solve the system using elimination 3x+2y=17 and 2x+5y=26

Answer:

+1

Step-by-step explanation:

The y-intercept is +1.

Answer:

Basically when you use parantheses it protects that number from becoming negative...

-10^2 is -100 but with paranthesis is 100

Answer:

without the parenthesis it would just be 100 but with it, it would be -100 :)

Answer:

x=8, y=-7. (8, -7).

Step-by-step explanation:

2x-y=23

x-9=-1

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

x=-1+9=8

x=8

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

2(8)-y=23

16-y=23

y=16-23=-7

x=8, y=-7. (8, -7).

Answer:

$32

Step-by-step explanation:

The money she spent was $5 on the kitten and if you add $5 to the remaining $27 that is $32

Current amount that Penny have is $32.

Calculate the answer using a math operator is referred to as a mathematical operation.

Basic mathematical operations are addition, multiplication, subtraction and division.

Given that,

The amount that Penny have after  = $27.

Also, Penny pays $5 for her new kitten.

Since, amount $27 remains after paying $5.

So initial amount should more than $5.

The amount = current amount + amount paid for kitten

                              = 27 + 5

                              = 32

The required amount that Penny have = $32.

To learn more about Mathematical operations on :

https://brainly.com/question/22469627

#SPJ2

Answer:

The number of students who have a test score in the interval 71-80 is 13.

Step-by-step explanation:

Given:

The frequency chart which show the cumulative numbers of students test scores.

Now, to find the number of students who score in the interval 71-80, we will look in the frequency chart. In the chart score range of 65-80 the cumulative number of students are 13. As the 71 to 80 comes in between the score range 65-80 and there are 13 students who scored in this range.

Therefore, the number of students who have a test score in the interval 71-80 is 13.

Answer:

5,070

Step-by-step explanation:

Answer:

5069.0

Step-by-step explanation:

The tenth value is the value directly after the decimal point. In this case, the number given is a whole number, and so to find the tenth place value, add a decimal point and a 0 to the back.

~

Answer:

C) -5 -1/8

Step-by-step explanation:

You need to use the distributive property.

1) ( - 1/2 x 10 ) + ( - 1/2 x 1/4 )

2) 10 / -2 = -5, and -1/2 x 1/4 = -1/8

3) Make them into one equation. -5 - 1/8 is the same as - 1/2 ( 10 + 1/4 )

Final answer:

The equivalent expression to -1/2(10 + 1/4) is -5 - 1/8. Simplify the expression by distributing the -1/2 and combining the results.

Explanation:

The expression given is: -1/2(10 + 1/4)

To simplify this expression:

Distribute the -1/2: -1/2 * 10 = -5 and -1/2 * 1/4 = -1/8

Combine the results: -5 - 1/8

Therefore, the equivalent expression is: -5 - 1/8 (Option B)

Answer: x= -25

Step-by-step explanation:

Answer:

x=-25

Step-by-step explanation:

x/5 = 8 = 3 you would multiply both sides by 5

youd end up with x+40=15 then you would move the constan to the right

x=15-40 you would subtract 40 from 15

x=-25

1. The definition of a function is based on the concept of a mapping from one set to another, where each element in the domain has a unique image in the range. This is a fundamental concept in mathematics and is used to describe relationships that are deterministic in nature.

2. To determine if a set of ordered pairs is a function, one must ensure that no two ordered pairs have the same first component (x-value) and different second components (y-values). This is known as the vertical line test. If a vertical line can be drawn that intersects the graph of the relation at more than one point, then the relation is not a function.

3. The slope-intercept form is a standard form for linear equations that is particularly useful for graphing lines and for understanding the slope and y-intercept of the line. It is derived from the general form of a linear equation, y = mx + b, where m represents the slope and b represents the y-intercept.

4. In the given equation y = -2x + 6, the coefficient of x represents the slope, which is -2, indicating that for every 1 unit increase in x, y decreases by 2 units. The constant term, 6, represents the y-intercept, which is the value of y when x = 0.

5. A horizontal line has a slope of zero because there is no change in the y-value as the x-value changes. Thus, the slope, which is the ratio of the change in y to the change in x, is zero. The equation of a horizontal line is simply y = b, where b is the y-value of every point on the line.

A vertical line has an undefined slope because the change in x is zero (since x does not change), and division by zero is undefined in mathematics. The equation of a vertical line is x = a, where a is the constant x-value for every point on the line.

