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2 years ago

9

Somebody help me with this 30 points ☺️

1 answer:

brilliants [131]2 years ago

8 0

Answer:

4r- 21

Step-by-step explanation:

4 - r= r and r+ 21/= R21 and Simplified Is -4 and R21

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Factor the expression. 81y+54

seraphim [82]

Answer:

27 • (3y + 2)

Step-by-step explanation:

27 • (3y + 2)

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Hatshy [7]

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Solve for x.<br> 6x - 3x = 12

expeople1 [14]

Answer:

x=4

Step-by-step explanation:

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2 years ago

What are the focus and directrix of the parabola that is the graph of the function f(x)=x²?

Hitman42 [59]

Answer:

Step-by-step explanation:

Given

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comparing it with standard equation $x^2=4ay$

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directrix

y=-a

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2 years ago