3 years ago

If you’re correct I’ll give u brainlist!!

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

5 0

Answer:

CPCTC

(already proved congruence of triangles, use that to find the two congruent angles)

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Solve for r.<br> -13 = r/9 +8

love history [14]

R/9 = -21
Multiply by 9
r = -189

4 0

3 years ago

Read 2 more answers

3. For the equation-4y = &r, what is the constant of variation? (1 point)<br> ООО<br> 02

alexandr1967 [171]

Answer:

3).

$- 4y = 8x \\ \frac{y}{x} = \frac{8}{ - 4} \\ \frac{y}{x} = - 2 \\ y = - 2x \\ hence \: constant \: is \: - 2$

4).

$y \alpha x \\ y = kx \\ where \: k \: is \: the \: constant \: of \: proportionality \\ when \: y = 24 \: and \: x = 8 \\ substitute \: in \: y = kx \\ 24 = 8k \\ k = \frac{24}{8} \\ k = 3 \\ value \: of \: constant = 3$

If it was by 10, k = 3 by 10

k = 30

5).

$general \: equation \: of \: line \\ y = mx + c \\ but \: m = \frac{2}{3} \: and \: c = 9 \\ substitute \: for \: m \: and \: c \: in \: y = mx + c \\ y = \frac{2}{3} x + 9 \\ alternatively \\ 3y = 2x + 27$

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3 years ago

Can someone help me with #19

zlopas [31]

Answer:

XZ,X(-10,9)

Y(-4,8)

X2,YZ(14-1)=12

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3 years ago

Does anyone know this?

Natalija [7]

it is 24 vjsnvfvfjobbjgbnjg ngnbb

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3 years ago

There are 80 students in a speech contest.yesterday, 1/5 of then gave their speeches. Today, 5/8 of the remaining students gave

LekaFEV [45]

Answer:

i dont f**cking know!! LOLLLLL GIVE ME BRAINLIEST PLEASE !!!!

Step-by-step explanation:

3 0

3 years ago

￼ If you’re correct I’ll give u brainlist!!

If you’re correct I’ll give u brainlist!!