2 years ago

Which of the following expressions are equivalent to 7×7×7×7 ? Select all that apply.

Mathematics

1 answer:

ryzh [129]2 years ago

4 0

D and E I believe would be the correct choices, 7x4 gives you 28 and 7x7x7x7 gives you 2,401.

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Any whole number and it's opposite,but it cannot be a decimal or fraction

Eddi Din [679]

-1 and 1 are opposites, not decimals, and not fractions. Please mark Brainliest!!!

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3 years ago

You placed a 12% down payment on a new home. Given that the amount of the down payment was $42,655.12, determine the price of th

balandron [24]

12% = $42,655.12

.12x = 42655.12
---------------------
0.12 0.12

355,459.33 is the price of the house.

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2 years ago

Read 2 more answers

How do you solve this

AlladinOne [14]

Answer:

domain: all terms are defined for <em>all real numbers</em>
solution: x = 6

Step-by-step explanation:

Rewrite the equation as a single exponential. After taking the log, the solution becomes obvious.

$5^{x-2}-7^{x-3}=7^{x-5}+11\cdot 5^{x-4}\\\\5^{x-2}-11\cdot 5^{x-4}=7^{x-3}+7^{x-5}\\\\5^{x-2}(1-11\cdot 5^{-2})=7^{x-3}(1+7^{-2})\\\\5^{x-2}\dfrac{14}{25}=7^{x-3}\dfrac{50}{49}\\\\1=\dfrac{2\cdot 7^{x-3}5^4}{2\cdot 5^{x-2}7^3}=\left(\dfrac{7}{5}\right)^{x-6}\\\\0=(x-6)\log(1.4)\\\\x=6$