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atroni [7]
3 years ago
12

Can somebody please help me because im going to freak out

Mathematics
1 answer:
steposvetlana [31]3 years ago
6 0

Answer:

-1 is not correct

1 is the correct answer

Step-by-step explanation:

Her mistake was adding a negative sign in the one

The right way is to cross out one negative symbol between the two parentheses

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Find the slope of the line that is parallel and perpendicular <br><br> -7x-2y=4
Rus_ich [418]

\bf -7x-2y=4\implies -2y=7x+4\implies y=\cfrac{7x+4}{-2}\implies y=\cfrac{7x}{-2}+\cfrac{4}{-2} \\\\\\ y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{7}{2}} x-2\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill

\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{7}{2}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{2}{7}}\qquad \stackrel{negative~reciprocal}{\cfrac{2}{7}}}

now, what's the slope of a line parallel to that one above?  well, parallel lines have exactly the same slope.

5 0
3 years ago
PLZ HELP
anastassius [24]

Answer:

A' (2,-3)

B' (5,-5)

C' (5,-2)

D' (7,-3)

Step-by-step explanation:

I used desmos graphing calculator to help me solve

8 0
3 years ago
Miller has a painting that is 4 ft by 8 ft. What will the dimensions of the painting be if he scales it down by a factor of one-
natta225 [31]
The answer is C) 1 ft by 2 ft
You can take 4*0.25 and 8*0.25
You end up with 1 by 2
8 0
3 years ago
Read 2 more answers
I’ll bet you nobody’s not gonna answer this question
Arisa [49]

Answer:

Lol this is my first time seeing someone saying I bet no one will answer this. Ok coming back to the topic answers are :-

Initial value = -18

Initial value is the output value or the y variable. Looking in the table the y variable is -18 since x is 0.

Rate of change = 0.5

You have to use the formula of rate of change to find the answer. You can choose any pairs from the table and will give you the same answer. I pick the first pair and the last pair to find my rate of change.

(0, -18) and (36, 0)

x1, y1 x2, y2

Rate of change = y2 - y 1 / x2 - x1

Rate of change = 0 - (-18) / 36 - 0

Rate of change = 18 / 36

Rate of change = 0.5

Hope this helps, thank you :) !!

6 0
3 years ago
Read 2 more answers
Simplify: 300-60(2-x)
Agata [3.3K]
So PEMDAS so first you distribute the -30(2-x) and get -120-(-60x) or -120+60x
then you do the rest
300-120+60x
180+60x
factor out the 60
60(3+x)
but the simplest form is 180+60x but both should work
7 0
3 years ago
Read 2 more answers
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