What is the x of x^2-7x-30=0

1 answer:

Alexxx [7]3 years ago

7 0

The 'x' in x^2-7x-30=0 is 4.

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Effectus [21]

A is the correct choice

3 0

3 years ago

elena55 [62]

Answer:

3.b

$(\frac{8}{3})^{2x+1} *(\frac{8}{3})^{5} =(\frac{8}{3}) ^{x+2}\\\\(\frac{8}{3})^{2x+1 +5} =(\frac{8}{3}) ^{x+2}\\\\\\2x +6 = x+2\\x = -4$

i hope question 3.a. is 5^x ÷ 5^-3 = 5^5

3.a.

$\frac{5^x}{5^{-3}} = 5^5\\\\5^ {x+3} = 5^5\\\\x+3 = 5\\x =2$

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3 years ago

andreev551 [17]

Answer:

D: Yes, a reasonable estimate is around 5 · $7 = $35.

Step-by-step explanation:

None

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2 years ago

Advocard [28]

Answer:

- $\frac{27}{28}$

Step-by-step explanation:

hope this was the answer you were looking for.

4 0

3 years ago

mojhsa [17]

Please add the image to solve. Thank you.

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3 years ago