When planning for a party, one caterer recommends the amount of meat be at least 2 pounds less than 1/3 the total number of guests. Which graph represents this scenario?





When Planning For A Party, One Caterer Recommends The Amount Of Meat Be At Least 2 Pounds Less Than 1/3
When Planning For A Party, One Caterer Recommends The Amount Of Meat Be At Least 2 Pounds Less Than 1/3
When Planning For A Party, One Caterer Recommends The Amount Of Meat Be At Least 2 Pounds Less Than 1/3
When Planning For A Party, One Caterer Recommends The Amount Of Meat Be At Least 2 Pounds Less Than 1/3

Answers

Answer 1

Answer:

The graph in the attached figure

Step-by-step explanation:

Let

x-----> the total number of guests

y -----> the amount of meat

we know that

The inequality that represent this situation is equal to

[tex]y\geq \frac{1}{3}x-2[/tex]

Note The inequality is "greater than or equal" because the given statement say "at least"

The solution of this inequality is the shaded area above the solid line [tex]y=\frac{1}{3}x-2[/tex]

The slope of the solid line is positive

The y-intercept of the solid line is -2  

The x-intercept of the solid line is 6

therefore

The graph in the attached figure

Remember that

The values of x an y cannot be a negative number

When Planning For A Party, One Caterer Recommends The Amount Of Meat Be At Least 2 Pounds Less Than 1/3
Answer 2

Answer:

4th graph

Step-by-step explanation:


Related Questions

76degrees faherheit = what in Celsius?​

Answers

Answer:

24.4444

Step-by-step explanation:

76 degrees faherheit = 24.4444 degrees Celsius

(76°F − 32) × 5/9 = 24.444°C

Answer:

rjjj3krktkkrkrkektk4kgk4mgk3mrl3lfkwjkeoc

Select the values that are solutions to the inequality x2 + 3x – 4 > 0.

Answers

Answer:

So any number in the following set is a solution:

[tex](-\infty,-4) \cup (1,\infty)[/tex]

given the inequality to solve was:

[tex]x^2+3x-4>0[/tex]

Step-by-step explanation:

The left hand side is a quadratic while the right hand side is 0.

Since this is a quadratic>0, I'm going to factor the quadratic if possible and then solve that quadratic=0 for x.

That is I'm going to solve:

[tex]x^2+3x-4=0[/tex]

Since a=1, I get to ask what multiplies to be c (-4) and add up to be b(3).

Those numbers are 4 and -1.

So the factored form for the equation is:

[tex](x+4)(x-1)=0[/tex]

Setting both factors equal to 0 since 0*anything=0:

x+4=0            and              x-1=0

 -4   -4                                 +1   +1

---------------------------------------------------

x=-4              and                   x=1

Ok so if this wasn't a quadratic I would make a number line and choose numbers to plug into the quadratic to see which intervals would give me positive results.  I say positive due to the >0 part.

However since I know about the shapes of quadratics, I'm going to use that.

The quadratic function [tex]f(x)=x^2+3x-4[/tex] has x-intercepts (-4,0) and (1,0) and is open up.

I determine that it was opened up because the leading coefficient is 1 which is positive.

Now the left tail and right tail is what is above the x-axis so the solution set is:

[tex](-\infty,-4) \cup (1,\infty)[/tex]

Answer:

-6 and 5

Step-by-step explanation:

Find the area the sector

Answers

Answer:

A= 706.85m^2

Step-by-step explanation:

A= 4• Pi•r^2

= 4•Pi•15^2

=2827.43/4

=706.8575m^2

For this case we have that by definition, the area of a circular sector is given by:

[tex]A = \frac {a * r ^ 2} {2}[/tex]

Where:

r: It's the radio

a: It is the angle of the sector

We have to:

a = 90 degrees

[tex]90\ degrees = \frac {\pi} {2}[/tex]

Then, replacing:

[tex]A = \frac {\frac {\pi} {2} * 15 ^ 2} {2} = \frac {225 \pi} {4}[/tex]

Answer:

Option A

If the angle measure is the largest of the triangle, what do you know about the side opposite?

