3 years ago

Help me please i need help

Mathematics

1 answer:

olchik [2.2K]3 years ago

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What's the value of 42÷1/7? (show work)<br>A.1/294<br>B.1/6<br>C.6<br>D.294

Arisa [49]

42/1/7 u would do the reciprocal for 1/7 so then it would 42•7/1 and then u would get 294

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The number of people that belong to a certain social website is 412 and growing at a rate of 5% every month. How many members wi

vladimir1956 [14]

Population are always modeled by exponential growth equation given by:
f(x)=a(1+b)^t
where:
a=original number
b=rate of growth
t=time
thus
f(x)=412(1.05)^t
the population after 9 months will be:
f(9)=412(1.05)^9=639.15=639

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3 years ago

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Sally is planning the school picnic and needs to decide what food vendor to use. She asks 250 students whether they would rather

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Answer:

0.18!

Step-by-step explanation:

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You’ve observed the following returns on Crash-n-Burn Computer’s stock over the past five years: 14 percent, –9 percent, 16 perc

MatroZZZ [7]

Answer:

a. 9%

b. 0.01445

c. 12.02%

Step-by-step explanation:

n = 5 years

Return rates = 14%, –9%, 16%, 21%, and 3%

a. Arithmetic average return

$A= \frac{14-9+16+21+3}{5} \\A=9.00$

b. Historical variance (to 5 decimal places)

$V= \frac{\sum (X_i-A)^2}{n-1} \\V= \frac{(0.14-0.09)^2+(-0.09-0.09)^2+(0.16-0.09)^2(0.21-0.09)^2(0.03-0.09)^2}{5-1}\\ V=0.01445$

c. Standard deviation.

$s = \sqrt{V} \\s= \sqrt{0.01445}\\s=0.1202 = 12.02\%$

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3 years ago

What is the prime factorization of 210

SashulF [63]

Answer: 2*3*5*7

Step-by-step explanation:

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