All categories

4 years ago

Factor the expression. 9b^2-25

Mathematics

1 answer:

Masteriza [31]4 years ago

3 0

you must factorize it as a difference of squares

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

9b^2-25 = (3b)^{2-(5)^2= (3b-5)(3b+5)

You might be interested in

If You Have To Pay Someone $279 In Denominations Of $20 Or Less, What Is The Least Number Of Bills You Could Use?

Amiraneli [1.4K]

You can use 27 $10 bills which gets your at a total of $270 then you can use 1 $5 bill so now you're at $275 then you can use 4 $1 bills that gets you at your total of $279. The least number of bills you can use is 32.

5 0

3 years ago

Does the table represent a linear function? Explain why or why not

OlgaM077 [116]

The table doesn't represent linear function

Step-by-step explanation:

We need to identify if the table represent a linear function or not.

Linear Function

A linear function is defined as a straight line with an x and y intercept and the same slope through the whole line.

Finding the slope of elements in the table:

x y

0 0

1 1

2 8

3 27

Slope= y/x

Slope = 0/0=0

slope = 1/1 = 1

slope = 8/2 = 2

slope = 27/3 = 9

The function represented is: y=x^3

Since the slope of points x and y in the table is not same, and its graph is not linear.

So, the table doesn't represent linear function

Keywords: Linear Function

Learn more about Linear function at:

#learnwithBrainly

4 0

3 years ago

Can someone give me the answers for these?

Alinara [238K]

I think the first one is ( C :3 ) and the other one is B 2

5 0

3 years ago

Reduce 7y + 2y 2 - 7 by 3 - 4y?

Pepsi [2]

(7y+2y2−7)−(3−4y)

=7y+4y+2y2−7−3

=11y−2y2−10

Hope this helps

3 0

3 years ago

Read 2 more answers

Find the reference angle for 404 degrees

Hitman42 [59]

It would have to be 44°. If you go around 360° nothing happens. So subtract 404°-360° and you get 44°. 44°<90° from the x-axis so we are done.

3 0

4 years ago