It is the length.

If a side is the shortest of the triangle, what do you know about the angle opposite that side?

It is the degree measure.

Answers

Answer:

A) the longest side

B) the smallest angle

Step-by-step explanation:

Relationship of sides to interior angles in a triangle

In a triangle:    

The shortest side is always opposite the smallest interior angleThe longest side is always opposite the largest interior angle

Recall that in a scalene triangle, all the sides have different lengths and all the interior angles have different measures. In such a triangle, the shortest side is always opposite the smallest angle. Similarly, the longest side is opposite the largest angle.

So,

A) the longest side

B) the smallest angle

Answer:  the longest side

the smallest angle

Step-by-step explanation: the largest is longest

the smallest is shortest

Need help in number 20. Thanks for helping

Answers

Answer:

It is F

Step-by-step explanation:

if you plug in the y and x values that should get you the answer

Answer:

F.

Step-by-step explanation:

Find the midpoint between (4,-1) and (3,2)

Answers

Midpoint has form of,

[tex]M(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})[/tex]

We can insert the data,

[tex]M(\dfrac{4+3}{2},\dfrac{-1+2}{2})[/tex]

Which simplifies to,

[tex]\boxed{M(3.5, 0.5)}[/tex]

Hope this helps.

r3t40

1/2p+ 2/5 p =



Simplify expression ^^

Answers

Answer:

9/10p

Step-by-step explanation:

1/2p+ 2/5 p

Get a common denominator of 10

1/2 p *5/5 = 5/10 p

2/5p *2/2 = 4/10 p

1/2p * 2/5 p

5/10p * 4/10 p

9/10p

The longest side of an isosceles triangle is 11 cm less than twice as long as the other sides. The perimeter of the triangle is 49 cm. Find the lengths of the three sides and list them in ascending order.
___cm, ____cm, ____cm

Answers

Answer:

15 cm, 15 cm, and 19 cm

Step-by-step explanation:

Isosceles Triangle is a type of triangle in which two of the three sides are equal in length. The perimeter is 49 cm. Therefore, in this question, since the sides are unknown, we can assume that:

Length of the longer side = x cm.

Length of the other sides = y cm.

The relationship between x and y is given by:

x = (2y - 11) cm (because it is mentioned that the longest side is 11 cm less than twice as long as the other sides).

Perimeter of a triangle = sum of all sides.

Since its an isosceles triangle, therefore:

Perimeter of the triangle = x + 2y.

Substituting the values in the perimeter formula gives:

Perimeter of the triangle = 2y - 11 + 2y.

49 = 4y - 11.

4y = 60.

y = 15 cm.

Substituting y = 15 in the equation x = 2y - 11 gives x = 2(15) - 11 = 19 cm.

So in the ascending order, the lengths are 15 cm, 15 cm, and 19 cm!!!

Final answer:

To solve for the lengths of the sides of the isosceles triangle, we create an equation based on the given perimeter and the relationship between the sides. After simplifying, we find that each of the equal sides is 15 cm and the longest side is 19 cm. Thus, the sides in ascending order are 15 cm, 15 cm, 19 cm.

Explanation:

The question involves finding the lengths of the sides of an isosceles triangle given the perimeter and a relationship between its sides. Let the length of the two equal sides be x cm. According to the problem, the longest side would be 2x - 11 cm. The perimeter of the triangle is the sum of the lengths of all sides, which is given as 49 cm.

Now we set up the equation:

x + x + (2x - 11) = 49

Combining like terms, we get:

4x - 11 = 49

Adding 11 to both sides of the equation, we get:

4x = 60

Dividing both sides by 4, we find:

x = 15

The lengths of the two equal sides are each 15 cm, and the longest side is:

2(15) - 11 = 30 - 11 = 19 cm

So, the lengths of the sides in ascending order are: 15 cm, 15 cm, 19 cm

Nathan wanted to make a safe investment with decent returns. His financial advisor suggested a financial service that provided a higher rate of interest. However, he warned Nathan that he won’t be able to withdraw the money before the maturity date. Which financial service has Nathan’s financial advisor suggested?

