Use the substitution method to solve each linear system. X - 2y = 7, y = - X + 1

Answer:

3.36 quarts of paint

Step-by-step explanation:

In this question, we're trying to find how much paint she will need to cover the night stand.

First, we need to find the area.

Solve for the area (rectangle = l * w):

42 · 28 = 1176

Now, we know that 1 quart of paint covers 350 square inches.

To find how much paint she needs, divide 1176 by 350:

1176/350 = 3.36

This means that she needs 3.36 quarts of paint to cover her whole nightstand.

Answer: 27, 60, 900, 987

Step-by-step explanation:

329

*   3

----------

   27

   60

900

--------.

987

Answer:

b. expository

Step-by-step explanation:

Answer:

c. expository

Step-by-step explanation:

Answer:

588

Step-by-step explanation:

Answer

The length of the hypotenuse is 35 feet.

Explanation

This is the formula to find the hypotenuse.

[tex]l^{2} + l^{2} = h^{2}[/tex]

One leg is 21 feet. The other is 28 feet. Now insert those into the formula.

[tex]21^{2} + 28^{2} = h^{2}[/tex]

[tex]h^{2}=1225[/tex]

Now to find what h is you should find the square root of 1225.

[tex]\sqrt{1225} =35[/tex]

So the length of the hypotenuse is 35 feet.

Answer:

Step-by-step explanation:

8n - 9 = 7

8n = 16

n = 2

Answer:

352/9

Step-by-step explanation:

Answer:

12.5663

Step-by-step explanation:

circumference = pi x diameter

d= 2r

d = (2)2

d=4

c=4pi

c=12.5663

Answer:

Option D : 12.56 km

........!

Answer:

22 cm

Step-by-step explanation:

Answer:

so the problem is 3ab-c^2 / c

switch a with 14, switch b with 3, and switch c with 7

it should look like this

3(14)(3)-(7)^2/(7)

the answer is 11

Step-by-step explanation:

hope it helps

See attachment for math work and answer.

I made a slight error in my first reply. The answer is 11 not -23/7. I apologize for the error made.

Answer:

y=-3/4x+1/4

Step-by-step explanation:

This is the concept of equations of graphs; We are required to calculate for the equation if the line that is perpendicular to the line 4x-3y=-8 and passes through point (3,-2).

Here we proceed as follows;

4x-3y=-8 can be written in he form y=mx+c as follows;

-3y=-4x-8

thus;

y=4/3x+8/3

The slope of the line perpendicular to this is -3/4. Thus using point (3,-2) the equation will be as follows;

-3/4=(y--2)/(x-3)

-3/4(x-3)=y+2

y+2=-3/4(x-3)

y+2=-3/4x+9/4

thus;

y=-3/4x+1/4

the answer is:

y=-3/4x+1/4

Answer:

6 2/3 minutes

Step-by-step explanation:

Amare runs 1/10 mile in 2/3 minutes

Therefore his speed in miles per minutes clean be calculated as follows

= 1/10, the denominator here is 10

= 10 × 2/3

= 20/3

= 6 2/3 minutes

Answer:

12.5 and 7.5

Step-by-step explanation:

If the volume is 804 yd^3 then the side length is 9.3m

Answer:

b bbb bbhdixbxidndidjd

Answer:

A. 22.75 divided by 7 which would equal 3.25 B. the answer would be 3.25 for each cat toy

Step-by-step explanation:

Answer:

1. C

2.

Step-by-step explanation:

1. 1/3×7=7/3

3√7=2/1/3

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

Find f(-5) by substituting x = -5 in the equation.

[tex]f(-5)=2(-5)^2+6(-5)-4\\f(-5)=2(25)-30-4\\f(-5)=50-34\\f(-5)=16[/tex]

Therefore, the answer is f(-5) = 16

Answer:

f(-5)=126

Step-by-step explanation:

what you would do first is plug -5 in for x which would give you the equation of f(-5)= 2(-5)^2 + 6(-5) -4

then you multiply the negative 5 and you will get

f(-5)= -10^2 + 30 -4

remove that square by multiplying -10 by -10 and you will get

f(-5)= 100 + 30 -4

combine like terms and you will get

f(-5)=126

i hope this helped you and that i explained it to you in a way that you understand

Answer:2 max because exponet

Answer:

X = 0 or X = -4

Step-by-step explanation:

4X(X + 4) = 0​

4 = 0 or X = 0 or X + 4 = 0

Since 4 = 0 is false, we eliminate that equation.

X = 0 or X + 4 = 0

X = 0 or X = -4

Answer:

Half of 1/8 is 4/8 so he can cut 4 slices which would be half of a pound and that how heavy the apple is.

Hope this helps:)

Please mark brainliest

Answer:

YZ is located at Y (0, 1) and Z (-2, 1) and is one-third the size of Y'Z'.

Step-by-step explanation:

Since Y'Z' was dilated from the origin at a scale factor of 3, you can divide its X and Y coordinates by 3 to find the coordinates of YZ.

The statement fourth "segment YZ is located at Y (0, 1) and Z (−2, 1) and is one-third the size of segment Y prime Z prime" is correct.

The transformation dilation is used to resize an item. Dilation is a technique for making items appear larger or smaller. The image created by this transformation is identical to the original shape.

The question is incomplete.

The complete question is:

Segment Y prime Z prime has endpoints located at Y'(0, 3) and Z'(−6, 3). segment YZ was dilated at a scale factor of 3 from the origin. Which statement describes the pre-image?

As we know, in the dilation image of the two-dimensional figure can be larger or smaller depending on the dilation factor.

We have:
segment Y prime Z prime has endpoints located at Y'(0, 3) and Z'(−6, 3).

After dilation:

Y (0, 1) and Z (−2, 1)

Thus, the statement fourth "segment YZ is located at Y (0, 1) and Z (−2, 1) and is one-third the size of segment Y prime Z prime" is correct.

Learn more about the dilation here:

brainly.com/question/13176891

#SPJ5

Answer:

1.5 cookies if 2/8 is like 2 cookies out of 8, 1/16 if its like 2/8 of a cookie

Step-by-step explanation: \

1.5: 2 x 3/4 (already ate 1/4) = 1.5

1/16= 1/4 (2/8 reduced)  x 1/4

Answer:

Answer below. Hope this helped, Have a Great Day!!

Step-by-step explanation:

flip the 2x to the other side of the ( = )

y=8-2x

Divide by Y

y=-2x+8

slope: -2x

y-intercept: 8

Answer:

15 pints

Step-by-step explanation:

9 / 3 = 3

3 x 2 = 6

9 + 6 = 15

Answer: 2(3 x + 5)

Explination: 2(3x) = 6x which is also 3 + 3

2(5) = 10 which is also 5+5

Hope this helps :)

Step-by-step explanation:

Area of triangle=1/2×base×Height

105=1/2×15×h

210=15×h

h=14inches