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3 years ago

6

The sun of the first number and twice the second number is 16. The second number is two more than the first number. What are the

numbers?

1 answer:

Bingel [31]3 years ago

7 0

7+9=16

Step-by-step explanation:

let us add the numbers step by step:

Just add the numbers like this [1+3,2+4,3+5,4+6,5+7,6+8,7+9…]

you get the answer 7+9=16

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Find the average rate of change of f(x) = 4x² – 3 from 3 to 9.

Lina20 [59]

Answer:

44

Step-by-step explanation:

Given:

$f(x) = 4x^2 - 3$

Required:

Average range of change from 3 to 9

SOLUTION:

Step 1:

Find f(3) and f(9):

To find f(3), replace x with 3 in the given function

$f(3) = 4(3)^2 - 3$

$f(3) = 4(9) - 3$

$f(3) = 36 - 3$

$f(3) = 33$

To find f(9), replace x with 9 in the given function

$f(9) = 4(9)^2 - 3$

$f(9) = 4(81) - 3$

$f(9) = 324 - 3$

$f(9) = 321$

Average rate of change = $\frac{f(b) - f(a)}{b - a}$

Where,

$a = 3, f(a) = 33$

$b = 9, f(b) = 321$

Plug in the values into the formula for average rate of change.

$= \frac{321 - 33}{9 - 3}$

$= \frac{288}{6}$

$= 44$

Average rate of change = 44

3 0

3 years ago

The graph shows a proportional relationship.

koban [17]

The unit rate is 4.5

8 0

3 years ago

If x equals 5 what is 72+72+18x+9+18x+9

romanna [79]

Answer:

342

Step-by-step explanation:

x=5

72+72+18(5)+9+18 (5)+9=342

7 0

3 years ago

After all the taxes are withheld, Jamie's paycheck is about 80% of his total

Andreyy89

Answer:

Explanation down below.

Step-by-step explanation:

10% of 91.25 = 9.125.

20% of 91.25 = 18.250.

30% of 91.25 = 27.375.

40% of 91.25 = 36.500.

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B, 70 dollars.

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3 years ago

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Doss [256]

D is the correct answer

5 0

3 years ago

Read 2 more answers