A.
checking account
B.
certificates of deposit
C.
savings account
D.
stocks and bonds

Answers

C is the answer
Nathan was advised to get a saving account

One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the third angle is 20 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
The LARGEST angle has a measure of ____ degrees.

Answers

Answer:

LARGEST ANGLE= 96 DEGREES

Step-by-step explanation:

MEASURE OF LARGEST ANGLE= 3A

SMALLEST ANGLE= A

THIRD ANGLE= 20+A

3A+A+20+A=180(SUM OF INTERIOR ANGLES OF TRAINGLE IS 180 DEGREES)

TRANSPOSE 20 TO RHS.

5A=180-20=160

A=160/5

=32

MEASURE OF SMALLEST ANGLE=32

LARGEST ANGLE=3A=3*32=96 DEGREES

THIRD ANGLE=32+20=52 DEGREES

Answer:

The largest angle has a measure of 96 degrees.

Step-by-step explanation:

In order to solve this problem, we have to know the fact that the sumatory of the internal angles of any triangle is 180 degrees.

With this statement in mind, and looking at the image, we can say:

180 = A + B + C (eq. 1)

Before continue any further, let's affirmt that B is the smallest angle.

Now the enunciate says "One angle in a triangle has a measure that is three times as large as the smallest angle"; This can be express as:

A = 3B (eq. 2)

The other enunciate is "The measure of the third angle is 20 degrees more than that of the smallest angle" This can be express as:

C = B + 20 (eq. 3)

Now, replacing equations 2 and 3 into 1:

(eq. 1) 180 = 3B + B + B + 20

And clearing B:

B = 32.

By knowing B, we can clear A and C from equations 2 and 3 respectively:

(eq. 2) A = 3B,  so A= 96

(eq. 3) C = B + 20, so C =52

PLEASES HELPPP !!!!
Which of the following is an equation of a line parallel to the equation y=1/2x+1?
a. y=-1/2x+1
b. y=-2x-5
c. y=1/2x-5
d. y=2x-5

Answers

Answer:

[tex]\large\boxed{C.\ y=\dfrac{1}{2}x-5}[/tex]

Step-by-step explanation:

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

m - slope

b - y-intercept

[tex]\text{Let}\ k:y=m_1x+b_1,\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff\ m_1m_2=-1\to m_2=\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2[/tex]

Parallel line have the same slope.

Therefore a line parallel to the line [tex]y=\dfrac{1}{2}x+1[/tex] has equation

[tex]y=\dfrac{1}{2}x+b[/tex]

which two quantities form a proportional relationship?
A.1/4 and 3/8
B.2/15 and 3/30
C.10/18 and 45/81
D.5/6 and 5/24

Answers

c.10/18 and 45/81

10/18=.5555555555555555555555

45/81=.5555555555555555555555

Answer:

D 5/6 and 5/24

step by step explanation  :

when you multiply 6 times 4 it equals 24

Assemble the proof by dragging tiles to the statements HELLPPPPPP PLEASEEEE

Answers

Answer:

See explanation

Step-by-step explanation:

1. [tex]JK\cong LM[/tex] - given

2.  [tex]JL\cong LN[/tex] - definition of midpoint (the midpoint of the segment divides the segment into two congruent segments)

3. [tex]\angle LJK\cong \angle NLM[/tex] - corresponding angles theorem (corresponding angles theorem states: If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.)

4. [tex]\triangle JLK\cong \triangle LNM[/tex] - SAS (SAS postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent).

What is the value of x?

