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4 years ago

Which of the following best describes the algebraic expression 7(x + 12) - 4

Mathematics

2 answers:

antoniya [11.8K]4 years ago

5 0

7x+80 because you have to distribute the 7 to both of the number in the parentheses then subtract 84-4 and gets 7x+80.

Rudik [331]4 years ago

4 0

Answer:

7(x+12) - 4

7x + 84 - 4

7x + 80

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3 years ago

PLEASEEEE

Jobisdone [24]

<h3>Answer: 9.4 feet</h3>

Work Shown:

sin(angle) = opposite/hypotenuse

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3 0

2 years ago

The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the probability that someone scored

navik [9.2K]

Answer:

8.08 %

Step-by-step explanation:

Let us denote : $X=$ score X follows a normal distribution with mean $=24$ and standard deviation $=1.5$

Step 2

The probability that someone scored 21.9 or less is :

$\mathrm{P}(\mathrm{X} \leq 21.9)$

$=\mathrm{P}\left(\mathrm{Z} \leq \frac{21.9-24}{1.5}\right)$

$=\mathrm{P}(\mathrm{Z} \leq-1.4)$

$=0.0808$

$=8.08%$

Answer : $8.08 %$

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3 years ago