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Allisa [31]
2 years ago
8

Help me out guys!!!!!!!​

Mathematics
1 answer:
Dmitrij [34]2 years ago
3 0

Answer:

\frac{5 \sqrt{11} }{11}

you are correct !!

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A rectangular rug has an area of 84 square feet. If its length is 2 feet more than twice its​ width, find the dimensions of the
weeeeeb [17]

L=2W+2

W=(L-2)/2

A=LW, using W from above makes this

A=L(L-2)/2

2A=L^2-2L

L^2-2L-2A=0, given A=84

L^2-2L-168=0

(L-14)(L+12)=0, since L>0

L=14

The length of the rug is 14 ft

(W=(L-2)/2=6 ft)

3 0
3 years ago
What percentage of Americans would you predict wear contact lenses?​
mylen [45]
About 11% of Americans wear contacts!
4 0
2 years ago
Identify the graph of the equation y = 2x2 − 2x + 1.
Schach [20]

Answer:

im pretty sure it's c

Step-by-step explanation:

8 0
3 years ago
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REUPLOAD PLS HELP AND SUPER FAST !! YES BRAINLEST :))
eimsori [14]
30/150 = 80/x

Reduce the fraction:
1/5 = 80/x

Cross multiply:
x = 5 x 80

x= 400

Answer: 400 zebras.
3 0
4 years ago
About 2% of the population has a particular genetic mutation. 500 people are randomly selected.
S_A_V [24]

The standard deviation for the number of people with the genetic mutation in such groups is 3.1305.

<h3>Standard Deviation</h3>

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

Let X be the number of people with genetic mutation is a group of 500,

The formula of standard deviation is given as

SD=\sqrt{n*p(1-p)} \\SD=\sqrt{500*0.02*0.98} \\SD=3.1305

The standard deviation of the given sample is 3.1305

Learn more on standard deviation here;

brainly.com/question/28290366

#SPJ1

4 0
1 year ago
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