What are the solutions to the equation?

5w^2+10w=40

Enter your answers in the boxes.

w =
and

Answers

Answer 1
5w^2 + 10w = 40
5w^2 + 10w - 40 = 0
Divide by 5 through ...
w^2 + 2w - 8 = 0
(w+4)(w-2) = 0
w = -4 or w = 2
Answer 2

Answer:

w= -4 and 2

Step-by-step explanation:

it's better to put it exactly how i wrote it to ensure you'll get it right ( -4 goes first then 2).


Related Questions

Use the table provided to determine the total amount paid on a 30 year fixed loan, at 6.0%, of $75,000.



$162,000

c.

$143,820

b.

$153,750

d.

$133,250

Answers


The right answer is A.162,000 

Answer:

162000

Step-by-step explanation:

For 75000 paying in 30 years at 6% we have

Mortgage Summary

Monthly Payment      $449.66

Total Interest Paid  $86,879

9

Total of 360 Payments $161,879

Pay-off Date  Feb, 2049

We find out of 4 options given 162000 is nearer to this 161879

Hence option of 162000 is the right answer.

One column of numbers consists of 33, 58, and 17. When the digits of the numbers are added together, the result is 3 + 3 + 5 + 8 + 1 + 7 = 27, and when the digits of 27 are then added together, the end result is 2 + 7 = 9. If the same process is performed on the numbers in a second column, what can be concluded? a.If the end result from the second column is also 9, then the sum of the numbers in the first column is equal to the sum of the numbers in the second column. b.If the end result from the second column is also 9, then the sum of the numbers in the first column is not equal to the sum of the numbers in the second column. c.If the end result from the second column is not 9, then the sum of the numbers in the first column is not equal to the sum of the numbers in the second column. d.If the end result from the second column is not 9, then the sum of the numbers in the first column is equal to the sum of the numbers in the second column.excel sum values based on another columnsum if greater than

Answers

The 3rd selection seems appropriate.

If the sum of digits is not 9, the sums will not be equal.

(This is a sometimes-useful way to check math operations of all sorts. The process is called "casting out 9s." It not only works on addition and subtraction, but also multiplication. Division can be checked this way, too, by casting the problem as multiplication. (if a/b=c, then bc=a.))

Consider this system of linear equations:

y = –3x + 5

y = mx + b

Which values of m and b will create a system of linear equations with no solution?

m = –3 and b = –3
m = 5 and b = –3
m = 3 and b = 5
m = 5 and b = –3

Engenuity answer is m= -3 and B= -3

Answers

Answer: m = - 3 and b = - 3.

Justification:

A system of linear equations will not have solutions if the two lines are parallel.

Two equations are parallel if their slopes (m) are equal and the y-intercep (b) are different.

Since the given equation is y = - 3x + 5, the value of m of the other equation, y = mx + b, in order to make a system with no solution, needs to be  - 3, and the value of b need to be different to 5.

The only pair from the choices that meets that is the first option m = - 3 and b = -3.

m = –3 and b = –3 or A

WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS CORRECTLY!!!!!! PLEASE HELP ASAP!!!!!

A roller coaster car follows a parabolic path over the first hill on its track. The height of the car, in feet, t seconds after the ride starts can be shown by the function given below.

h ( t ) = -3t^2 + 15t + 18

Which of the statements is true?

* The domain of the function is [0, 6], and it represents the car's time to reach maximum height.
* The domain of the function is [-1, 6], and it represents the car's time to reach maximum height.
* The domain of the function is [0, 6], and it represents the car's time to complete the hill.
* The domain of the function is [-1, 6], and it represents the car's time to complete the hill.

Answers

None of the options are entirely correct. The domain of the function is  [tex]\( t \geq 0 \)[/tex] , and it does not directly represent the time to complete the hill or reach maximum height.The domain is  representing all real numbers. The function doesn't directly indicate completion time or maximum height.

