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3 years ago

Find the angle complementary to the angle 80°.

2 answers:

8 0

My answer -

Two angles are said to be complementary to each other when the sum of the two angles gives 90°. To find the angle complementary to angle 80°25′, we subtract angle 80°25′ from angle 90°. i.e. 90° - 80°25′ = 90° - 80° 25/60 = 90° - 80° 5/12 = 9° 7/12 = 9° (7/12 x 60)' = 9°35' Therefore, the angle complementary to 80°25′ is 9°35'.

p.S

Happy to help you have an AWESOME!!! day ^-^

Cerrena [4.2K]3 years ago

7 0

90 i the complementary to the angle 80. add 10

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A+b in terms of a and evaluated these expressions when a = 3

Fofino [41]

Answer:

If a equals 3 then the answer should be 3b

Step-by-step explanation:

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3 years ago

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USA Today reports that about 25% of all prison parolees become repeat offenders. Alice is a social worker whose job is to counse

MissTica

Answer:

P(x = 0) = 0.004

P(x = 0) = 0.047

P(x = 0) = 0.211

P(x = 0) = 0.422

P(x = 0) = 0.316

Step-by-step explanation:

We are given the following information:

We treat a person who does not become a repeat offender as a success.

P(Success) = P(person who does not become a repeat offender) = 0.75

Then the number of people follows a binomial distribution, where

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}$

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 4

We have to evaluate:

$P(x = 0)\\= \binom{4}{0}(0.75)^0(1-0.75)^4 = 0.004$

$P(x = 1)\\= \binom{4}{1}(0.75)^1(1-0.75)^3 = 0.047$

$P(x = 2)\\= \binom{4}{2}(0.75)^2(1-0.75)^2 = 0.211$

$P(x = 3)\\= \binom{4}{3}(0.75)^3(1-0.75)^1 = 0.422$

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4 years ago

Find the slope of 7x+9y=45

Svetach [21]

Answer: -7/9

Step-by-step explanation: To identify the slope of this line, first notice that this equation is in standard form which is Ax + By = C.

To find the slope, we need to solve for our variable y.

We first need to identify what is happening to our variable y. You can notice that it's being multiplied by 9 and is being added by 7x because 7x is a +7x so we're adding the 7x to the 9y.

So the first thing we do is undo addition and subtraction to our variable.

On the left the -7x's cancel and we are left with 9y. on the right, we do not want to write 45 - 7x because we always want to keep our variable in front of our constant. So I will just write that as 9y = -7x + 45.

Now we can divide everything by 9 in order to get y by itself.

This leaves us with y = -7/9x + 5.

Now our slope is the multiplier or the coefficient of the x term which in this case is -7/9. So the slope is -7/9.

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4 years ago

Math question! Help needed!

katrin2010 [14]

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3 years ago

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saw5 [17]

Answer:

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3 years ago