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Inessa [10]
3 years ago
7

Find the standard deviation of

Mathematics
1 answer:
Kruka [31]3 years ago
7 0

Answer:

11.5

The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation

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Briana buys a ring marked $49.99. She receives a 20% discount. Which equation can be used to find the sale price of the ring?
sergij07 [2.7K]
Answer B, s = 49.99(0.80)
5 0
3 years ago
HELPPPPP ASAPPPP!!!!!!
In-s [12.5K]

Hey there!!

Let's take the number as x and y

Given,

The sum of x and y = 12

One number is 2 more than the other

Let's take y = x + 2

Equations

x + y = 12

As we know y = x + 2 , plug the value in

x + x + 2 = 12

2x + 2 = 12

Subtract 2 on both sides

2x = 10

Divide by 5 on both sides

x = 5

y = 2 + x

y = 7

The numbers are 5 and 7

Hope my answer helps!

3 0
3 years ago
Read 2 more answers
Find the area of the figure.<br><br> Whoever answers within an hour get brainliest
Gemiola [76]

Answer:

48 ft^2

Step-by-step explanation:

The width and height of this parallogram are given:  6 ft and 8 ft.

The area of a parallelogram of width w and height h is A = wh.

Thus, the area of this particular parallelogram is

A = (6 ft)(8 ft) = 48 ft^2

8 0
3 years ago
Please help me with this question!
Harrizon [31]
6 pennies, 12 nickels, 8 dimes, 4 quarters = 30 coins

a) add the probability for drawing a dime and drawing a quarter together:
12/30 + 4/30 = 16/30 = 8/15
The probability is 8/15 or 53%

b) multiply the probability for drawing a penny and drawing a nickel:
6/30 x 12/30 = 72/900 = 2/25
The probability is 2/25 or 8%

c) multiply the probability for drawing quarters but take away one of the total coins and the amount of quarters each time:
4/30 x 3/29 x 2/28 = 24/24360 = 1/1015
The probability is 1/1015 or 0.099%
8 0
3 years ago
Find the value of x in the following diagram,<br> 3x + 10<br> Here, B and D are points of tangency.
SVEN [57.7K]

<u>Given</u>:

The given circle with center at C. The lines AB and AD are tangents to the circle C.

The length of AB is (3x + 10)

The length of AD is (7x - 6)

We need to determine the value of x.

<u>Value of x:</u>

Since, we know the property of tangent that, "if two tangents from the same exterior point are tangent to a circle, then they are congruent".

We shall determine the value of x using the above property.

Thus, we have;

AB = AD

Substituting the values, we get;

3x+10=7x-6

Subtracting both sides of the equation by 7x, we get;

-4x+10=-6

Subtracting both sides of the equation by 10, we get;

-4x=-16

Dividing both sides of the equation by -4, we get;

x=4

Thus, the value of x is 4.

5 0
3 years ago
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