Let's analyze the given function  [tex]\( h(t) = -3t^2 + 15t + 18 \)[/tex] to determine the domain and its meaning:

1. **Domain of the function**:

  The domain of a quadratic function is all real numbers unless there are restrictions. In this case, there are no restrictions mentioned in the problem, so the domain is all real numbers. However, in the context of the roller coaster ride, the time ( t ) cannot be negative because it doesn't make sense for time to be negative in this scenario. Therefore, the practical domain is [tex]\( t \geq 0 \).[/tex]

2. **Time to reach maximum height**:

  The time to reach the maximum height of the roller coaster can be found using the vertex formula:  [tex]\( t = -\frac{b}{2a} \)[/tex] , where  [tex]\( a = -3 \) and \( b = 15 \)[/tex] (coefficients from the quadratic function). Substituting these values into the formula:

[tex]\[ t = -\frac{15}{2(-3)} = -\frac{15}{-6} = \frac{15}{6} = \frac{5}{2} \][/tex]

  Since time cannot be negative in this context, the time to reach the maximum height is [tex]\( t = \frac{5}{2} = 2.5 \)[/tex] seconds.

Now, let's analyze the given options:

- **Option 1: The domain of the function is [0, 6], and it represents the car's time to reach maximum height.**

 - The domain given is correct  [tex](\( t \geq 0 \)),[/tex]  but it incorrectly states that it represents the time to reach maximum height. The correct time to reach maximum height is [tex]\( t = 2.5 \)[/tex] seconds, not 6 seconds.

[tex]\( t \geq 0 \),[/tex]

- **Option 2: The domain of the function is [-1, 6], and it represents the car's time to reach maximum height.**

 - This option gives an incorrect domain. The domain is  [tex]\( t \geq 0 \), not \( t \geq -1 \).[/tex]

- **Option 3: The domain of the function is [0, 6], and it represents the car's time to complete the hill.**

 - This option correctly identifies the domain as  [tex]\( t \geq 0 \).[/tex] However, it incorrectly states that it represents the time to complete the hill. The function does not directly represent the time to complete the hill; it represents the height of the car at any given time.

- **Option 4: The domain of the function is [-1, 6], and it represents the car's time to complete the hill.**

 - This option gives an incorrect domain. The domain is [tex]\( t \geq 0 \),[/tex] not  [tex]\( t \geq -1 \).[/tex]

Therefore, none of the options are entirely correct. The domain of the function is  [tex]\( t \geq 0 \)[/tex] , and it does not directly represent the time to complete the hill or reach maximum height.

Zack deposited $1,200 in a savings account that paid 7.75% simple
interest. What was the balance in his account at the beginning of the
third year?
a. $180
b. $270
c. $1,393.21
d. $1,470

HELPPPPP ASAP AND GET BRAINEST

Answers

The correct answer is: Option (C) $1393.21

Explanation:
At the beginning of the Second year, the total balance would be:

$1200 + ($1200 * 7.75 / 100) = $1293

At the beginning of the Third year, the total balance would be:
$1293 + ($1293 * 7.75 / 100) = $1393.21 (Option C)

Answer:

$1386.      

Step-by-step explanation:

We have been given that Zack deposited $1,200 in a savings account that paid 7.75% simple interest. We are asked to find the balance in his account at the beginning of the  third year.

The balance in the account at the beginning of the  third year will be equal to balance in the account at the end of 2nd year.

We will use simple interest formula to solve our given problem.

[tex]A=P(1+rt)[/tex], where,

A = Amount after t years,

P = Principal amount,

r = Annual interest rate in decimal form,

t = Time in years.

Upon converting our given interest rate in decimal form we will get,

[tex]7.75\%=\frac{7.75}{100}=0.0775[/tex]

Upon substituting our given values in simple interest formula we will get,

[tex]A=\$1200(1+0.0775\cdot 2)[/tex]

[tex]A=\$1200(1+0.155)[/tex]

[tex]A=\$1200(1.155)[/tex]    

[tex]A=\$1386[/tex]

Therefore, an amount of $1386 will be in Jack's account at the beginning of third year.  

Which of the following is false?

the number of hours a person studies and the numerical score on the exam is a positive correlation

the speed of a vehicle and the time it takes the vehicle to travel 60 miles is a positive correlation

none, since all of the other answer choices are true

a child’s age and the height of a child is a positive correlation

Answers

I think, the speed of a vehicle and the time it takes the vehicle to travel 60 miles is a positive correlation, is false. This is because, positive correlation exists when one variable decreases as the other variable decreases or one variable increases while the pther increases. However, in the case of speed and time this doesn't happen, because increase in speed causes an decrease in time taken and a decrease in speed causes an increase in time taken.

