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3 years ago

-9h - 15 =30 plz answer lol

Mathematics

2 answers:

Lera25 [3.4K]3 years ago

6 0

Pleeeeeassssssssss Mark as Brainless please please please please please

Lemur [1.5K]3 years ago

4 0

[Add] 1.

-9h = 30 + 15

[Simplify] 2.

-9h = 45

[Divide] 3.

h = - 45/9 ( A negative Divide)

[Answer] 4.

h = -5

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Please help will give brainliest!

Ipatiy [6.2K]

Answer:

Should be 1 if im not wrong Then Mark Me brainliest

Step-by-step explanation:

a negative times a neg equals a posative

Neg x pos = neg

pos x neg = neg

pos x pos = pos

neg x neg = pos

so if there greater then over neg<, >,=

You would look at the problem for given f(x)=

x → -1 and neg times neg more or less

-1 x -1 = 1

7 0

3 years ago

Find anequation for the perpendicular bisector of the line segment whose endpoints are(3, -1) and (-9,5).

Mariulka [41]

The perpendicular bisector goes through the midpoint.

What is the midpoint of the 2 points?

We simply add up the x points and divide by 2. Then we add up the y points and divide by 2.

So,

Midpoint is:

$(\frac{3-9}{2},\frac{-1+5}{2})=(-3,2)$

Also, the perpendicular bisector's slope is the negative reciprocal of the line's slope.

The slope of the line is change in y points divided by change in x points.

Slope =

$\frac{5--1}{-9-3}=\frac{5+1}{-12}=\frac{6}{-12}=-\frac{1}{2}$

The slope (m) of the perpendicular line (negative reciprocal) is basically:

$2$

Equation of line is:

$y-y_1=m(x-x_1)$

m is the slope (what we got "2")

x1 and y1 are the respective point where it passes through (which is the midpoint, which is (-3,2)

So, equation of perpendicular bisector is:

$\begin{gathered} y-y_1=m(x-x_1) \\ y-2=2(x+3) \\ y=2x+6+2 \\ y=2x+8 \end{gathered}$

4 0

1 year ago

Eric was rock climbing. At one point, he stopped and climbed straight down 2 1/2 METERS

sasho [114]

Answer:

$+4\frac{1}{4}$ meters

Step-by-step explanation:

Let's take climbing down as "negative" and climbing up as "positive". Now, we can simply use the numbers and signs to find the change in elevation.

$2\frac{1}{2}$ meters down means $-2\frac{1}{2}$
$6\frac{3}{4}$ meters up means $+6\frac{3}{4}$

So, now we have: $-2\frac{1}{2}+6\frac{3}{4}\\=-\frac{5}{2}+\frac{27}{4}\\=\frac{-5(2)+27}{4}\\=\frac{-10+27}{4}\\=\frac{17}{4}=4\frac{1}{4}$

<u>Eric's elevation changed $4\frac{1}{4}$ meters above. So after the 2 moves, he is up by $4\frac{1}{4}$ meters.</u>

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3 years ago

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Nitella [24]

I don’t know if this is a joke or not but the answer is 6

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4 years ago

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NARA [144]

I’m not sure but I think it’s parallelogram I hope I’m right

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4 years ago

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