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4 years ago

Evaluate -4² please hurry

Mathematics

2 answers:

alexgriva [62]4 years ago

8 0

squaring something multiplies it by itself. -4^2 = -4*-4 = 16

melisa1 [442]4 years ago

3 0

answer: 16

work:

to solve, multiply -4 to the second power, or mutiply it by itself once.

- 4 x - 4 = 16

so, your answer is 16.

<em> i hope this helped and have a great day! if you need any further assistance with this specific question or i made any mistakes, please let me know!</em>

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Mashcka [7]

I am pretty sure the answer is H

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3 years ago

A highly selective boarding school will only admit students who place at least 1.5 z-scores above the mean on a standardized tes

Butoxors [25]

Answer:

An applicant must score a minimum of 128

Step-by-step explanation:

To solve this question, we make use of the z-score formula.

Z = (X - mean)/standard deviation

Firstly, let’s list out the parameters from the question. From the question, we can deduce that:

Z = 1.5

X = ?

Mean = 110

Standard deviation =12

1.5= (X-110)/12

18 = X - 110

X = 110 + 18

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3 0

3 years ago

Point G is on line segment FH. Given FG=5x+2,GH=3x-1, and FG=9, determine the numerical length of FG

stealth61 [152]

Given:

FG=5x+2

GH=3x-1

FG=9

Let us draw the line segment as follows,

Equating the length of FG, we get,

$\begin{gathered} 5x+2=9 \\ 5x=9-2 \\ 5x=7 \\ x=\frac{7}{5} \end{gathered}$

Substitute the value of x in the given value of GH,

$\begin{gathered} GH=3x-1 \\ =3(\frac{7}{5})-1 \\ =\frac{21}{5}-1 \\ =\frac{16}{5} \\ =3.2 \end{gathered}$

And the total length FH is,

$\begin{gathered} FH=FG+GH \\ =9+3.2 \\ =12.2 \end{gathered}$

Hence, the lengths are,

$\begin{gathered} FG=9 \\ GH=3.2 \\ FH=12.2 \end{gathered}$

8 0

1 year ago

A company that makes hair care products at 9000 people try a new shampoo. Of the 9000 people, 18 had a mid allergic reaction. Wh

lara [203]

Answer:

0.2% of the people had mid allergic reaction.

Step-by-step explanation:

Given that:

Number of people tested for a new shampoo = 9000

Number of people who had allergic reaction = 18

Percent of people = $\frac{People\ who\ have\ reaction}{Total\ number}*100$

Percent of people = $\frac{18}{9000}*100$

Percent of people = 0.002 * 100

Percent of people = 0.2%

Hence,

0.2% of the people had mid allergic reaction.

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3 years ago

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mihalych1998 [28]

brennan is correct and ilene is not

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3 years ago