1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kozerog [31]
2 years ago
8

Evaluate $\dfrac{2\sqrt{72}}{\sqrt{8}+\sqrt{2}}$.

Mathematics
1 answer:
Pavlova-9 [17]2 years ago
8 0
<h3>Answer:  4</h3>

========================================================

Work Shown:

\frac{2\sqrt{72}}{\sqrt{8}+\sqrt{2}}\\\\\frac{2\sqrt{36*2}}{\sqrt{4*2}+\sqrt{2}}\\\\\frac{2\sqrt{36}*\sqrt{2}}{\sqrt{4}*\sqrt{2}+\sqrt{2}}\\\\\frac{2*6*\sqrt{2}}{2*\sqrt{2}+\sqrt{2}}\\\\\frac{12\sqrt{2}}{2\sqrt{2}+\sqrt{2}}\\\\\frac{12\sqrt{2}}{3\sqrt{2}}\\\\\frac{12}{3}\\\\4

Note in step 2, I factored each number in the square root to pull out the largest perfect square factor. From there, I used the rule that \sqrt{A*B} = \sqrt{A}*\sqrt{B} to break up the roots.

You might be interested in
Do the ratios form a proportion? Explain how you arrived at your answer. 9/6 and 156/104​
sattari [20]
9:6,9/6, 9x6 156/104 , 156:104 , 156x104 because there the same thing but different signs
8 0
3 years ago
Please answer. I think its B because negative × negative = positive. So -5 × -5 = 25. BUT...since the exponent is negative, mayb
yanalaym [24]
Evaluate a^2 where a = -5:
a^2 = (-5)^2
Hint: | Evaluate (-5)^2.
(-5)^2 = 25:
Answer:  25


7 0
3 years ago
There are five envelopes on a table. Four of the envelopes are marked 8, 2, 4 and 1. You are told that the mean of the numbers o
Lostsunrise [7]

Answer: 16

Step-by-step explanation:

3 0
2 years ago
What number is 20% of 80?
guajiro [1.7K]

Answer:16

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
-8<br> -4<br> -2<br> -1 <br> Pls help me
maksim [4K]
I’m pretty sure it’s -9. check out quickmath.com that’ll help you !
8 0
3 years ago
Other questions:
  • one bag of pretzels costs three dollars.five bags of pretzels costs $10.whickhas the lower unit price?
    5·2 answers
  • What is the sum of the polynomials?<br> 11x^2-5<br> + x-4
    7·1 answer
  • Please help asap!!!!
    9·1 answer
  • -5x + 4 = 2x + 16<br> How do I solve this
    15·1 answer
  • What is the answer to this?
    12·2 answers
  • A record store owner assesses customers entering the store as high school age, college age,
    5·1 answer
  • ___ tens 15 ones=4 tens 5 ones
    10·1 answer
  • Which is Product of 58 and 1000
    13·1 answer
  • I NEED HELP PLEASE! ;0
    15·1 answer
  • Each bucket holds 423 gallons of water. If it takes 8 buckets to fill a tank, how much water does the tank hold?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!