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vladimir2022 [97]
3 years ago
13

Identify the factoring pattern: y 2 −16=(y+4)(y−4) y2-16=(y+4)(y-4)

Mathematics
2 answers:
liubo4ka [24]3 years ago
7 0

This is a difference of squares. Every time you have the difference between two squares, you can factor it as the product between the sum and the difference of the roots:

a^2-b^2 = (a+b)(a-b)

In your case, the squares are

y^2 \to \text{the square of } y

16 \to \text{the square of } 4

So, the difference between the squares, y^2-16 can be written as the multiplication between the sum and difference of the roots:

y^2-16=(y+4)(y-4)

Troyanec [42]3 years ago
5 0

I think it is the sum of cubes because if you add them, they become cubes.

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I just need 5 please help show work and I’ll give brainliest
Ostrovityanka [42]

Hello from MrBillDoesMath!

Answer:

See Discussion below

Discussion:

A function f is even if f(-x) = f(x)


f(x)                               f(-x)                                  Are they equal?

----------------------------------------------------------------------------------------

-x^8 + 2x^6-5x           -(-x)^8 + 2(-x)^6 + 5x         No

3 abs(x) - 4                 3 abs(-x) -4                       Yes

log5 x^2                     log5 (-x)^2                        Yes

(6x)^ (1/7)                     (-6x)^(1/7)                          No

e^(x^2-x)                     e^( (-x)^2+x)                      No

(x^8 +5x^2)^(-1)           ( (-x)^8 + 5 (-x)^2) ^(-1)      Yes


Answers with Yes, above are even functions.

Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


6 0
3 years ago
15/3 = ?/1. what's the missing unit rate ​
tamaranim1 [39]
The unit rate is 5/1

15/3=5
3/3=1
7 0
3 years ago
Read 2 more answers
Jacob buys 3 hot dogs and a $1 soda.he spent $5.50 in all.what is the cost of one hot dog?
Margaret [11]
It would be $1.50 because if the soda's $1 then subtract it and divide that by the quantity.
6 0
3 years ago
Read 2 more answers
Please help asap!! will give brainlist :)
Naddik [55]

Yo sup??

Area of trapezium=1/2*(sum of opposite sides)*(height of trapezium)

=1/2*(12.5+17.5)*6

=1/2*30*6

=90 cm²

Therefore the correct answer is option A

Hope this helps.

8 0
3 years ago
Read 2 more answers
F(x) = -x^2<br> Find f(3)
Lemur [1.5K]

Answer:

9

Step-by-step explanation:

f(x) = -x^2

f(3) = -3^2

f(3) = 9

5 0
3 years ago
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