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3 years ago

What is (2 × 2) to the 2nd power, minus 4?

2 answers:

Ivan3 years ago

7 0

Well first, you would do 2 x 2 which equals 4. Then you make 4 to the 2nd power, which is 16. You subtract 4 from 16, and it's 12.

Umnica [9.8K]3 years ago

6 0

$((2)(2))^2 - 4 \\ \\ 4^2 - 4 \\ \\ 16 - 4 \\ \\ 12$

So, 12 is the answer.

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Consider college officials in admissions registration, counseling, financial aid campus ministry, food services, and so on. How

andre [41]

Since sample size is > 40, we use the z-score in calculating for the confidence interval.

The formula is given as:

Confidence Interval = X ± z * σ / sqrt (n)

Where,

X = mean = $50,340

z = z-score which is taken from standard distribution tables at 90% confidence interval = 1.645

σ = standard deviation = $10,780

n = sample size = 45

Substituting to the equation:

Confidence Interval = 50,340 ± 1.645 * 10,780 / sqrt (45)

Confidence Interval = 50,340 ± 1,607

Confidence Interval = $48,733 to $51,947

Therefore the salary range of the personnel is $48,733 to $51,947.

5 0

3 years ago

Solve 9-3(x+4)=2(x-3)-8 A)3 B)2.5 C)-2.5 D)-4

cupoosta [38]

Answer:

x=11/5, or x=2.2.

Step-by-step explanation:

9-3(x+4)=2(x-3)-8

9-3x-12=2x-6-8

9-12-3x=2x-14

-3-3x=2x-14

-3-3x-2x=-14

-3-5x=-14

5x=-3-(-14)

5x=-3+14

5x=11

x=11/5

x=2.2

4 0

2 years ago

Can someone please help with

Fantom [35]

The answer is B, 4000.

3 0

3 years ago

0.85 in fractional notation

artcher [175]

If you would like to write 0.85 in a fractional notation, you can do this using the following steps:

0.85 = 85/100 which simplifies to 17/20 (the common factor of 85 and 100 is 5, so you can divide both numbers by 5).

The correct result would be 17/20.

8 0

3 years ago

Read 2 more answers

in a classroom training student has to create a triangle pyramid using various items. Each group then used measurement to determ

balandron [24]

The formula for the volume of pyramid is,