Answer:

The correct answer is C. 0.033/2

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Annual interest rate = 3.3% compounded semiannually

2. Let's find the exact value of the rate:

Number of periods (n) = n/2, given that periods are semesters and not years

Annual interest rate (r) = 3.3% = 3.3/ 100 = 0.033

For using the correct value in the present value annuity formula, we also have to divide the annual interest rate because the interest is compounded semiannually or every six months, what it means:

0.033/2

The correct answer is C. 0.033/2

c. [tex]\frac{0.033}{2}[/tex]

on edgen

Answer:

Here are 3

Step-by-step explanation:

Are a U.S. citizen.

Meet your state's residency requirements.

Are 18 years old on or before Election Day.

Answer:

bro in Ur pictures there is no 7-10

Step-by-step explanation:

10-7 is 3 right so 7-10 is -3 it simple . but show me questions again because there is no 7-10 . Thank for ur asking me !

The product of two square roots is equal to the square root of the product, so the product of √y3 and √y3 is y3.

The equation is asking you to multiply the square root of y cubed by itself.

Based on the properties of square roots, if you multiply the square root of a number by itself, you get the original number.

This is because multiplication is the inverse operation for square roots. Meaning, it undoes the square root.

So, in this scenario, you are multiplying [tex]\sqrt{y^{3} }[/tex] * [tex]\sqrt{y^{3} }[/tex]which results in y^3.

Thus, the product of [tex]\sqrt{y^{3} }[/tex] and  [tex]\sqrt{y^{3} }[/tex]is y^3, assuming y≥0.

Learn more about Square Roots here:

https://brainly.com/question/3120622

#SPJ2

Answer:

The length of the sailboat is 80 feet.

Step-by-step explanation:

The function  

[tex]s(l) = 1.34 \sqrt{l}[/tex] ................ (1)  

models the maximum speed s in knots for a sailboat with length l in feet at the waterline.

So, using this model we have to find the length of a sailboat with a maximum speed of 12 knots.

Now, from equation (1) we get

[tex]12 = 1.34 \sqrt{l}[/tex]

⇒ [tex]\sqrt{l} = 8.955[/tex]

⇒ [tex]l = (8.955)^{2}  = 80[/tex] feet (Answer)

{The value is round to the nearest foot}

Answer:

[tex]f(x)=x-5[/tex]

Step-by-step explanation:

step 1

Find the slope m

The formula to calculate the slope between two points is equal to

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

we have the ordered pairs

(10,5) and (2,-3)

substitute the values

[tex]m=\frac{-3-5}{2-10}[/tex]

[tex]m=\frac{-8}{-8}[/tex]

[tex]m=1[/tex]

step 2

Find the equation of the line in slope intercept form

[tex]f(x)=mx+b[/tex]

we have

[tex]m=1[/tex]

[tex]point\ (10,5)[/tex]

substitute and solve for b

[tex]5=(1)(10)+b[/tex]

[tex]5=10+b[/tex]

[tex]b=-5[/tex]

The linear function is equal to

[tex]f(x)=x-5[/tex]

The linear function with the values [tex]f(10)=5[/tex] and [tex]f(2)=-3[/tex] is [tex]f(x)=x-5[/tex].

Step-by-step explanation:

Given information:

The values of a liner function

[tex]f(10)=5[/tex]

and

[tex]f(2)=-3[/tex]

So, we can write the slope as:

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\[/tex]

On, putting the values:

[tex]m=\frac{-3-5}{2-10} \\m=1[/tex]

Point (10,5)

Now ,substitute the values in the linear equation:

[tex]\text {y=mx+b}[/tex]

where, m is the slope.

[tex]5=1 \times 10 + \text b\\\text b=-5[/tex]

Now put the values to get the required linear function.

So, the linear function with the values  [tex]f(10)=5[/tex] and [tex]f(2)=-3[/tex] will be [tex]f(x)=x-5\\[/tex]

For more information visit:

https://brainly.com/question/21107621?referrer=searchResults

Step-by-step explanation:

3B+b=_5+12+1

4Bb=8

4Bb/4=8/4

Bb=2

Answer:

B = 2

Step-by-step explanation:

To solve the linear equation;

- 12 + 3B -1 = -5 - B

we will first collect like-term that is; we will make all the B variables to be on the left-hand side of the equation and all the constant to be on the right-hand side of the equation

( when -B cross over to the left-hand side of the equation,  B becomes positive, when -12 and -1 cross over to the right-hand side of the equation, they become positive 12 and 1)

3B + B  =   -5  +  12 + 1

4B   =  8

Divide both-side of the equation by 4 to get the value of B

4B/4  =  8/4

(on the left-hand side of the equation ,4 will cancel out 4 leaving us with B and 8 will be divided by 4 to give us 2)

B =  2

Therefore the solution to the linear of the equation is B = 2

Answer:

[tex]a_n = 8n+8[/tex] represent the sequence 16,24,32,40...

