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evablogger [386]

2 years ago

7

WILL GIVE BRANLIEST! pls help thank u sm!! :-) u are all amazing

1 answer:

Andrews [41]2 years ago

5 0

Answer:

C

Step-by-step explanation:

Given

3 $(x+9)^{\frac{3}{4} }$ = 24 ( divide both sides by 3 )

$(x+9)^{\frac{3}{4} }$ = 8

Raise both sides to the power of $\frac{4}{3}$

x + 9 = $8^{\frac{4}{3} }$ = $(\sqrt[3]{8}) ^{4}$ = $2^{4}$ = 16 ( subtract 9 from both sides )

x = 7 → C

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Answer:

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Step-by-step explanation:

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2 years ago

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2 years ago

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marishachu [46]

-20+1= -19
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Check:
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2 years ago

the marks in an examination for a Physics paper have normal distribution with mean μ and variance σ2 . 10% of the students obtai

Blababa [14]

Let $X$ be the random variable for the number of marks a given student receives on the exam.

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Similarly, because 20% of students obtain less than 40 marks, we have

$P(X$

so that

$P(Z$

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3 0

3 years ago

Find f-1(x), if f(x) = 3x – 6. Justify your

Sergio039 [100]

Answer: 1/3 (x + 6)

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Trade places between x and y.
x = 3y - 6
Solve for y
x + 6 = 3y
y = x + 6/3
Now the new y is the inverse and so y = f-1(x)
f-1(x) = 1/3(x + 6)

4 0

2 years ago