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Grace [21]
3 years ago
15

The standard deviation of the tap water data is 1.086. The standard deviation of the salt water data is 1.107. Which explains wh

y the standard deviation is the best measure of variability to use to compare the data?
Mathematics
2 answers:
Levart [38]3 years ago
7 0
It's A. Nearly Symmetrical. 
egoroff_w [7]3 years ago
3 0

Answer:The answer is A

Explanation: They Are nearly symmetrical

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Pls help! will mark branliest!!! :)
Ket [755]

The area of the house is the amount of space on the house.

  • The length of the addition is x + 20
  • The area of the original house is x^2 + 30x + 200

<h3>The length of the addition</h3>

The area of the addition is given as:

Area = x^2 + 10x - 200

Expand

Area = x^2 + 20x - 10x - 200

Factorize

Area = x(x + 20) - 10(x + 20)

Factor out x + 20

Area = (x -10)(x + 20)

The width of the addition is x - 10.

Hence, the length of the addition is x + 20

<h3>The area of the original house</h3>

The dimension of the original house is

x + 20 by x + 10

So, the area is:

Area =(x + 20)(x + 10)

Expand

Area =x^2 + 20x + 10x + 200

This gives

Area =x^2 + 30x + 200

Hence, the area of the original house is x^2 + 30x + 200

Read more about areas at:

brainly.com/question/24487155

8 0
2 years ago
Determine if the expression – 6y 25 – is a polynomial or not. If it is a
harkovskaia [24]

Answer:

7346

Step-by-step explanation:

hopefuly this help you!

6 0
3 years ago
2x^2-5x+1=4 factor step by step please
lisov135 [29]

Answer in screen shot below

6 0
3 years ago
An isosceles triangle has a base of 44 inches and an altitude of 58 inches. What is the length of each leg?
const2013 [10]

Answer:

hello! although i am not really knowlegeble about this subject,  i hope the lengths below can help you solve the problem :)

Step-by-step explanation:

side length: 62.03inches

perimeter: 168.06

area:1276

if this does help you, a brainliest would be appreciated!

5 0
3 years ago
Suppose the variable x is represented by a standard normal distribution. What is the probability of x &gt; 0.3 ? Please specify
uysha [10]

Answer: 0.38

Step-by-step explanation:

Since the variable x is represented by a standard normal distribution, the probability of x > 0.3 will be calculated thus:

P(x > 0.3)

Then, we will use a standard normal table

P(z > 0.3)

= 1 - p(z < 0.3)

= 1 - 0.62

= 0.38

Therefore, p(x > 0.3) = 0.38

The probability of x > 0.3 is 0.38.

5 0
3 years ago
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