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3 years ago

These tables represent an exponential function. Find the average rate of

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

6 0

Answer:

Since, we are given table for x and y values

and table for average rate of changes

we can see the pattern of average rate of change

average rate of change for 5 to 6 is three times average rate of change for 4 to 5

but we have to find

average rate of change for 7 to 8

so, using same pattern

average rate of change for 6 to 7 is three times average rate of change for 5 to 6

average rate of change for 7 to 8 is 3*3( average rate of change for 5 to 6)

so, we can plug value

average rate of change for 7 to 8 is 3*3*486

average rate of change for 7 to 8 is 4374

so, option-D...........Answer

Step-by-step explanation:

lana66690 [7]3 years ago

5 0

D is the answer sooo

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3 years ago

Eight times a number increased by 9 exceeds 7 times the number by 15. Find the number.

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Turn it into math terms bit by bit. let x be "a number"

8 times a number is 8×x

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7 times a number is 7×x

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now we put it together.

$8 \times x + 9 - 7 \times x = 15$
solve
$8x + 9 - 7x = 15 \\ x + 9 = 15 \\ x = 6$

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Step-by-step explanation:

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<em>Similarly the value given is the point estimate.</em>

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