Step-by-step explanation:

The sequence given is

16,24,32,40.

And the options given are

an=4n+1

an=8n+8

an=8n+16

We will check for all so as to find the correct expression.

In the given sequence the first term is 16,

i.e a1 = 16

1). We will check for an = 4n+1 whether the first term is 16 or not.

We will put the value of n as 1;

[tex]a_1= 4\times1+1= 4+1=5[/tex]

With this option we get the first term as 5 but in the given sequence first term is 16.

Hence this option is Incorrect.

2). We will check for an = 8n+8 whether the first term is 16 or not.

We will put the value of n as 1;

[tex]a_1= 8\times1+8= 8+8=16[/tex]

With this option we get the first term as 16 and in the given sequence also first term is 16.

Hence this option is correct.

3). We will check for an = 8n+16 whether the first term is 16 or not.

We will put the value of n as 1;

[tex]a_1= 8\times1+16= 8+16=24[/tex]

With this option we get the first term as 24 but in the given sequence first term is 16.

Hence this option is Incorrect.

Hence we can say that an = 8n+8 represent the sequence 16,24,32,40...

The problem involves applying the concept of percentage. By using the given data, we find that 70 sixth graders went on the museum trip.

The subject of this problem is percentage and its application in a real-world situation. The problem stated that 70% of the sixth graders chose to go to the museum. As there are 100 sixth graders, to calculate the number of students who went on the museum trip, you would use the formula percentage/100 x total number.

So, 70/100 x 100 = 70 sixth graders. Hence, 70 sixth-graders from Sarah's school went on the field trip to the museum.

https://brainly.com/question/30697911

#SPJ2

Answer:

Part A) The linear expression that represent the total field goal points scored in the first two quarters is (3x-4)

part B) The linear expression that represent the total points scored in the game is [tex]6x-1[/tex]

Step-by-step explanation:

Part A) we know that

To find out the total field goal points scored in the first two quarters, sum the field goal points scored in the first quarter plus the field goal points scored in the second quarter

we have that

1st quarter= 2x-6

2nd quarter = x+2

therefore

[tex](2x-6)+(x+2)[/tex]

Group terms

[tex](2x+x)+(-6+2)[/tex]

Combine like terms

[tex]3x-4[/tex]

therefore

The linear expression that represent the total field goal points scored in the first two quarters is (3x-4)

Part B) we know that

To find out the total points scored in the game, sum the field goal points scored in the first quarter, plus the field goal points scored in the second quarter plus the field goal points scored in the third quarter, plus the field goal points scored in the fourth  quarter, plus the total free throw points.

we have that

1st quarter= 2x-6

2nd quarter = x+2

3rd quarter=2x

4th quarter=x-6

Free throw points =9

therefore

[tex](2x-6)+(x+2)+2x+(x-6)+9[/tex]

Group terms

[tex](2x+x+2x+x)+(-6+2-6+9)[/tex]

Combine like terms

[tex]6x-1[/tex]

therefore

The linear expression that represent the total points scored in the game is [tex]6x-1[/tex]

Answer: m=34

Step-by-step explanation:

11+m=-23

add 23 on both sides

m=34

Answer:

A) (x-1)^2+(y+4)^2=4

Step-by-step explanation:

Here's the equation of a circle with center and radius:

(x-h)^2+(y-k)^2=r^2 with the center being at the point (h, k)

and the radius being r.

(x-1)^2+(y-(-4))^2=2^2

(x-1)^2+(y+4)^2=4

The equation of a circle with center (1, -4) and radius 2 is (x-1)²+(y+4)²=4

The correct option is (A).

The equation of circle represents the locus of point whose distance from a fixed point is a constant value. This fixed point is called the center of the circle and the constant value is the radius of the circle.

The standard equation of circle with center at (x1,y1)  and radius r is (x−x1)²+(y−y1)²=r².

