2 years ago

Somebody help me fast This is correct?!

Mathematics

1 answer:

andrey2020 [161]2 years ago

5 0

Answer:

A.false

B.true

C.false

D.true

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1 page for every 3 students is a unit rate or rate

mixas84 [53]

I think the answer to this is a rate

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Given the functions f(x) = x² – 8 and g(x) = 4-x, determine the equation for the combined function

ElenaW [278]

Answer:

$y=x^2+x-12$

Step-by-step explanation:

f(x) = x² – 8 and g(x) = 4-x

y=f(x) - g(x)

y=(x² – 8) - (4-x)

$y=x^2-8-4+x\\y=x^2+x-12$

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From families with four children a family is chosen at random. Let X be the number of boys in the family. Calculate and sketch t

alisha [4.7K]

Solution :

Given :

X = the number of boys in a family of four children

Families having four children are chosen randomly.

The gender distribution in the four child family are equally probable.

Thus,

X P(X) CDF

0 $^4C_0 (1/2)^{4}$ = 1/16 $\frac{1}{16}$

1 $^4C_1 (1/2)^{4}$ = 1/4 $\frac{5}{16}$

2 $^4C_2 (1/2)^{4}$ = 3/8 $\frac{11}{16}$

3 $^4C_3 (1/2)^{4}$ = 1/4 $\frac{15}{16}$

4 $^4C_4 (1/2)^{4}$ = 1/16 1

4 0

2 years ago

88.83 is what percent of 21

Serjik [45]

88.83 / 21 = 4.23

4.23 is the same number as 423% .

8.23 is <em>423%</em> of 21.

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2 years ago

Read 2 more answers

Sociologists want to test whether the number of homeless people in a particular urban area is increasing. In 2010, the average n

kvv77 [185]

Answer:

single sample z test

Step-by-step explanation: The correct statistics test is the single sample A test.

A one-sample z-test is used to test whether a population parameter is remarkably different from some hypothesized value. Each makes a statement about how the true population mean μ is related to some hypothesized value M. It is used to test whether the mean of a population is greater than, less than, or not equal to a specific value.

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2 years ago