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3 years ago

HELPPP ME NOW (7x^4 − x^2 + 10x + 15) ÷ (x + 1)

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

6 0

Answer:

(7x4-x2+10x+15) / (x+1)

Step-by-step explanation:

natali 33 [55]3 years ago

3 0

Answer: 7x^(2)-7x^(2)+6x+4+(11)/(x+1)

Step-by-step explanation: Set up the synthetic division using the coefficients of the numerator and the root in the denominator. Divide using the rules for synthetic division.

not sure how im suppose to answer but yeah

brainliest or a thank you please :)) <33

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34kurt

Answer:

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3 years ago

For each level of precision, find the required sample size to estimate the mean starting salary for a new CPA with 95 percent co

Rzqust [24]

Answer:

(a) Margin of error ( E) = $2,000 , n = 54

(b) Margin of error ( E) = $1,000 , n = 216

(c) Margin of error ( E) = $500 , n= 864

Step-by-step explanation:

Given -

Standard deviation $\sigma$ = $7,500

$\alpha$ = 1 - confidence interval = 1 - .95 = .05

$Z_{\frac{\alpha}{2}}$ = $Z_{\frac{.05}{2}}$ = 1.96

let sample size is n

(a) Margin of error ( E) = $2,000

Margin of error ( E) = $Z_{\frac{\alpha}{2}}\frac{\sigma}{\sqrt{n}}$

E = $Z_{\frac{.05}{2}}\frac{7500}{\sqrt{n}}$

Squaring both side

$E^{2} = 1.96^{2}\times\frac{7500^{2}}{n}$

$n =\frac{1.96^{2}}{2000^{2}} \times 7500^{2}$

n = 54.0225

n = 54 ( approximately)

(b) Margin of error ( E) = $1,000

E = $Z_{\frac{\alpha}{2}}\frac{\sigma}{\sqrt{n}}$

1000 = $Z_{\frac{.05}{2}}\frac{7500}{\sqrt{n}}$

Squaring both side

$1000^{2} = 1.96^{2}\times\frac{7500^{2}}{n}$

$n =\frac{1.96^{2}}{1000^{2}} \times 7500^{2}$

n = 216

E = $Z_{\frac{\alpha}{2}}\frac{\sigma}{\sqrt{n}}$

500 = $Z_{\frac{.05}{2}}\frac{7500}{\sqrt{n}}$

Squaring both side

$500^{2} = 1.96^{2}\times\frac{7500^{2}}{n}$

$n =\frac{1.96^{2}}{500^{2}} \times 7500^{2}$

n = 864

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3 years ago

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Answer:

IDK i am trying to solve the same problem. I am sorry

Step-by-step explanation:

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3 years ago

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Take the number of pen per box and multiply by the number of boxes giving you the total number of pens bought

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3 years ago

a recipe for 1 handmade pizza calls for 2 1/2 cups all purpose flour. Showing your work below, how many cups of all purpose flou

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You need to use the cross product method to find your answer :

1 pizza = 2 ½ cups
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There you go. I really hope this helped, if there’s anything just let me know! ☻

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3 years ago