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3 years ago

15 POINTS PLEASE HELP!!!

Mathematics

1 answer:

julia-pushkina [17]3 years ago

8 0

It is the third one because if (gof) is gjudjgui8dfghdgdihhhdghgd

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Caroline earns $54 babysitting for 6 hours

Lady_Fox [76]

It would be $9 per hour all you have to do is divide 54 by 6 you get 9, unit rate is 1

I hope this helps

6 0

2 years ago

write an equation of the perpendicular bisector of the line segment whose endpoints are (-1,1) and (7,-5)

gladu [14]

Find midpoint of segment.
(-1,1), (7,-5)
$x= \frac{-1+7}{2}=3,y= \frac{1+(-5)}{2}=-2$

Find slope of line which passes through (-1,1) and (7,-5).
$m= \frac{-5-1}{7-(-1)}= \frac{-6}{8}=- \frac{3}{4}$

The slope of perpendicular line is negative reciprocal value of m.
$m_{\perp}=- \frac{1}{m} =- \frac{1}{- \frac{3}{4} } = \frac{4}{3}$

Write quation of line which slope is $\frac{4}{3}$ and passes throug the point (3,-2).
$m=\frac{4}{3},x_1=3,y_1=-2
\\y-y_1=m(x-x_1)
\\
\\y-(-2)=\frac{4}{3}(x-3)
\\
\\y+2=\frac{4}{3}x-\frac{8}{3}
\\
\\3y+6=4x-8
\\4x-3y-14=0$

3 0

2 years ago

Ms. Simpson gives her class the following problem:Simplify: 3 (x-2) + 6x. Mikey

Schach [20]

Answer:

first off, when did Marge become a teacher

Step-by-step explanation:

Second off, he didn't flip the sign inside of the parentheses.

3 0

2 years ago

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Write an equation of a line in slope-intercept form with a slope of -12 and a y-intercept of 3.

Mila [183]

Answer:

y = -12x + 3

Step-by-step explanation:

The slope-intercept form of an equation can be written as y = mx + b where m is the slope and b is the y-intercept. We are given both values, so we can plug them into the equation to get:

y = mx + b

y = -12x + 3

5 0

2 years ago

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Find the greatest common factor of <br>21<br><br>

castortr0y [4]

Answer:

to find a GCF you need 2 numbers. You only have one here

Step-by-step explanation:

7 0

2 years ago

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