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4 years ago

What are the possible values for x in the equation 4x²=64

1 answer:

6 0

$4x^2=64\\ \\4x^2-64 =0 \ \ /:4 \\ \\ x^2-16 =0 \\ \\x^2-4^2=0 \\ \\ (x-4)(x+4)=0 \\ \\ x-4=0 \ \ or \ \ x+4 =0 \\ \\ x=4 \ \ or \ \ x= -4 \\ \\Answer : \ 3) \ \ x=4,-4$

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3 years ago

Suppose f'(7)=9 and g(7)= 5. Find h'(7) where h(x) = 3f(x) + 2g(x) + 7 h'(7)=???

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Answer:

The value of h'(7) = 44 .

Step-by-step explanation:

Given:

f'(7)=9 and g(7)= 5

We have to find : h'(7)

Also,

⇔ $h(x) = 3f(x) + 2g(x) + 7$ ...equation (i)

Plugging the value of 'x' = 7 in equation (i) the equation can be re-framed as:

⇔ $h(7) = 3f(7) + 2g(7) + 7$

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4 years ago

Do these ratios form a proportion?

telo118 [61]

Answer:

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They are able to make 12/21, but that does not mean they are proportional.

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2 years ago

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Step-by-step explanation:

If you need an explanation please tell me.

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3 years ago

Read 2 more answers