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3 years ago

In the parallelogram below find the value of each variable. Hint: find the value of t first

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

Answer:

because this is a parallelogram

=> 3t - 15 = 2t + 10

⇔ t = 10 + 15

⇔ t = 25

with t = 25 => 3t - 15 = 3.25 - 15 = 60

we also have:

4r + (3t - 15) = 180°

⇔ 4r + 60° = 180°

⇒ 4r = 120°

⇔ r = 30

we also have;

4r = 3s

=> 4.30 = 3s

⇔ s = 4.10

⇔ s = 40

Step-by-step explanation:

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Describe the sampling distribution of p(hat). Assume the size of the population is 30,000.n=800, p=0.6a) Determine the mean of t

Leno4ka [110]

Answer:

Standard deviation of the binomial distribution

= $\sqrt{n p q} = \sqrt{192} = 13.856$

Step-by-step explanation:

Explanation:-

Given size 'n' = 800

The population proportion 'p'=0.6

Let 'X' be the random variable of the binomial distribution

a) mean of the binomial distribution = n p = 800 ×0.6

μ = 480

b) variance of the binomial distribution

= n p q

= 800 X 0.6 ×0.4

σ² = 192

Standard deviation of the binomial distribution

σ = $\sqrt{n p q} = \sqrt{192} = 13.856$

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3 years ago

What is the value of the expression below c =3 and d = 2 ? c² - 2d + 3

podryga [215]

Answer:

Step-by-step explanation:

c^2 is 9, 2d is 4

9-4+3=8

3 0

3 years ago

Suppose that 3 boys and 2 girls go to the theater and occupy 5 seats in a row. In how many ways can they be seated if all boys s

guajiro [1.7K]

The answer to the problem is as follows:

Count all boys as one unit. Then there is one boy and 2 girls who can be permuted in 3! = 6 ways. Bout the 3 boys can permute among themselves in 3! = 6 ways.

6x6 = 36 ways in which all boys are together.

I hope my answer has come to your help. God bless and have a nice day ahead!

5 0

4 years ago

Read 2 more answers

Please help, will give brainliest!

e-lub [12.9K]

Answer:

Reflect shape A on the line y=-1

Step-by-step explanation:

None needed you get full marks from the sentence above :)

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3 years ago

Answer ASAP please due soon

insens350 [35]

Answer

2 Transformations

Step-by-step explanation:

Because of reflection and Rotation 180 degrees clockwise

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3 years ago