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3 years ago

Multiply (x+7) (x-7)

Mathematics

2 answers:

Margaret [11]3 years ago

7 0

Foil the answer so it would be 2x-7x+7x-49 then you would combine like terms so the answer is 16x-49

Crank3 years ago

3 0

(x+7) (x-7)
= x^2 - 49

using a^2 - b^2 = (A + b)(a - b)
hope it helps

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What is the average rate of change of the function on the interval from x = 1 to x = 2?

neonofarm [45]

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2-1 =1

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3 years ago

8. Is the following statement true or false? Justify your conclusion. If a and b are nonnegative real numbers and a + b =0, then

atroni [7]

Answer:

If $a + b = 0$ then $a = 0$ and $b =0$

a | b | a + b (answer)

0 | 0 | 0

0 | 1 | 1

0 | 2 | 2

1 | 0 | 1

2 | 0 | 2

1 | 1 | 2

2 | 1 | 3

Step-by-step explanation:

Considering the following conditions for the real numbers:

$a\geq 0\\b\geq 0$

Following the rules of these in-equations, it is possible to deduce:

$a + b \geq 0$

Then, if the proposed statement is:

$a + b = 0$

The conditions above shall comply the requirements established, but first, analyzing the statement:

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3 years ago

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garik1379 [7]

The answer is 150 because 6 times 25.60 equals 153.6

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2 years ago

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The sample is all voters in the district that think he’s doing a good job

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3 years ago

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sweet-ann [11.9K]

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33x(2025186)(6y−2)−2

=109360044xy−36453348x−2

Evaluate for x=20,y=25

(3)(20)(2025186)(25)−2

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because 18 is by itself i just did Evaluate for x=18,y=18

(3)(18)(2025186)(18)−2

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3 years ago