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
Diano4ka-milaya [45]
3 years ago
9

Simplify:

rt{80}" alt="4\sqrt{320} - 3\sqrt{80}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
aleksandrvk [35]3 years ago
8 0

Answer:

20 √ 5

Step-by-step explanation:

1. You'll need to simplify each term. You'll get 32 √ 5-12 √ 5.

2. After you subtract  12 √ 5  from 32 √ 5, you'll get 20 √ 5.

You might be interested in
The average weight of a chicken egg is 2.25 ounces with a standard deviation of 0.2 ounces. You take a random sample of a dozen
n200080 [17]

Answer:

P(\bar X

P(\bar X

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Let X the random variable that represent interest on this case, and for this case we know the distribution for X is given by:

X \sim N(\mu,\sigma)  

And let \bar X represent the sample mean, the distribution for the sample mean is given by:

\bar X \sim N(\mu,\frac{\sigma}{\sqrt{n}})

On this case  \bar X \sim N(2.25,\frac{0.2}{\sqrt{12}})

Solution to the problem

We want this probability:

P(\bar X

The best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

If we apply this formula to our probability we got this:

P(\bar X

P(\bar X

5 0
3 years ago
What number is 24% of 25
Katena32 [7]
The answer would be 6. Why? It's because of the 24%. You have to change the 24 into 0.24. If you left it alone, the process would be confusing. Changing it into a decimal is much easier. After you changed the percent into a decimal, multiply the 25. You should get 6 as an answer.
3 0
2 years ago
Read 2 more answers
How many feet is in 215 yards
Lilit [14]
645 feet.

Explanation:
We know that are 3 feet in a yard, so let's set up a proportion to solve this

x215
3 feet n
-------- = -----------
1 yard 215 yards
x 215

We are solving for n. To get from 1 to 215, we multiply by 215. So to get from 3 to the answer, we must multiply by 215 as well. 3 x 215 = 645, therefore that is the answer.
6 0
3 years ago
Read 2 more answers
Solve for x rounding to the nearest hundredth will give to brainlest!!!
Verizon [17]

Answer:

Exact Form:

x

=

64/21e

Decimal Form:

x

=

1.12115639

Step-by-step explanation:

8 0
2 years ago
Somebody please help me answer this
Inga [223]
-2x+4 I am pretty sure
8 0
3 years ago
Other questions:
  • Sketch the graph of the function f(x) = x + |x|.
    5·1 answer
  • Select the point that is a solution to the system of inequalities
    7·2 answers
  • A dozen eggs cost $4.25 at the farm stand. Approximately how much does each egg cost (round to the nearest penny)
    14·2 answers
  • Please help me with questions 30-33
    10·1 answer
  • Plan g is paid 14,000 for a concert. If the money made is split at 2:5 between plan g and the arena. How much money did the aren
    11·1 answer
  • Create a circle and show and explain the difference between the following:
    6·2 answers
  • Eight times the difference of 2 and a number.
    11·1 answer
  • The equation 125 + 37.52x = y models the amount of money in your wallet Y is the total amount of dollars and x is the number of
    13·1 answer
  • My question on math. please help me.
    9·1 answer
  • Please help me the tables i circles are the linear ones. Please help with them all.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!