Answer:

the speed of a vehicle and the time it takes the vehicle to travel 60 miles is a positive correlation

dolores is selling cucumbers from her backyard garden her garden is 48 square feet in total and she can grow 1 cucumber every 72 square inches if she can successfully grow cucumbers in every square foot of the garden and sell them for $2.50 each how much will she make?

Answers

Final answer:

Dolores will make $240 by growing and selling all the cucumbers possible in her 48 square feet garden, with each cucumber selling for $2.50.

Explanation:

To calculate the amount of money Dolores will make from selling cucumbers, we need to determine how many cucumbers she can grow in her 48 square feet garden, and then multiply that number by the selling price of $2.50 per cucumber. First, we'll convert the area of her garden into square inches since we know a cucumber takes up 72 square inches of space:

48 square feet × 144 square inches per square foot = 6,912 square inches.

Next, we divide this by the amount of space needed for one cucumber to find the total number of cucumbers she can grow:

6,912 square inches ÷ 72 square inches per cucumber = 96 cucumbers.

Finally, we'll multiply the number of cucumbers by the selling price:

96 cucumbers × $2.50 per cucumber = $240.

Therefore, Dolores will make $240 by selling all the cucumbers she can grow in her garden.

What is the length of a leg of an isosceles right triangle whose hypotenuse measures 6 inches? Let c represent the value of the hypotenuse. If the hypotenuse is c = a, then 6 = a. In inches, what is the value of a? 3 6

Answers

the answer depends on if the triangle is a 45-45-90 triangle or a 30-60-90 triangle. If it is a 45-45-90 triangle, then we would use the Pythagorean Theorem (a^2+b^2=c^2). plugging in the hypothesis, the equation would be a+b=36. If the legs are equal in the triangle, then each side would be the sqrt of 18 inches. Simplified, it would be 3r2.

In iscosceles right triangle the value of the unknown sides is equal to [tex]3\sqrt{2}[/tex] and it can be deteremine by using pythagorean theorem.

Given :

Iscosceles right triangle.Hypotenuse = 6.Both remaining sides are equal.

Let the length of unknown sides be 'a'. Than to deteremine the value of a, pythagorean theorem can be used.

[tex]\rm (Hypotenuse)^2 = (Perpendicular)^2 + (Base)^2[/tex]

[tex]6^2 = a^2+a^2[/tex]

[tex]2a^2 = 36[/tex]

[tex]a^2 =\dfrac{36}{2}[/tex]

[tex]a = \sqrt{18} =3\sqrt{2}[/tex]

Therefore, by applying pythagorean theorem the value of a which is [tex]3\sqrt{2}[/tex] can be determine.

For more information, refer the link given below

https://brainly.com/question/10652623

given the conversion factor 3.28 ft/ 1m which cube above has the larger surface area

cube A is 7’ cube b is 2m

Answers

The first thing that we are going to do in passing everything to the same unit.
 We have then:
 Cube A:
 7 * (1 / 3.28) = 2.13 m
 Cube B:
 2 m
 The surface area of a cube is:
 A = 6 * L ^ 2
 Where,
 L: side
 Since cube A has a longer side (2.13m) then it will have the largest surface area.
 Answer: 
 Cube A has the larger surface area

Final answer:

After converting Cube B's side length to feet, Cube A has a surface area of 294 ft² while Cube B has a surface area of 258.2016 ft², making Cube A the one with the larger surface area.

Explanation:

To determine which cube has the larger surface area, we must work with a common unit of measurement for both cubes. We'll convert Cube B from meters to feet using the conversion factor 3.28 ft/1m.
For Cube A with a side length of 7 feet, the surface area (SA) is calculated by the formula SA = 6 × s² (where 's' is the side length).
SA (Cube A) = 6 × (7 ft)² = 6 × 49 ft² = 294 ft².
For Cube B with a side length of 2 meters, we first convert meters to feet: 2 m × 3.28 ft/m = 6.56 ft. So, the surface area of Cube B becomes:
SA (Cube B) =  6 × (6.56 ft)² = 6 × 43.0336 ft² = 258.2016 ft².
Between Cube A and Cube B, Cube A has the larger surface area.

Identify the cross section shown.

a. rectangle
b. circle
c. trapezoid
d. pentagon

Answers

a). rectangle bc the sides are longer than the top and bottom
Answer:

Option : a is the correct answer.

            a.  rectangle.

