3 years ago

Choose the correct graph of the function y= -8(2^x)

Mathematics

1 answer:

andriy [413]3 years ago

3 0

Answer:

The graph should have a y-intercept of -8

Step-by-step explanation:

It seems like your question is incomplete, i can't see any options of graphs.

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Help please!! will give brainiest :))

jeyben [28]

Answer:

81(x + 2y)(x - 2y)

Step-by-step explanation:

$81 {x}^{2} - 324 {y}^{2} \\ \\ = {(9x)}^{2} - {(18y)}^{2} \\ \\ = (9x + 18y)(9x - 18y) \\ \\ = 9(x + 2y) \times 9(x - 2y) \\ \\ = 81(x + 2y)(x - 2y)$

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2 years ago

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igor_vitrenko [27]

Answer:

let x be chips and y be sodas

8x + 4y = 5 ---> for the first hint

4x + 8y = 7------> second hint

0.25 cents is how much chips costs

and 0.75 cents is how much sodas costs

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3 years ago

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kaheart [24]

I should answere should be C

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2 years ago

A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/

PIT_PIT [208]

A=(v-u)/t
We know a=2.5, v=40, u=10, so:
2.5=(40-10)/t
2.5t=40-10
2.5t=30
Divide both sides by 2.5
t=12 It takes 12 seconds for the car to reach 40m/s

To find out how far it went, you do:
d=v+1/2 at^2
d=10+1/2(2.5)(12)^2
d=10+1/2(2.5)(144)
d=10+(1.25)(72)
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d=100m

Hope this helps :)

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3 years ago

I need help please help me :(

Anastasy [175]

Answer:

A. 3

Step-by-step explanation:

$\frac{21}{7}$

REMEMBER to MULTIPLY FIRST!!

21 / 7 = 3

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3 years ago

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