2 years ago

12 POINTS!!!

Mathematics

1 answer:

dimaraw [331]2 years ago

7 0

Answer:

Step-by-step explanation:

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A 4 x 3w B 5 - 4r C 8 ÷÷ 4p D 4 ÷÷ 2y

Dovator [93]

Answer:

ok?

Step-by-step explanation:

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3 years ago

Eric jogged 31/4 miles on monday 5 5/8 miles on tuesday and 8 miles on wensday .suppose he continues the pattern for the remaind

Troyanec [42]

The is increasing by 2 3/8
So the answer is 12 3/4 miles on Friday

Hope this helps :)

3 0

3 years ago

Simplify the expression. 8h + (-7.9d) - 16 + 5d - 2.9h

svp [43]

Answer:

-2.8h-26+5d

Step-by-step explanation:

So just combine like terms

For the h, you’d get -2.8

For the d, you’d get 5

For the normal integer, -26

5 0

2 years ago

Read 2 more answers

How Many Close Confidants Do People Have? In a recent study,1 2006 randomly selected US adults (age 18 or older) were asked to g

yaroslaw [1]

Answer:

0.08065

Step-by-step explanation:

Given that in a recent study,1 2006 randomly selected US adults (age 18 or older) were asked to give the number of people in the last six months with whom you discussed matters that are important to you.

If X is random variable then X has mean 2.2 and s = 1.4

n=2006

Std error of mean = $\frac{1.4}{\sqrt{2006} } \\=0.03126$

For 99% since sample size is large, t and z distn almost coincide.

Hence we can take 2.58 as critical value

Margin of error at 99% = $2.58*0.03126\\=0.08065$

7 0

2 years ago

Alexandra invested $800 in an account paying an interest rate3.1% compounded continuously. Assuming no deposits or withdrawals a

s2008m [1.1K]

$\bf ~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$800\\ r=rate\to 3.1\%\to \frac{3.1}{100}\dotfill &0.031\\ t=years\dotfill &20 \end{cases} \\\\\\ A=800e^{0.031\cdot 20}\implies A=800e^{0.62} \\\\\\ A\approx 1487.14\implies A=\stackrel{rounded~up}{1500}$

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3 years ago