Step-by-step explanation:

From the figure that is provided to us we see that the cross-section is in the shape of a quadrilateral such that it has two pair of parallel sides.

b)

          circle

A circle does not have any edge or sides.

Hence, option: b is incorrect.

c)

           Trapezoid

A trapezoid is a quadrilateral with one pair of parallel sides and one pair of unparallel sides.

Hence, option: c is incorrect.

d)

             Pentagon

A pentagon is a polygon with 5 sides.

Hence, option: d is incorrect.

      Hence, the best possible answer is:

              Rectangle

An equilateral triangle has an altitude length of 36 feet. Determine the length of a side of the triangle.

Answers

[tex]\bf \textit{height of an equilateral triangle}\\\\ h=\cfrac{s\sqrt{3}}{2}\quad \begin{cases} s=\textit{length of a side}\\ ---------\\ h=36 \end{cases}\implies 36=\cfrac{s\sqrt{3}}{2} \\\\\\ 72=s\sqrt{3}\implies \cfrac{72}{\sqrt{3}}=s~~\stackrel{rationalizing~it}{\implies }~~\cfrac{72}{\sqrt{3}}\cdot \cfrac{\sqrt{3}}{\sqrt{3}}\implies \cfrac{7\sqrt{3}}{3}[/tex]

HELP ASAP!!
Given: ABCD is a parallelogram.
Prove: ∠A and ∠D are supplementary.

By the definition of a parallelogram, AB∥DC. AD is a transversal between these sides, so ∠A and ∠D are ? angles. Because AB and DC are ? , the same-side interior angles must be ? by the same-side interior angles theorem. Therefore, ∠A and ∠D are supplementary.

Answers

sorry this is so late but the answers are: same-side interior, parallel, and supplementary

A parallelogram is a quadrilateral with four sides. The opposite sides of the parallelogram are equal and parallel.

In the given figure, AB||DC. AD is the transversal, such that:

∠A + ∠D = 180-degrees.

The parallelogram is a quadrilateral with equal and parallel sides, such that the interior angles present on the same side of the transversal are supplementary.

The sum of supplementary angles is equal to 180-degrees.

From the theorem of same-side interior angles, the supplementary angles present on the parallel lines must be intersected by a transversal.

Since, in the parallelogram ABCD, AD is the transversal.

From the property of transversal, the interior angles on the same side of the transversal are supplementary.

Therefore, ∠A and ∠D are supplementary and their sum is equivalent to 180-degrees.

To know more about parallelogram and their properties, refer to the following link:

https://brainly.com/question/15584566

A doctor's office mails a survey to each of its patients. The results of the survey are based off of the total number of patients.

Which of the following could affect the outcome of their surveys?

A.The results could be flawed because the sample population was too large.

B.The results could be flawed due to a wide range of topics in the questions.

C.The survey is biased because they are only asking patients.

D.The results could be flawed due to non-response of patients.

Answers

D.The results could be flawed due to non-response of patients.

Answer:

The results could be flawed due to non-response of patients.

Step-by-step explanation:

A doctor's office mails a survey to each of its patients. The results of the survey are based off of the total number of patients. The office is mailing the patients. It is very likely that patients do not read out the survey mail. So, they cannot respond to the survey or a very few patients will respond back. So, option 4th is the correct. The results could be flawed due to non-response of patients.

question 1.) simplify 6(2 + 0.3)5

A.) about 0.03
B.) about 12.01
C.) about 85.19
D.) about 386.18

question 2.) solve 32x = 7
A.) x = 0.22
B.) x = 4.57
C.) x = 25
D.) x = 39

Answers

The answer is d she aint welcome

Answer: Q1) 386.18

Step-by-step explanation:

Q1): You do the parenthesis first.

6(2+0.3)^5

2+0.3 = 2.3^5 = 64.36343

then do 6(64.36343) = 386.18

For Q2 I believe the answer is 0.22 if you do 7 divided by 32 you get 0.21875 and you round that to get 0.22

Don't want any answers, just how to solve, step by step. please :)

Answers

[tex]\bf \sqrt[3]{875x^5y^9}\quad \begin{cases} 875=5\cdot 5\cdot 5\cdot 7\\ \qquad 5^3\cdot 7 \end{cases}\implies \sqrt[3]{5^35x^{3+2}y^{3\cdot 3}} \\\\\\ \sqrt[3]{5^35x^3x^2(y^3)^3}\implies 5x(y)^3\sqrt[3]{5x^2}\implies 5xy^3\sqrt[3]{5x^2}[/tex]

Look at the isosceles trapezoid below.

