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3 years ago

What is the slope of y=-4x+8

Mathematics

1 answer:

Gwar [14]3 years ago

8 0

for y=mx+b, m is slope

given y=-4x+8, -4=m=slope

slope is -4

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How many 4/5 cups servings are in 2/5 of a cup of ice cream? ( in simplest fraction from)

Nutka1998 [239]

I Think the answer is B

4 0

3 years ago

What is the perimeter of the trapezoid?

Nikolay [14]

Answer:

Step-by-step explanation:

8x8=64

1/2(8x6)=24

64+24=88

7 0

3 years ago

22. Determine the value of c so that the line

tiny-mole [99]

Answer:

If the lines BC and DE are parallel, the value of c is c=-2

Step-by-step explanation:

We are given line segment BC with end points B(2, 2) and C(9,6) and line segment DE with endpoints D(c, -7) and E(5, -3).

Using slope formula: $Slope=\frac{y_2-y_1}{x_2-x_1}$ we can find point c

When 2 lines are parallel there slope is same.

So, Slope of line BC =Slope of Line DE

$\frac{y_2-y_1}{x_2-x_1}=\frac{y_2-y_1}{x_2-x_1}$

We have:

$x_1=2, y_1=2, x_2=9, y_2=6 \ for \ line \ BC \ and \\\x_1=c, y_1=-7, x_2=5, y_2=-3 \ for \ line \ DE \$

Putting values and finding c

$\frac{6-2}{9-2}=\frac{-3-(-7)}{5-c}\\ \frac{4}{7}=\frac{-3+7}{5-c} \\ \frac{4}{7}=\frac{4}{5-c} \\Cross \ multiply:\\4(5-c)=4*7\\20-4c=28\\-4c=28-20\\-4c=8\\c=\frac{8}{-4}\\c=-2$

So, If the lines BC and DE are parallel, the value of c is c=-2

8 0

3 years ago

Combine like terms in the following equation:<br> 18 – 5W + 7w - 4 = 28

pishuonlain [190]

Answer:

Step-by-step explanation:

Step 1:

18 - 5w + 7w - 4 = 28

Step 2:

14 + 2w = 28

Step 3:

2w = 14

Answer:

w = 7

Hope This Helps :)

6 0

3 years ago

Read 2 more answers

A circle has a circumference of 10 pi what is the length of the radius

Talja [164]

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Formula
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Circumference = πD

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Find Diameter
------------------------------------------------------
10π = πD
D = 10 ← divide by π on both sides

------------------------------------------------------
Find Radius
------------------------------------------------------
Radius = Diameter ÷ 2
Radius = 10 ÷ 2
Radius = 5

------------------------------------------------------
Answer: Radius = 5 units
------------------------------------------------------

3 0

3 years ago