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marusya05 [52]
3 years ago
5

What is 2/15+8/15 in simplest form

Mathematics
1 answer:
svp [43]3 years ago
8 0

Answer:2/3

Step-by-step explanation:

So you add 8 plus 2 And keep the denominator the same and then simplify with 5

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Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with a mean of 35.5 inches and a
erastovalidia [21]

The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

<h3>What is the average annual rainfall?</h3>

Generally, the equation for the probability is mathematically given as

P( X < x) = p( Z < x - \mu / \sigma)

Therefore

P( X > x) = 0.021

P( X < x ) = 1 - 0.021\\\\\p( X < x) = 0.979

P( Z < x - \mu / \sigma) = 0.979

The z score for the probability of 0.979 is 2.034, according to the table of z values.

x - \mu / \sigma \\\\x= 2.034

In the given equation, replace the values of mu and sigma with their respective values, and then solve for x.

x - 35.5 / 2.5 \\x= 2.034

In conclusion, The average annual rainfall will be more than 40.6 inches in about 2.1 percent of the years.

Read more about average

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7 0
2 years ago
The area of the base is 1·/4ft^2 . What is the volume of the cube?
Amiraneli [1.4K]

Answer:

1/8 ft^3

Step-by-step explanation:

The cube has equal sides. So u square root the base area and u get 1/2 ft. The length, width and height are all 1/2. So u cube the 1/2. Your final answer would be 1/8 ft^3.

5 0
3 years ago
Read 2 more answers
Suppose A and B are square matrices of the same size. Which of the following are necessarily true?
kiruha [24]

Answer:

c. (A + B)^2-A^2 + 2AB + B^2

Step-by-step explanation:

Given that:

a.

(A-B)^2 = A^2 - 2AB + B^2

If and only if AB = BA

Then;

(A-B)^2 = (A -B ) (A - B)

(A-B)^2 = A^2 - AB-BA + B^2    (FALSE)

b.

(AB)^2=A^2B^2

on true if any only if AB =BA

(AB)^2= (AB) (AB)

c.

(A+ B)^2 =  A^2 + 2AB + B^2

(A+ B)^2 = (A + B) (A+B)

(A+ B)² = A × A + A × B + B × A + B × B

(A+ B)^2 = A^2 + A*B + B*A + B^2

This is true

5 0
3 years ago
A right rectangular pyramid is sliced vertically (down) at the red line by a plane not passing through the vertex of the pyramid
konstantin123 [22]
C. Triangle
Because...
This shape is a right rectangular pyramid, which has a base of a rectangle and sides in the shape of triangles; thus, a vertical cut would make a triangle.

7 0
3 years ago
Read 2 more answers
Scarlett's haircut costs $41.
solmaris [256]

Answer:

$47.97

Step-by-step explanation:

If Scarlett pays a 17% tip <u>in addition</u> to the price of the haircut, this means that she will pay 117% of the price of the haircut (as the price of the haircut = 100%).

convert percentage to decimal:

117% = 117/100 = 1.17

multiply the cost of the haircut by 1.17:

41 x 1.17 = 47.97

7 0
2 years ago
Read 2 more answers
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