Answers

Answer:

x = 8

Step-by-step explanation:

The sum of the exterior angles of a polygon = 360°

Sum the exterior angles and equate to 360

62 + 66 + 77 + 59 + 12x = 360, that is

264 + 12x = 360 ( subtract 264 from both sides )

12x = 96 ( divide both sides by 12 )

x = 8

The sum of a number and twice its reciprocal is 27/5. Find
the number.​

Answers

Answer:

x  , reciprocal= 1/x  

x+2(1/x)=27/5  

x+2/x=27/5  

x^2+2=27/5*x  

x^2-27/5*x+2=0  

(x-5)(x-2/5)=0  

x=5, 2/5

Kelly has 11 markers in a backpack. One of them is pink and one is blue. Find the probability Kelly will reach into the backpack without looking and grab the pink marker and then reach in a second time and grab the blue marker. Express your answer as a fraction in simplest form.

Answers

Answer:

1/110

Step-by-step explanation:

Her chance of originally grabbing a pink marker is 1/11. Her chance of grabbing a blue marker after the pink marker is taken out is 1/10. When you multiply 1/11 by 1/10, you get a 1/110 chance of getting the colored markers in this series

Answer:

The probability of her picking both out in a sequence would be [tex]\frac{1}{110}[/tex]

Step-by-step explanation:

Hello, this is a great question and one that many people struggle with in school. Hopefully I can help you understand it more clearly. Kelly has 11 markers in total within her backpack and needs to randomly pick out the pink marker. since there is only 1 that would mean her probability of picking out the pink marker is 1/11 .

Now there are 10 markers inside the backpack and she needs to randomly pick out the blue marker. since there is only 1 blue marker that would mean her probability of picking that one out is 1/10.

So now we have the following probabilities

1/11 for the pink marker 1/10 for the blue marker

Now if we want to find the probability of her getting the pink marker and the blue marker one after another we would need to multiply both fractions together

[tex]\frac{1}{11} * \frac{1}{10} = \frac{1}{110}[/tex]

So the probability of her picking both out in a sequence would be [tex]\frac{1}{110}[/tex]

The first term of a sequence is 4 and the common ratio is –2. What is the formula for the sequence based on term number

Answers

Answer:

its B and the next one is C

Step-by-step explanation:

Formula for the sequence based on term number is

[tex]a_{n} =(4)(2)^{n-1}[/tex].

What is geometric sequence?

In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of non-zero numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.

Given

First term [tex]a[/tex] = 4

Common ratio r = -2

It is a geometric sequence because we have common ratio

Formula for the sequence based on term number is

[tex]a_{n} =ar^{n-1}[/tex]

[tex]a_{n} =(4)(2)^{n-1}[/tex]

Hence, Formula for the sequence based on term number is

[tex]a_{n} =(4)(2)^{n-1}[/tex].

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What is the interquartile range of the following data set? 13, 17, 18, 15, 12, 21, 10

Answers

Answer:

6

Step-by-step explanation:

The interquartile range is a measure of the difference between the upper quartile and the lower quartile.

The first step is to organise the data in ascending order, that is

10, 12, 13, 15, 17, 18, 21

Next find the median which is the middle value of the data.

10, 12, 13, 15, 17, 18, 21

                 ↑ ← the median = 15

Now find the upper and lower quartiles which are the middle values of the data to the right and left of the median.

10, 12, 13, 15, 17, 18, 21

      ↑                    ↑

upper quartile = 18 and lower quartile = 12

interquartile range = 18 - 12 = 6

Interquartile range of the given data set is 6.

What is interquartile?

Interquartile is the difference between upper quartile and lower quartile

Lower quartile is the median of the lower half of the data set.

Upper quartile is the median of the upper half of the data set.

Given data set 13, 17, 18, 15, 12, 21, 10

Arranging the data set in ascending order we get 10, 12, 13, 15, 17, 18, 21

Number of values in the data set is n = 7

Lower quartile is given by [tex]Q_{1} =\frac{n+1}{4} =\frac{7+1}{4} =\frac{8}{2} =2^{nd} \ value[/tex]

Therefore, the lower quartile is [tex]Q_{1} =12[/tex]

Upper quartile is given by [tex]Q_{3}=\frac{3}{4} (n+1)=\frac{3}{4} (7+1)=\frac{3}{4}(8)=6^{th} \ value[/tex]

Therefore, the upper quartile is [tex]Q_{1} =18[/tex]

Therefore, the inter quartile is given by [tex]Q_{3}-Q_{1} =18-12=6[/tex]

Interquartile range of the given data set is 6.