Answers

Answer:

Not enough information to decide

Step-by-step explanation:

If m were the midline, its length would be 32/2 = 16 cm. However, there is nothing in the figure to indicate that is the case. There is not enough information to decide.

Use the equation you have written above determine the cost for each bracelet. Show the algebraic steps that it takes to find the answer. Provide your conclusion.

Answers

i dont see the problem sorry

HELP FAST PLEASE!!
Martin simplified the composed function f(x)=sin(arctan x). His work is shown below.
Step 1: f(x)=sinA, where A=arctan x and x = tanA
Step 2: tanA= opp/adj=x/1
Step 3: hypotenuse= square root of 1^2-x^2= square root of 1-x^2
Step 4: sinA=opp/hyp=x/squareroot 1-x^2
In which step did Martin make is first error?

Answers

we have that

Step 1: f(x)=sinA, where A=arctan x and x = tanA-----> is correct
Step 2: tanA= opp/adj=x/1-----------> is correct
Step 3: hypotenuse= square root of 1²-x²= square root of 1-x²-----> is not correct
Because hypotenuse= square root of (1² + x²)=square root of (1+x²)
Step 4: sinA=opp/hyp=x/square root of (1+x²)

the answer is
In step 3 Martin make is first error

Answer:

1. B f(x)=4sinx/2-3

2. B, F, G (c=-1. a=2, b=2)

3. c. H(t)=-2.4cos(0.017t)+12

4. A, B, E, F (y=cos^-1x, y=cot^-1x, y=sin^-1x, y=tan^-1x)

5. C y=sin^-1x

6. C 48.7

7. C f(g(x))=sec(sinx) domain: all real #

8. C step 3

Step-by-step explanation:

help help quickly!!!!!

Answers

[tex]\left( \frac{750}{512}\right)^{ \frac{1}{3} } = \sqrt[3]{ \frac{750}{512} }= \frac{ \sqrt[3]{750} }{ \sqrt[3]{512} }= \frac{5}{8} \sqrt[3]{6} [/tex]

The correct answers are A, B and C
i did solve the problem, the answer is the second choice, pl follow the steps
hope it helps

If b is the midpoint of \frac{ }{ac} a c , d is the midpoint of \frac{ }{ce} c e , and bd = 19 , find ae .

Answers

sorry fam im stumped hope you get the answer your looking for

Explain how the exponent of 10 changes when you multiply a number written in scientific notation by 100. Show an example.

Answers

Expressions can be easily multiplied when written in scientific notation by:
1. First, multiplying the numbers other than the powers of 10.
2. Second, multiplying the powers of 10
And then, writing them as a product.

Let us take the general case first.

Multiplying two numbers x⋅10m and y⋅10n

First, multiplying the numbers other than the powers of 10, we get:
x⋅y=xy

Second, multiplying the powers of 10 we get
10m⋅10n=10m+n

And then writing them as a product, we get
xy⋅10m+n

Therefore, (x⋅10m)⋅(y⋅10n)=xy⋅10m+n

Note: When the bases of 2 numbers are equal, their powers can be added up!
Examples: 
1). 2a⋅2b=2a+b
2) 33⋅37=33+7=310

Now, let's take some specific examples.

Q: Multiply 1.2⋅103 and 2.3⋅104

A:

(1.2⋅103)⋅(2.3⋅104)
=(1.2⋅2.3)⋅(103+4)
=2.76⋅107

Q: Multiply 9.32⋅1021 and 8.21⋅1032

A:

(9.32⋅1021)⋅(8.21⋅1032)
=(9.32⋅8.21)⋅(1021+32)
=76.5172⋅1053

Notice that this answer is not in the standard form. So, converting this into standard form, we get:

=7.65172⋅1054


Hope this helps
Have a good day!

Final answer:

When a number in scientific notation is multiplied by 100, its exponent of 10 increases by 2 since 100 is equivalent to 10 squared (10²). For example, 3.14 x 10⁴ multiplied by 100 becomes 3.14 x 10⁶.