We know equation of circle,

(x-a)²+(y-b)²=r²

Here, a=1, b=-4 and r=2

So,

(x-1)²+(y-(-4))²= 2²

(x-1)²+(y+4)²=4

Hence, the equation of circle is: (x-1)²+(y+4)²=4

Learn more about equation of circle here:

https://brainly.com/question/10618691

#SPJ5

Answer:

8

Step-by-step explanation:

The discriminant of ax² + bx + c = 0 is b² − 4ac.

Here, a = -1, b = 4, and c = -2.

b² − 4ac

(4)² − 4(-1)(-2)

16 − 8

8

Answer:

X=-2

Step-by-step explanation:

PLUG IT IN HTE EQUATION BRAINLIEST PLZZZ

Answer:

x = - 2

Step-by-step explanation:

Given

2x - (4x - 4) = 16 - 8 = 8 ← distribute parenthesis and simplify left side

2x - 4x + 4 = 8

- 2x + 4 = 8 ( subtract 4 from both sides )

- 2x = 4 ( divide both sides by - 2 )

x = - 2

Answer:

cdsnvj;vs

Step-by-step explanation:

Each van carried 18 students and each bus carried 59 students.

Step-by-step explanation:

Let,

students carried by one van = x

students carried by one bus = y

According to given statement;

x+6y=372   Eqn 1

4x+12y=780   Eqn 2

Multiplying Eqn 1 by 4

[tex]4(x+6y=372)\\4x+24y=1488\ \ \ Eqn\ 3[/tex]

Subtracting Eqn 2 from Eqn 3

[tex](4x+24y)-(4x+12y)=1488-780\\4x+24y-4x-12y=708\\12y=708[/tex]

Dividing both sides by 12

[tex]\frac{12y}{12}=\frac{708}{12}\\y=59[/tex]

Putting y=59 in Eqn 1

[tex]x+6(59)=372\\x+354=372\\x=372-354\\x=18[/tex]

Each van carried 18 students and each bus carried 59 students.

Keywords: Linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

Each van carried 18 students and each bus carried 59 students.

Step-by-step explanation:

Let,

students carried by one van = x

students carried by one bus = y

According to given statement;

x+6y=372 Eqn 1

4x+12y=780 Eqn 2

Multiplying Eqn 1 by 4

Subtracting Eqn 2 from Eqn 3

Dividing both sides by 12

Putting y=59 in Eqn 1

Answer:

the radio of the Numbers of toucans to the Numbers of parrots at the zoo is 1:4

Step-by-step explanation:

For each toucan there are 4 parrots

15/60 = 1/4

Answer: 1:4

Step-by-step explanation: the answer would be 1:4.

Answer:

C)

Step-by-step explanation:

The third graph represents this system.

Answer:

Graph C

Step-by-step explanation:

Thinking process:

The are two ways to solve the system:

1. the substitution method:

for equation (1) y = 1/2x + 3

when x = 0, y = 3

when y = 0, x = -6

for equation (2) y = 3/2x - 1

when x= 0; y = -1

when y = 0; x = 2/3

this gives line C

2. another way to solve the simultaneous equations:

y = 1/2x + 3  ...1

y = 3/2x - 1    ...2

substuting (1) into  (2)

3/2x - 1 = 1/2x + 3

x = 4

substituting x = 4 into (1):

y = 1/2x + 3

y = 1/2(4)+ 3

  = 5

the point of intersection will be (4 , 5) which is line c

Either method works.

Answer:

$256

Step-by-step explanation:

Each class got $256. I know this because I did 3,840 divided by 15 which got me the CORRECT answer of $256

Answer:

$256

Step-by-step explanation:

if there was $3840 donated and theres 15 classes that need to get an even amount so you would do 3840÷15 to see how many times 15 can go in to 3840 to find the even amount of money each class should recieve which is $256

Answer:

Option C. [tex]25\pi\ ft^{2}[/tex]

Step-by-step explanation:

The complete question is

The diameter of Jim’s circular flower bed is 10 feet. What is the area, in square feet, of Jim’s flower bed?

A) 10π

B) 20π

C) 25π

D) 100π

we know that

The area of a circle (Jim's circular flower bed) is equal to

[tex]A=\pi r^{2}[/tex]

where

r is the radius of the circle

we have

[tex]r=10/2=5\ ft[/tex] ----> the radius is half the diameter

substitute

[tex]A=\pi (5)^{2}[/tex]

[tex]A=25\pi\ ft^{2}[/tex]