3 years ago

What is 57 divided by (-11)

Mathematics

1 answer:

kifflom [539]3 years ago

6 0

The answer to your problem is -5.2

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A mountain climber descends 3,852 feet over a period of 4 days. What was the average amount of her descent over that period of t

Harrizon [31]

To get the answer, divide 3852 feet by 4 days. That will give you an average of 963 feet per day as your answer.

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4 years ago

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Whats 4n = 880.4's solution??

vodka [1.7K]

Answer:

n = 220.1

Step-by-step explanation:

4n = 880.4
n = 880.4 ÷ 4
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the value of n is 220.1

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2 years ago

What are the solutions to cos 2x = - 1

N76 [4]

Answer:

X can be - 1/2 or 0.5

2x0.5=-1

Step-by-step explanation:

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3 years ago

$7000 is compounded semiannually at a rate of 11% for 21years Find the total amount and round to the nearest cent

photoshop1234 [79]

$\text{Given that }\$7000 \text{ is compounded semiannualy at a rate of }11\% \text{ for 21 years}\\
\\
\text{we know that the amount after t year when compounded is given by}\\
\\
A=P\left ( 1+\frac{r}{n} \right )^{nt}\\
\\
\text{here P is the principal amoount, so }P=7000,\\
\\
\text{r is the interest rate, }r=11\%=0.11\\
\\
\text{n is the number of times in a year, here semiannulay, so }n=2,\\
\\
\text{and t is the time, so }t=21\\
\\
\text{so the amount after 21 years is}$

$A=7000\left ( 1+\frac{0.11}{2} \right )^{2(21)}\\
\\
\Rightarrow A=7000\left ( 1+0.055 \right )^{42}\\
\\
\Rightarrow A=7000\left ( 1.055 \right )^{42}\\
\\
\Rightarrow A\approx 66328.68$

So the amount after 21 years is: $66328.68

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3 years ago

Jeff wants to make an a in his math course this semester. To do so, he must have an average of 90 or above. If his test scores t

Kobotan [32]

(88 + 92 + 96 + x) / 4 = 90
(276 + x) / 4 = 90
276 + x = 90 * 4
276 + x = 360
x = 360 - 276
x = 84 <=== he would need an 84

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3 years ago

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