All categories

2 years ago

Whats the answer to this question??

Mathematics

1 answer:

r-ruslan [8.4K]2 years ago

4 0

8² = 64
-1³ = -1
2×2×2×2×2 = 32
64 × -1 = -64
-64 ÷ 32 = -2

You might be interested in

What is the unit rate for 6 pack soda for $7.96

Allisa [31]

7.96 / 6 = 1.33 <== unit rate

6 0

3 years ago

Use the Central Limit Theorem to find a mean given a probability Question A video game company sells an average of 132 games a m

aev [14]

Answer:

The number of games must a store sell in order to be eligible for a reward is 135.

Step-by-step explanation:

Let the random variable X represent the number of video games sold in a month by the sores.

The random variable X has a mean of, μ = 132 and a standard deviation of, σ = 9.

It is provided that the company is looking to reward stores that are selling in the top 7%.

That is, $P (\bar X > \bar x) = 0.07$ .

The z-score related to this probability is, z = 1.48.

Compute the number of games must a store sell in order to be eligible for a reward as follows:

$z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}$

$\bar x=\mu+z\cdot \sigma/\sqrt{n}$

$=132+1.48\times (9/\sqrt{36})\\\\=132+2.22\\\\=134.22\\\\\approx 135$

Thus, the number of games must a store sell in order to be eligible for a reward is 135.

5 0

3 years ago

Pants are 25% if pants are $50 what is the new price

Contact [7]

Answer: $37.50

Step-by-step explanation: Assuming you mean 25% off and not 25% of the original price, first convert 25% to a decimal by dividing by 100. 25%/100=0.25. Multiply the price by 0.25. 50*0.25=12.5. Subtract the discount from the original price. 50-12.5=37.5.

3 0

3 years ago

3) The sum of three consecutive numbers is 72. What are the smallest of these numbers?

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

x+x+1=x+2=72

3x+3=72

3x=69

x=23

23+24+25=72

7 0

3 years ago

If A and B are two angles in standard position in Quadrant I, find cos( A + B) for the given function values.

Naddik [55]

You have to find the cos of angle A, so use the Pythagorean equation and trig laws to find the other side of the triangle created by angle A. 3^2 + x^2 = 5^2. x=4. This means cos(A) = 4/5). Make both cos (A) and cos (B) have equal denominators, and add. 148/185 + 60/185 = 208/185. This answer is correct, though it doesn’t appear to be any of the answers you wrote, so either those answers are wrong or you wrote something incorrectly in the problem.

3 0

2 years ago