3 years ago

I need help completing this problem ASAP

Mathematics

2 answers:

Sergio039 [100]3 years ago

6 0

Answer:

A. $8\sqrt{5}$

Step-by-step explanation:

$\sqrt{45} + \sqrt{125} =$

$= \sqrt{9 \times 5} + \sqrt{25 \times 5}$

$= 3\sqrt{5} + 5\sqrt{5}$

$= 8\sqrt{5}$

Evgen [1.6K]3 years ago

5 0

Answer:

8 sqrt(5)

Step-by-step explanation:

sqrt(45) + sqrt(125)

Rewriting

sqrt(9*5) + sqrt( 25 *5)

we know sqrt(ab) = sqrt(a) sqrt(b)

sqrt(9) sqrt(5) + sqrt(25) sqrt(5)

3 sqrt(5)+5 sqrt(5)

Add like terms

8 sqrt(5)

You might be interested in

Consider the composite function (g (x) ) = StartRoot StartFraction 1 Over x squared minus 3 EndFraction EndRoot. If g(x) = x2 –

balandron [24]

Answer:

answer is c

Step-by-step explanation:

8 0

4 years ago

You spin each spinner and find the sum. How many different sums are possi

kumpel [21]

Answer:

Step-by-step explanation:

fe . seFgrgaerugaieurhrgHRGIQEHRIUGA EIUG IAUERG

3 0

3 years ago

One number is 3 times another. If the sum of the two numbers is 15, find the two numbers.

gregori [183]

Answer:

15/4 and 45/4

Step-by-step explanation:

Let x and y be the numbers

x = 3y

x+ y = 15

Substitute the first equation in to the second equation

3y+y = 15

4y = 15

y = 15/4

x = 3(15/4)

x = 45/4

The two numbers are 15/4 and 45/4

8 0

3 years ago

Read 2 more answers

Two stores sell the same refrigerator for the same original price. Store A advertises that the refrigerator is on sale for 15% o

andrew-mc [135]

I'm not sure about the answer, but this is how I would do it, since 15% and $150 are the same based on the question. do let me know if it's right! :)

3 0

4 years ago

So, This question is for Adding and subtracting positive and negative numbers Im trying to learn how to solve questions like thi

Ludmilka [50]

The eight should be in parentheses but the eight turns into a positive making the answer 4

hope this helps!

7 0

3 years ago