3 years ago

Write the product of 7 times 7 times 7 times 7 in exponential form

Mathematics

2 answers:

spayn [35]3 years ago

8 0

Answer:

7 to the 4 power

Step-by-step explanation

count the number of sevens there are and that the exponent.

Aloiza [94]3 years ago

6 0

Answer:

The answer is 7⁴

Step-by-step explanation:

7×7×7×7 = 7⁴

= 2401

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3 years ago

Sarah Wiggum would like to make a single investment and have $1.7 million at the time of her retirement in 34 years. She has

vovangra [49]

Answer:

Sarah has to invest $502,958.58 today.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

$E = P*I*t$

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

$T = E + P$

In this question:

$t = 35, I = 0.07, T = 1700000$

She has to invest P today.

$T = E + P$

$1700000 = E + P$

$E = 1700000 - P$

$E = P*I*t$

$1700000 - P = P*0.07*34$

$3.38P = 1700000$

$P = \frac{1700000}{3.38}$

$P = 502958.58$

Sarah has to invest $502,958.58 today.

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GarryVolchara [31]

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Write an equation of a line that has slope -5 and y-intercept 2.

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Y=-5x+2
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