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schepotkina [342]
2 years ago
10

Please help and explain

Mathematics
1 answer:
stellarik [79]2 years ago
8 0
CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM 
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What is the product of the polynomials below? (x-9)(x+2)
Leno4ka [110]
(x-9) (x+2)=x²+2x-9x-18=x²-7x-18
5 0
3 years ago
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Let f(x) = x2 − 16. find f−1(x). open study
Bogdan [553]
Okay, so first you make f(x) = y and switch x and y. So the equation becomes:

x = y^2 - 16

The next step is to get y by itself. So first you add 16 to both sides:

x + 16 = y^2

Now you square root everything, so the final answer is going to be:

the square root of x + 4 = y
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3 years ago
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Aziza has a triangle with two sides measuring 11 in. and 15 in. She claims that the third side can be any length as long as it i
irina [24]

Answer:

Aziza’s claim is incomplete. The third side must be between 4 in. and 26 in.

Step-by-step explanation:

With the Triangle Inequality Theorem, saying that the sum of lengths of any two sides of a triangle is greater than the length of the third side. With this we can develop two inequalities:

11 + 15 > x

26 > x

rewrite this as x < 26

11 + x > 15

x > 15 - 11   Subtract 11 from both sides

x > 4

Therefore, the third side can be anywhere greater than 4 inches and less than and less than 26 inches.

4 <  x < 26

4 0
3 years ago
Could use help on this one! Will give Brainliest to the correct answer and thanks
Gnesinka [82]
D. Is the answer if im wrong then you don't have to thank me
4 0
3 years ago
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Can you help me find the B plzzz
UNO [17]

Answer:

B=80

Step-by-step explanation:

B is the same answer as the number on the other side

8 0
2 years ago
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