Explanation:

When you multiply a number in scientific notation by 100, the exponent of 10 increases by 2.

This is because 100 can be written as 10² or 10 squared.

So, if we have a number like 3.14 × 10⁴ and we multiply by 100, we are essentially multiplying by 10².

We keep the coefficient the same (3.14) and add the exponents of 10:

3.14 × 10⁴ × 102 = 3.14 × 10⁴+23.14 × 10⁴ × 100 = 3.14 × 10⁶

The resulting scientific notation is 3.14 × 10⁶, which means the exponent of 10 increased by 2 as we multiplied by 100.

Quadrilateral RJFT is similar to quadrilateral SYPA . JF=60 mm , AP=40 mm , and YP=25 mm . What is TF ?

Answers

The two quadrilaterals are similar. Which means the ratios of respective sides of two quadrilaterals will be the same. 

So, for the given quadrilaterals, ratio of sides JF and TF of quadrilateral RJFT will be equal to the ratio of sides YP and AP of quadrilateral SYPA. Mathematically, we can write:

[tex]JF:TF = YP:AP \\ \\ \frac{JF}{TF} = \frac{YP}{AP} \\ \\ \frac{60}{TF} = \frac{25}{40} \\ \\ 60* \frac{40}{25}=TF \\ \\ TF=96mm [/tex]

So the measure of TF will be 96mm

Final answer:

To find the length of FT in the similar quadrilaterals RJFT and SYPA given specific side lengths, apply the scale factor method to determine FT = 37.5 mm.

Explanation:

Quadrilateral RJFT is similar to quadrilateral SYPA. Given that JF=60 mm, AP=40 mm, and YP=25 mm, we can solve for FT.

Calculate the scale factor between the two similar quadrilaterals using side lengths: JF/AP = FT/YP.

Substitute the given values to find the length of FT.

Calculate FT = (60 mm * 25 mm) / 40 mm = 37.5 mm.

Write the standard equation of a circle that passes through (1, −6) with center (7, −2).

Answers

The standard equation of the circumference is given by:
 (x ─ a) ^ 2 + (and ─ b) ^ 2 = r ^ 2
 Where,
 The ordered pair (a, b) represents the center of the circle.
 The radius of the circumference is r.
 In this case to find the radius of the circumference we must find the distance between the points (1, -6) and (7, -2).
 We have then:
 r = root ((x2-x1) ^ 2 + (y2-y1) ^ 2)
 r = root ((7-1) ^ 2 + (-2 - (- 6)) ^ 2)
 r = 2 * root (13)
 The equation of the circumference will be:
 (x ─ 7) ^ 2 + (y + 2) ^ 2 = (2 * root (13)) ^ 2
 (x ─ 7) ^ 2 + (y + 2) ^ 2 = 52
 Answer:
 (x ─ 7) ^ 2 + (y + 2) ^ 2 = 52

If f(x)=3x^2-1 and g(x)=x+2, find (f+g)(x)

Answers

Answer:
(f+g)(x) = 3x^2 + x + 1

Explanation:
We are given that:
f(x) = 3x^2 - 1
g(x) = x + 2
To find (f+g)(x), all we have to do is add the above to functions as follows:
(f+g)(x) = f(x) + g(x)
= 3x^2 - 1 + x + 2
= 3x^2 + x + 1

Hope this helps :)

Answer:


Step-by-step explanation:

X^2+3x-1 apex

Identify a possible first step using the elimination method to solve the system and then find the solution to the system.
12x – 3y = 6
2x – y = 2
A) multiply second equation by 6, solution (2,0)
B) multiply second equation by 6, solution (-2,0)
C) multiply second equation by -6, solution (0,2)
D) multiply second equation by -6, solution (0,-2)

Answers

The correct answer is D

Answer:

D) multiply second equation by -6, solution (0,-2)

Step-by-step explanation:

This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations.

