PLEASE HELP ME ANSWER THIS!!! PLEASE

Mathematics

2 answers:

MatroZZZ [7]3 years ago

8 0

121° + 30° + x° = 180°

151° + x° = 180°

x = 29°

Oksanka [162]3 years ago

4 0

29 degrees is your answer :)

You might be interested in

Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Check all that apply.

Katyanochek1 [597]

The correct answer is –6x + 15 < 10 – 5x.

We can tell this by solving for x.

–3(2x – 5) < 5(2 – x) ----> Multiply to the parenthesis.

-6x + 15 < 10 - 5x ----> This is answer #3 and now we add 5x to both sides

-x + 15 < 10 ----> subtract 15 from both sides

-x < -5 ----> Divide by -1

x > 5 (Note that you have to change the direction of the sign when dividing by a -1. Therefore it does not match answer #1).

5 0

3 years ago

Of police academy applicants, only 25% will pass all the examinations. suppose that 12 successful candidates are needed. what is

Genrish500 [490]

The probability is 0.0008.

I used a binomial probability on this one, since there are two outcomes (either pass or fail); the events are independent (the probability of one person passing does not influence the probability of another passing); and there are a fixed number of trials (in this case, 20).

For binomial probabilities, we use the formula:
$_nC_k=p^k*(1-p)^{n-k}$

With our information, we have:

8 0

3 years ago

Find f(-1) if f(x) = -3x - 5 Choices A. -9 B. -8 C. -2 D. 2

GenaCL600 [577]

Answer:

Step-by-step explanation:

All you have to do is plug in -1 for x in the equation

f(-1)= -3(-1)-5

-3 times -1 = 3

Then you need to subtract 5 leaving it to be 3-5 = -2

Therefore the answer is C. - 2

5 0