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The area of two rectangles is given by he functions: area of a rectangle A:f(x)= 4x2+6x area of rectangle B:g(x)=3x2-x Which function represents the difference? A.h(x)=7x2-5x B.h(x)=x2-7x C.h(x)=x2+5x D.h(x)=x2+7x

Answers

Answer:

x^2+7x if you are asked to find the difference of a function f and function g

Step-by-step explanation:

We are asked to A-B or f(x)-g(x).

(4x^2+6x)-(3x^2-x)

4x^2+6x-3x^2+x

The like terms I'm going to pair up.

4x^2-3x^2+6x+x

1x^2          +7x

x^2            +7x

The answer is x^2+7x

Answer:

OPTION D: [tex]h(x)=x^2+7x[/tex]

Step-by-step explanation:

You know that the area of Rectangle A is given by :

[tex]f(x)= 4x^2+6x[/tex]

And the area of Rectangle B is given by:

[tex]g(x)=3x^2-x[/tex]

Therefore, in otder to find the function that represents the difference, you need to subtract the functions f(x) and g(x).

Then, you get this function h(x):

 [tex]h(x)=f(x)-g(x)\\\\h(x)= (4x^2+6x)-(3x^2-x)\\\\h(x)=4x^2+6x-3x^2+x\\\\h(x)=x^2+7x[/tex]

a rectangle has a width of 9 units and a length of 40 units.what is the length of a diagonal

Answers

Answer:

41 units

Step-by-step explanation:

In this question, you should remember that the diagonal  drawn will represent the longest side of the triangle that will be formed .This is to say the triangle will have the two shorter sides (the length and width) and the longest side (diagonal).

Apply the Pythagorean relationship where

The width will be the shortest side aThe length will be the other side bThe diagonal will be the hypotenuse c

The formula to apply here will be

[tex]a^2+b^2=c^2\\\\\\a=9,b=40,c=?\\\\\\9^2+40^2=c^2\\\\\\81+1600=c^2\\\\\\c^2=1681\\\\\\c=\sqrt{1681} =41units[/tex]

Answer:

Diagonal = 41 units

Step-by-step explanation:

It is given that,a rectangle has a width of 9 units and a length of 40 units.

To find the diagonal of rectangle

We know that rectangle can be considered as combination of two right triangles.

Here length of right triangle = 40 units and height = 9 units

Hypotenuse = diagonal of rectangle.

Hypotenuse² = Length² + height

 = 40² + 9²

 = 1600 + 81

 = 1681

Hypotenuse = √1681 = 41

Therefore diagonal of rectangle = 41 units

Which statements are always true regarding the diagram? Check all that apply. m∠3 + m∠4 = 180° m∠2 + m∠4 + m∠6 = 180° m∠2 + m∠4 = m∠5 m∠1 + m∠2 = 90° m∠4 + m∠6 = m∠2 m∠2 + m∠6 = m∠5

Answers

Answer:

The true statements are:

m∠ 3 + m∠ 4 = 180° ⇒ 1st

m∠ 2 + m∠ 4 + m∠ 6 = 180° ⇒ 2nd

m∠ 2 + m∠ 4 = m∠ 5 ⇒ 3rd

Step-by-step explanation:

