I'm stuck and want to make sure I'm doing it right.

Mathematics

2 answers:

blsea [12.9K]3 years ago

5 0

Answer: 3 3/4

Step-by-step explanation: You add the first two by adding the numerators and that would equal 4/4. 4/4 equals 1 whole so the first answer is 2 then you would add the last fraction. You add the whole numbers first so it would be 3 and then just copy the last fraction so it would be 3 3/4.

murzikaleks [220]3 years ago

4 0

The answers is 3¾ hours

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Consider the polynomial function P(x)=x³+42. Find P(4).

wolverine [178]

Answer:

So the value of polynomial for x = 4 will be 106

Step-by-step explanation:

We have given polynomial $P(x)=x^3+42$

We have to find the value of P(4)

We have to find the value of polynomial for x = 4

So for finding this value we have to just put x = 4 in polynomial

So P(4) will be $P(4)= 4^3+42=106$

So the value of polynomial for x = 4 will be 106

So P(4) will be 106

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4 years ago

Claim: Most adults would erase all of their personal information online if they could. A software firm survey of randomly selec

pychu [463]

Answer:

Test statistic = 3.863

Step-by-step explanation:

We are told that most adults would erase all of their personal information online if they could. Since the word "most" is used, it means more than 50% or 50 percent.

So, p_o = 0.5

Also, we are told that 58 % of them would erase all of their personal information online if they could.

Thus, p^ = 0.58

Number of randomly selected adults; n = 583

The test statistic formula for hypothesis test for proportion is given by:

z = (p^ - p_o)/[√[p_o(1 - p_o)/n]

Plugging in the relevant values, we have;

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3 years ago