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horsena [70]
3 years ago
12

7-x= 49 Solve the exponential equation

Mathematics
1 answer:
hjlf3 years ago
8 0

Answer:

x=-42 to check ur answer place it like this 7-(-42) =49 which is correct

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PLEASEEEEEEEEEEEEEEEEEEEEEE Edgar rolls two six-sided number cubes. What is the probability that he rolls a 2 on
frutty [35]

Answer:

The probability that he rolls a sum of 9 given the sample space is . 9/36, or 1/4.

What is the probability?

Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

The probability that he rolls a sum of 9 = cubes that have a sum of 9 / total number of cubes

9/36 = 1/4

5 0
2 years ago
If c=25 and B=75 degrees, find a. Round to the nearest tenth.
worty [1.4K]

Answer:

a=6.9

Step-by-step explanation:

Since you know that C is a right angle, you can use the Law of Sines to find a. The first step is to find the size of the angle A, which is 180-74-90=16. Now, you set up a ratio that involves 3 knowns and one unknown to get \frac{\sin(90^\circ)}{25} = \frac{\sin(16^\circ)}{a}, which after cross multiplying yields a=\sin(16^\circ)\cdot25\approx 6.9. PM me if you have any questions?

5 0
3 years ago
What is -a^-2 if a = -5? (PLEASE HELP WILL MARK BRAINLIEST!!!)
4vir4ik [10]

Answer:

-1/25

Step-by-step explanation:

-a^-2

-(-5)^-2

=-1/25

6 0
3 years ago
Hotels, like airline, often overbook, counting on the fact that some people with reservations will cancel at the last minute. A
agasfer [191]

Answer: The required probability is 0.334.

Step-by-step explanation:

Since we have given that

N = 15 reservations

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probability of reservations will be used = 1-0.2=0.8

Let X be the Binomial variable,that the number of reservations canceled.

We need to find the probability that more than 8 but less than 12 reservations.

So, it becomes,

P(8

Hence, the required probability is 0.334.

6 0
2 years ago
Read 2 more answers
How do you solve a inequality
maks197457 [2]

You do the same operation on both sides.

Hope this helps!

4 0
3 years ago
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