* Look to the attached diagram to answer the question

# m∠ 3 + m∠ 4 = 180°

∵ ∠ 3 and ∠ 4 formed a straight angle

∵ The measure of the straight angle is 180°

∴ m∠ 3 + m∠ 4 = 180° ⇒ true

# m∠ 2 + m∠ 4 + m∠ 6 = 180°

∵ ∠ 2 , ∠ 4 , ∠ 6 are the interior angles of the triangle

∵ The sum of the measures of interior angles of any Δ is 180°

∴ m∠ 2 + m∠ 4 + m∠ 6 = 180° ⇒ true

# m∠ 2 + m∠ 4 = m∠ 5

∵ In any Δ, the measure of the exterior angle at one vertex of the

  triangle equals the sum of the measures of the opposite interior

  angles of this vertex

∵ ∠ 5 is the exterior angle of the vertex of ∠ 6

∵ ∠2 and ∠ 4 are the opposite interior angles to ∠ 6

∴ m∠ 2 + m∠ 4 = m∠ 5 ⇒ true

# m∠1 + m∠2 = 90°

∵ ∠ 1 and ∠ 2 formed a straight angle

∵ The measure of the straight angle is 180°

∴ m∠1 + m∠2 = 90° ⇒ Not true

# m∠4 + m∠6 = m∠2

∵ ∠ 4 , ∠ 6 , ∠ 2 are the interior angles of a triangle

∵ There is no given about their measures

∴ We can not says that the sum of the measures of ∠ 4 and ∠ 6 is

  equal to the measure of ∠ 2

∴ m∠4 + m∠6 = m∠2 ⇒ Not true

# m∠2 + m∠6 = m∠5

∵ ∠ 5 is the exterior angle at the vertex of ∠ 6

∴ m∠ 2 + m∠ 6 = m∠ 5 ⇒ Not true

Answer: A,B,C. OR 1,2,3

Step-by-step explanation:

Narine is solving the equation √3q=6 for q. Her work is shown

A=6
B=2

A=9
B=3

A=12
B=4

A=36
B=12

Answers

Answer:

3q = 36

q = 12

Step-by-step explanation:

Just work out the steps and compare to the choices

√(3q) = 6

[√(3q)]² = 6²

3q = 36  (Answer)

q = 36/3 = 12 (Answer)

A=36 and B=12 is the required steps for the equation √3q=6 given that 3q=A and q=B. This can be obtained by finding the remaining steps for finding q.

What is the required answer?

Given that √3q=6

              (√3q)²=6²

                   3q = 6×6 = 36 ⇒ A = 36 (squaring both sides)

                     q = 36/3 = 12 ⇒ B = 12 (divide both sides by 3)

Hence A=36 and B=12 is the required steps for the equation √3q=6 given that 3q=A and q=B.

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Sarah was 50 1/4 in tall and she was 12 years old she was 4 and 1/2 inches tall when she was 11 years old how much did she grow during the year​

Answers

The answer is 45 3/4 inches

If p and q prime number greater than 2which of the following is not even integer ? a.p+q b.p×q c.p^2-q^2 d.p-q​

Answers

B, because every prime number greater than 2 is odd, and the product of two odd numbers is odd.

Answer: I'm pretty sure its B

Step-by-step explanation:

..

1 Point
Which of the following equations represents a line that is parallel to y = 5x - 4
and passes through the point, (3, 4)?

Answers

Answer:

y = 5x - 11

Step-by-step explanation:

[tex]\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\==============================[/tex]

[tex]\text{We have the equation:}\ y=5x-4\to m_1=5.\\\\\text{Therefore}\ m_2=5.\\\\\text{We have the equation:}\ y=5x+b.\\\\\text{Put the coordinates of the given point (3, 4) to the equation:}\\\\4=5(3)+b\\\\4=15+b\qquad\text{subtract 15 from both sides}\\\\-11=b\to b=-11\\\\\text{Finally:}\\\\y=5x-11[/tex]

Van was asked to add 46 to 37 and round the result to the nearest ten. He figured that since he was going to have to round anyway, he might as well do it before adding the numbers. He rounded 46 to 50 and 37 to 40, thus getting an answer of 50+40=90. This answer is not correct. What is the correct answer?

