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Lina20 [59]
4 years ago
9

Question 4: Rewrite the following without an exponent. (5/8)^−1

Mathematics
1 answer:
LUCKY_DIMON [66]4 years ago
7 0
A^-1 = 1/a^2

(5/8) ^ -1 = 1 / (5/8)^2 or 1 / (25/64)
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10. Select all that are true for the graph that represents
Likurg_2 [28]

Answer:

A, C and F

Step-by-step explanation:

The given function is

f(x)=5(3)^x

It is an exponential function of the form

f(x)=a(b)^x

On comparing both the functions, we get

a=5,b=3

It means the initial value is 5 and growth factor is 3.

Since both values are positive it means the given functions is an exponential growth function, therefore,

1. The graph is increasing by a common ratio of 3.

2. As x increases, y increases.

3. As x decreases, y approaches 0.

Hence, the correct options are A, C and F.

8 0
3 years ago
Joey is 5 feet tall and casts a 45-foot shadow. A building casts a 270-foot shadow at the same time. How tall is the building?
Cerrena [4.2K]

Answer:

the building is thirty feet tall

Step-by-step explanation:

so make a ratio of shadow to joey

5:45

simplify that to

1:9

so you can now divide 270 by nine

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the building is thirty feet tall

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3 years ago
A distance runner is running an 18-mile race. So far, he has run 43% of the race.
Nezavi [6.7K]
The answer would be Find 40% of 20 because you would round 43% down and 18 up. Hope this helps :) 
8 0
3 years ago
Read 2 more answers
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Step-by-step explanation:

7h + 4 > 5 - 5h

7h + 5h > 5 - 4

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Step-by-step explanation:

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