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3 years ago

Express (5⁴)(5⁷) as a power with a single exponent.

Mathematics

1 answer:

Jobisdone [24]3 years ago

6 0

Im think it might be 5
${5}^{4} \times {5}^{7 = } {5}^{11}$
so sorry if im wrong

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Area of the living room is 180 square feet and the perimeter is 54 feet. What are the dimensions in feet?

dolphi86 [110]

Answer.....15ft by 12ft

Explanation:

Area = Length × Width

180 = LW....make W the subject of formula

;W = 180/L

Perimeter = 2L + 2W

54 = 2L + 2(180/L)...sub W with the formula above...

then simplify the equation and obtain...

2L^2 - 27L + 180 = 0....then solve using the quadratic formula....then obtain..

;L = 15ft....after obtaining L = 15...then substitute into the W = 180/L equation...

where W = 180/15 = 12ft

there you have...Length = 15ft and Width = 12ft

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EleoNora [17]

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look at the attached picture

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