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3 years ago

You paint 1/2 wall in 1/4hour At that rate how long will it take you to paint one wall

Mathematics

1 answer:

3241004551 [841]3 years ago

8 0

Answer:

half hour

Step-by-step explanation:

Do 1 fourth times two

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What is the equation of the following line written in slope-intercept form -2/3 and -1/-4? y = -11x - 7 y = -7x + 11 y = -7x - 1

Snowcat [4.5K]

Answer:

$y=-7x-11$

Step-by-step explanation:

Given:

The two points on the line are $(-2,3)$ and $(-1,-4)$ .

The slope of the line joining two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

$Slope,m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Here, $x_{1}=-2,y_{1}=3,x_{2}=-1,y_{2}=-4$

∴ $m=\frac{-3-4}{-1-(-2)}=\frac{-7}{-1+2}=\frac{-7}{1}=-7$

Equation of line with a point $(x_{1},y_{1})$ and slope $m$ is given as:

$y-y_{1}=m(x-x_{1})$

Plug in -2 for $x_{1}$ , 3 for $y_{1}$ and -7 for $m$ . This gives,

$y-3=-7(x-(-2))\\y-3=-7(x+2)\\y-3=-7x-(7\times 2)\\y-3=-7x-14\\y=-7x-14+3\\y=-7x-11$

Therefore, the equation of the line in vertex form is $y=-7x-11$ .

4 0

3 years ago

Someone plz help me

marusya05 [52]

This is a parabola which looks like an inverted U. Its will have a maximum value when t = 7 as we see from the vertex form below:-

- t^2 + 14t - 40
= - ( t - 7)^2 + 49 - 40
= -(t - 7)^2 + 9

There is an axis of symmetry at x = 7.

so a is true since 7 is the maximum value of the function and its less at t = 6.
c is also true because of the symmetry about t = 7

8 0

3 years ago

Which equation represents a line with a y intercept of -5 and a slope of 2/3

Len [333]

Answer:

Step-by-step explanation:

you dont need a explanation do you

3 0

2 years ago

M = 6<br> ---<br> 3<br><br> What does m =

posledela

M is equal to 18
6*3=M
18=M