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zavuch27 [327]
2 years ago
12

Which of the following is equivalent to the expression x2 – 16?

Mathematics
2 answers:
Mazyrski [523]2 years ago
5 0
C is the right answer I think
Cloud [144]2 years ago
4 0

Answer:

Answer is B (x-4)(x+4)

Step-by-step explanation:

By expanding the expression:

(x-4)(x+4)\\x^2-4x+4x-16\\x^2-16

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Haley got a 93% on her first math test and an 86% on her second test. What is her percent decrease from test 1 to test 2 to the
zhenek [66]

Haley’s Percentage Decrease from Test 1 to Test 2 to the nearest tenth is 7.5%

Nearest tenth can be defined as , Look at the hundredth number to round the decimal number to the nearest tenth. If it's more than 5, add one to the tenth value. Remove all the numbers that are present after the tenth place and leave the tenth place value alone if it is less than 5

Given that,

Haley’s Percent score in Test 1 = 93 %

Haley’s Percent score in Test 2 = 86%

Formula For calculating the Percentage Decrease is :

(Beginning Percentage – Final Percentage) / Beginning Percentage * 100

So, by using this formula we can calculate the percentage decrease of Haley’s Test

Percentage Decrease = (93% - 86%)/93% * 100

                 = 7.5%

To know more about Percentage Decrease, Click here :

brainly.com/question/14808025

#SPJ4

8 0
2 years ago
Alice paid $17.00 for 2 beads for her bracelet. Then she paid $42.50 for 5 more of the same kind of beads for her bracelet. Whic
cluponka [151]
Your answer should be 8.5! if thats not one of your answer choices then round it then your answer would be 9! I hope this helped.
8 0
3 years ago
Read 2 more answers
Given that (12,3) is on the graph of f(x), find the corresponding point for the function 8f(x)
Paha777 [63]
When the function is multiplied by a number, in this case f(x) is being multiplied by 8, the outcome of the function is multiplied by 8. So, if you were to still input 12 as x, you would get an output that is 8 times the original. 3 • 8 = 24. The new point would be (12, 24).
5 0
4 years ago
What is f(x) - g(x)?
Gala2k [10]
f(x)=9x^3+2x^2-5x+4\\\\g(x)=5x^3-7x+4\\\\f(x)-g(x)=(9x^3+2x^2-5x+4)-(5x^3-7x+4)\\\\=9x^3+2x^2-5x+4-5x^3+7x-4=9x^3-5x^3+2x^2-5x+7x+4-4\\\\=\boxed{4x^3+2x^2+2x}
7 0
4 years ago
Simplify square root of 1008 ( V` Represents the square root sign.)
Alexus [3.1K]
So first factor it
1008=2*2*2*2*3*3*7
group them in similar pairs
1008=(2*2)(2*2)(3*3)*7
now remember we can do
\sqrt{xy}= \sqrt{x} \sqrt{y} so
\sqrt{1008}= (\sqrt{2*2}) (\sqrt{2*2}) (\sqrt{3*3}) (\sqrt{7})=
2*2*3*\sqrt{7}=
12√7

the answer is B

5 0
3 years ago
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