As such, in the given set of equations

12x – 3y = 6

2x – y = 2

We may make the coefficients of x the same by multiplying the second by 6 or the coefficient of y by multiplying the second by 3. Using the first

12x – 3y = 6

12x – 6y = 12

equation 1 - equation 2

3y = -6

y =  -2

2x + 2 = 2

x = 0

is y=0.8(2.1)x exponential growth or exponential decay

Answers

The growth factor (2.1) is larger than 1, so the model represents exponential growth.
The answer is:  "exponential growth" .
______________________________________________________
Given:  y = (0.8)(2.1)ˣ 
______________________________________________________
Let us make a table and plug in some "x" values and see what the "y" values are:
______________________________________________________
  x   |  y
_______________
  1   |  1.68
_______________
  2  |  3.528
_______________
  3  |  7.4088
__________________________________________________________

The answer is:  "exponential growth" .
__________________________________________________________
As "x" increases, "y" increases (by more than a linear relationship/proportion).
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The area of the rectangle shown is given by the function A(x) = 2x2 - 5x. If the width of the rectangle is 13, what is the area

Answers

If the width of the reactangle is x=13, the area of the rectangle is:
A(13)=2*(13)^2-5*(13)
A(13)=2*(169)-65
A(13)=338-65
A(13)=273

The area of the rectangle is 273 square units 

The area of the rectangle is 273 square units.

The task is to find the area of a rectangle where the width of the rectangle is given as 13, and the area as a function of x is provided as A(x) = 2x² - 5x.

To find the area, we need the value of x that corresponds to the width. Since the width is 13, we set x as 13 and substitute it into the area function.

A(13) = 2(13)² - 5(13) = 2(169) - 65 = 338 - 65 = 273 square units.

Thus, the area of the rectangle is 273 square units.

You and a friend tutor for a total of 12 hours. Use the tape diagram to find how many hours you tutor.

Answers

I teach 9 and 6 hours respectively

Left diagram:

In this diagram you show three quarters of the hours.

We have then:

(3/4) * (12) = 9

Answer:

You teach 9 hours.

Right diagram:

In this diagram you teach half of the hours.

We have then:

(2/4) * (12) = 6

Answer:

You teach 6 hours

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The probable question can be: image attached

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You tutored for 6 hours, your friend tutored for 6 hours as well.

Image:

You and a friend listen for a total of 2 hours.

You

Friend

You

The image shows a tape diagram with two sections labeled "You" and "Friend". The "You" section is longer than the "Friend" section, indicating that you tutored for more hours than your friend.

To find the number of hours that you tutored, we can divide the total number of hours tutored (12 hours) by the number of sections in the tape diagram (2).

Number of hours you tutored = 12 hours / 2 sections = 6 hours

Therefore, you tutored for 6 hours.

Explanation of tape diagrams:

A tape diagram is a visual representation of a mathematical equation. It is a horizontal bar that is divided into sections, with each section representing a different quantity. The length of each section represents the size of the quantity it represents.

Tape diagrams can be used to solve a variety of mathematical problems, including addition, subtraction, multiplication, and division problems. They are especially useful for solving problems that involve multiple quantities, as they can help to visualize the relationships between the different quantities.

In this case, the tape diagram is used to solve the following problem:

> You and a friend tutor for a total of 12 hours. Use the tape diagram to find how many hours you tutor.

The tape diagram is divided into two sections, one for you and one for your friend. The length of each section represents the number of hours that each person tutored. Since you tutored for more hours than your friend, the "You" section is longer than the "Friend" section.

To find the number of hours that you tutored, we can divide the total number of hours tutored (12 hours) by the number of sections in the tape diagram (2). This gives us the number of hours that you tutored, which is 6 hours.

Therefore, the answer to the question is "You tutored for 6 hours."

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What is the measure of EG?

Answers

The first thing you should know in this case is that a circumference has a total measure in 360 degrees.
 We have then that the formula to find EG in this case is:
 EG + GF + FE = 360
 We cleared EG:
 EG = 360-GF-FE
 We substitute the values:
 EG = 360-83-66
 EG = 211
 Answer
 EG = 211 degrees.

Steve drew a floorplan of his living room. The floorplan is represented by rectangle ABCD. He drew a dilation of his represented by rectangle A’B’C’D’ on the coordinate plane below. Each square unit on the coordinate plane represents a square with 1-foot sides. I WILL GIVE THE FIRST ANSWER BRAIN!

Answers

every side of a square is dilated by scale factor of 5.
so A is true I guess.
[tex] \frac{1}{6} = \frac{x}{30} \\ x = \frac{30 \times 1}{6} = 5[/tex]
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