Let e = 15. What is the value of 2e?

A.
13

B.
17

C.
30

D.
215

Answers

Answer 1

Answer: 2e = 2 X (15)

2 X 15 = 30

Answer: C. 30

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How many strings of eight uppercase English letters are there if no letter can be repeated?

Answers

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A hot-air balloon was decommissioned after a successful flight by letting the 3000 m^3 of air in it leak out. The loss in the volume of air in the balloon was exponential, decreasing at x percent per minute. If there was 1626 m^3 of air in the balloon 15 minutes after it began to be decommissioned, at what percent per minute to the nearest percent did the balloon lose air?A) 1%
B) 2%
C) 3%
D) 4%

Answers

for the first minute, the new volume of air is 3000 x $(X)/(100)$ because X% volume of air is lost every minute.What would've happened is a total of 3000 x $((X)/(100))^(15)$ would've been lost.

thus, what we have so far is:
3000 x $((100 - X)/(100))^(15)$ = 1626
$((100 - X)/(100))^(15)$ = $(1626)/(3000)$
$(100 - X)/(100) = \sqrt[15]{(1626)/(3000) }$

which is same as:
$(100 - X)/(100) = 0.95999$ (rounded)
$100 - X = 0.95999$ x 100
100 - X = 95.999
-X = 95.999 - 100
X ≈ 4

Therefore, 4% of air was lost from the balloon every minute.

BTW
The reason I did $((X)/(100))^(15)$ was because in multiplications, the order doesn't matter, so instead of doing
$(X)/(100)((X)/(100)((X)/(100)3000))....$
15 times, I just merged them into that equation

UPDATED sorry forgot some steps...

What is the constant in the expression 8x-2y+48

Answers

48
It is the only number that isnt affected in any way

In a randomly generated list of numbers from 0 to 6, what is the chance that each number will occur?

Answers

The chance that each number will occur is 1/7.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

We have,

The list of numbers generated is; 0, 1, 2, 3, 4, 5, 6,

There are 7 alternative outcomes, and each one has an equal chance of occurring. The likelihood or possibility that any number will occur is determined by;

= number of times the number occurs / 7

= 1/7

Thus, the chances are 1/7.

Learn more about Probability here:

brainly.com/question/10737486

#SPJ7

Answer= 1/7

there are 7 number possibilities ex 0,1,2,3,4,5,6

So the odds of randomly generating one number would be 1 in 7 possibilities.

1/7

You have a 13 foot long ladder and need to climb to a 12 foot tall roof. If you put the top of the ladder at the top of the wall, what angle is formed between the ladder and the ground?