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4 years ago

PLEASE HELP .

Mathematics

1 answer:

myrzilka [38]4 years ago

3 0

What the regression is a conflict

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If 25% of a number is 12. What is 75% of the number

KIM [24]

Answer:

=900

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

20%of what number is 80?

prisoha [69]

20% times n = 80

.20 n = 80

divide both sides by .2

n = 80/.2

n= 400

Answer: 400

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3 years ago

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6t−20−32u6, t, minus, 20, minus, 32, u when

anyanavicka [17]

Answer:

The expression is equal to 8

Step-by-step explanation:

This is the question in proper

6t−20−32u

When u= 1/4 t= 6

We were given this, 6t−20−32u then we were given the value of u= 1/4 and that of t= 6.

All we need here is to substitute u= 1/4 t= 6 into 6t−20−32u then evaluate it as follows

6(6)-20-32(1/4)

6×6=36

32×(1/4)=8

Then merge it together and calculate it we have

=36-20-8=8

4 0

3 years ago

Yo can I get some help ?

Rasek [7]

I am probably wrong but 45 degrees? Most if not all triangles equal 180. Since we already have 90 degrees we can subtract 90 from 180 and get 90. Both of the angles on the bottom left and right look about the same size so we can divide 90 by 2 and get 45.

5 0

3 years ago

Rework problem 17 from section 4.1 of your text about a multiple-choice test in which each question has 4 choices only one of wh

12345 [234]

Answer:

probability that exactly 4 out of 9 questions are correct is 0.111

Step-by-step explanation:

Given data:

Test consist of multiple choice question which as 4 choices

Total number of answer randomly = 9

Probability of having 4 answer correctly is calculated as

p = probability of having particular question is answered in correct way

= 1/4 = 0.25

q = probability of having particular question is answered incorrectly

= 3/4 = 0.75

Binomial expansion is beneficial in various situations at which numerical variables are present that are countable or whole numbers

probability that exactly 4 out of 9 questions are correct

$= ^9C_4 (0.25)^4 (0.75)^5$

$= 120\ times 0.00390 \times 0.2373$

= 0.111

7 0

3 years ago