Answers

Answer:

80

Explanation:

46 + 37 = 83 so 83 rounded to the nearest 10 is 80

Answer:

80

Step-by-step explanation:

46+37 = 83

Rounding to the nearest ten

80

If f(x) = -x^2 + 6x - 1 and g(x) = 3x^2 - 4x - 1, find (f + g)(x).
O A. (f+g)(x) = 2x2 + 2x - 2
B. (f+g)(x) = 4154x2 + 10x
O C. (f+g)(x) = 2x2 - 10x
O D. (f+g)(x) = 4x2 + 10x + 2

Answers

[tex]

f(x)=-x^2+6x-1 \\

g(x)=3x^2-4x-1 \\

f(x)+g(x)=-x^2+6x-1+3x^2-4x-1=\boxed{2x^2+2x-2}

[/tex]

The answer is A.

Hope this helps.

r3t40

What is the equation of the following line? Be sure to scroll down first to see
all answer options.

Answers

Answer:

I'm pretty sure its A

Step-by-step explanation:

To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .

Answer:

Option: A is the correct answer:

                     [tex]A.\ y=-3x[/tex]

Step-by-step explanation:

The equation of a line passing through two points (a,b) and (c,d) is calculated with the help of a two-point formula:

[tex]y-b=\dfrac{d-b}{c-a}\times (x-a)[/tex]

Based on the graph we observe that the line passes through:

(0,0) and (3,-9)

i.e. we have: (a,b)=(0,0) and (c,d)=(3,-9)

i.e. the equation of line is given by:

[tex]y-0=\dfrac{-9-0}{3-0}\times (x-0)\\\\i.e.\\\\y=\dfrac{-9}{3}\times x\\\\i.e.\\\\y=-3x[/tex]

          The answer is: Option: A

2. Find the next three terms in the sequence.
2.5, 5, 10, 20, ...
A 40, 80, 160
B 25, 30, 35
C 50, 100, 200
D 30, 40, 50

Answers

Answer:

A 40, 80, 160

Step-by-step explanation:

Given:

2.5, 5, 10, 20, ...

geometric sequence has a constant ratio r and is given by

an=a1r(r)^(n-1)

where

an=nth term

r=common ratio

n=number of term

a1=first term

In given series:

a1=2.5

r= a(n+1)/an

r=5/2.5

r=2

Now computing next term a5

a5=a1(r)^(n-1)

   = 2.5(2)^(4)

   = 40

a6=a1(r)^(n-1)

   = 2.5(2)^(5)

   =80

a7=a1(r)^(n-1)

   = 2.5(2)^(6)

   =160

So the sequence now is 2.5, 5, 10, 20,40, 80, 160!

A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the smaller number. Which equations represent the situation?

Answers

Answer:

A.

Step-by-step explanation:

NOTE: The "larger number" will be referred to as y, and the "smaller number" will be referred to as x.

"A number, y, is equal to twice the sum of a smaller number and 3."

This tells us that we must add our smaller number (x) to 3 within parantheses and then multiply the entire term (x+3) by 2.

[tex]y=2(x+3)[/tex]

"The larger number is also equal to 5 more than 3 times the smaller number."

This tells us that we must multiply 3 against our smaller number (x) and add 5 to it.

[tex]y=3x+5[/tex]

Now, to find your answer, we can put the equations in the same form as the answer choices so as to find an equivalent equation. Lets start with the first equation.

This form calls for us to have our x term first, then our y term, then our constant.

[tex]y=2(x+3)\\y=2x+6\\-2x+y=6[/tex]

Now that we've gotten the equation in that form, we can see that our answer choices hold that our leading co-efficient must be positive, which we can adjust for by dividing both sides by -1.

[tex]-2x+y=6\\2x-y=-6[/tex]

This makes the only possible answer choices (A) and (C).

Now, lets do our second equation. The recipe calls for the same form, again with a positive leading coefficient.

[tex]y=3x+5\\-3x+y=5\\3x-y=-5[/tex]

This is only represented by choices (A) and (B).

Therefore, answer choice (A) is the only one which represents both equations.

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