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tino4ka555 [31]
2 years ago
12

Solve each equation mentally 1/7 × x = 1

Mathematics
1 answer:
Firlakuza [10]2 years ago
4 0

Answer:

7

Step-by-step explanation:

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According to a college survey, 22% of all students work full time. Find the standard deviation for the random variable X, the nu
mixer [17]

Answer:

1.66

Step-by-step explanation:

Calculation to find the standard deviation for the random variable X of the number of students who work full time in samples of size

Using this formula

Standard deviation(X)=√np(1−p)

Where,

n represent the number of students=16

p represent the percentage of all students who work full time=22

Let plug in the formula

Standard deviation(X)=√16(0.22)(1−0.22)

Standard deviation(X)=√(3.52)(0.78)

Standard deviation(X)=√2.7456

Standard deviation(X)=1.656

Standard deviation(X)=1.66 (Approximately)

Therefore the standard deviation for the number of students who work full time in samples of size 16 will be 1.66

8 0
3 years ago
The perimeter of a rectangle is 72 m. The width of the rectangle is 16 m. What is the area of the rectangle?
liq [111]

Answer:

320m

Step-by-step explanation

a rectangle has four sides, two pairs of identical sides. So two sides are 16. So that adds up to 32. Perimeter is all sides added together. so it has to add up to 72. 72 minus 32 is 40, so two of the sides have to be 40. Area is length times width, so 16 times 20, which is 320.

6 0
3 years ago
Select the relationship that does represent a function.
maksim [4K]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
Identify tan P as a fraction and as a decimal rounded to the nearest hundredth. HELP PLEASE!!
irakobra [83]

tangent=\dfrac{opposite}{adjacent}

We have:

opposite=8.5\\adjacent=16

Substitute:

\large\boxed{\tan P=\dfrac{8.5}{16}\approx0.53}

8 0
3 years ago
Which angles are linear pairs ?​
Alekssandra [29.7K]

Is there a picture to find the answer?

4 0
3 years ago
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