63 + 81 as a factored expression

Bernardo is converting a fraction A/B, to a percent. Both A and B are whold numbers and not equal to zero. Which expression repr

Degger [83]

Answer: I think that the answer might be C but I am not fully sure so please double check.

Have a fantastic day!

So sorry that I answered you late by the way.

7 0

3 years ago

Read 2 more answers

At an ocean-side nuclear power plant, seawater is used as part of the cooling system. This raises the temperature of the water t

grandymaker [24]

Answer:

(a1) The probability that temperature increase will be less than 20°C is 0.667.

(a2) The probability that temperature increase will be between 20°C and 22°C is 0.133.

(b) The probability that at any point of time the temperature increase is potentially dangerous is 0.467.

(c) The expected value of the temperature increase is 17.5°C.

Step-by-step explanation:

Let X = temperature increase.

The random variable X follows a continuous Uniform distribution, distributed over the range [10°C, 25°C].

The probability density function of X is:

$f(X)=\left \{ {{\frac{1}{25-10}=\frac{1}{15};\ x\in [10, 25]} \atop {0;\ otherwise}} \right.$

(a1)

Compute the probability that temperature increase will be less than 20°C as follows:

$P(X$

Thus, the probability that temperature increase will be less than 20°C is 0.667.

(a2)

Compute the probability that temperature increase will be between 20°C and 22°C as follows:

$P(20$

Thus, the probability that temperature increase will be between 20°C and 22°C is 0.133.

(b)

Compute the probability that at any point of time the temperature increase is potentially dangerous as follows:

$P(X>18)=\int\limits^{25}_{18}{\frac{1}{15}}\, dx\\=\frac{1}{15}\int\limits^{25}_{18}{dx}\,\\=\frac{1}{15}[x]^{25}_{18}=\frac{1}{15}[25-18]=\frac{7}{15}\\=0.467$

Thus, the probability that at any point of time the temperature increase is potentially dangerous is 0.467.

(c)

Compute the expected value of the uniform random variable X as follows:

$E(X)=\frac{1}{2}[10+25]=\frac{35}{2}=17.5$

Thus, the expected value of the temperature increase is 17.5°C.

7 0

4 years ago

In four rounds of a card game, you get scores of - 1, - 4, - 8, and 10. What is your final score?

SSSSS [86.1K]

The final score if you're looking for the sum of the numbers would be -3. Remember: Adding a negative is the equivalent of subtracting. Ex. 3 + (-3) = 0.

If you add -1 and -4, you get -5.
If you add -5 and -8, you get -13.
If you add -13 and 10, you get -3.

Hope I could help!

5 0

3 years ago

Paul wants to place an ad in a newspaper. The newspaper charges $10 for the first 2 lines of

spin [16.1K]

Answer:

$38

Step-by-step explanation:

$10 × 2= $20

Therefore the first two lines cost $20

$3 for each additional line of text

since the total lines are 8 lines therefore 8 -2=6

$3 × 6=$18

Tolat cost: First two lines + additional lines

$20+$18= $38

6 0

3 years ago

3. A ball is dropped initially from a height of 1.2 m. The rebound from the floor is 3/5 of the previous height.

ozzi

Answer:

Step-by-step explanation:

Let the height above which the ball is released be H

This problem can be tackled using geometric progression.

The nth term of a Geometric progression is given by the above, where n is the term index, a is the first term and the sum for such a progression up to the Nth term is

4 0

3 years ago