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Rainbow [258]
3 years ago
15

Calculate the mean of the number set 5 10 12 4 6 11 13 5

Mathematics
1 answer:
son4ous [18]3 years ago
3 0
For calculating the mean, you want to add up all of the numbers then divide by how many numbers there are. So you'd do:

5+10+12+4+6+11+13+5 then divide that by 8

The answer to your question is: 8.25
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Which statement is true about the polynomial 3x?y2 - 5xy2 - 3x²y2 + 2x2 after it has been fully simplified?
Sladkaya [172]
4 terms, degree of 2

The terms is the amount of “numbers” you have, which is 4
The degree is the highest power, which is x^2
6 0
3 years ago
Read 2 more answers
Every minute, 2.2gallons of water flows from a shower. A family of 5 people showers for an average of 9 minutes per person every
satela [25.4K]

Answer:

the whole family uses a total of 99 gallons in 1 morning

Step-by-step explanation:


7 0
3 years ago
Find the perimeter. Simplify your answer.<br> 4c+9<br> 70-5<br> 5c+2<br> 5c-3
pickupchik [31]

Answer:

Step-by-step explanation:

Perimeter = 4c + 9 + 7c - 5 + 5c + 2 + 5c - 3

                = 4c +7c + 5c +5c + 9 - 5 + 2  - 3

                 = 21c + 3

7 0
2 years ago
The ratio of wooden bats to metal bats in
lapo4ka [179]
<h3>Answer: 10 metal bats</h3>

"Ratio of wooden bats to metal bats is 2 to 1" basically means "there are twice as many wooden bats (compared to metal ones)". So if we had 3 metal bats, then we'd have 2*3 = 6 wooden bats. If we had 7 metal bats, then we have 14 wooden ones (because 2*7 = 14). And so on. The basic rule is to multiply the amount of metal bats by 2 to get the amount of wooden ones.

We can go in reverse to divide the amount of wooden bats to get the amount of metal ones. So 20/2 = 10 is the amount of metal bats.

------------------

A more formal approach is to use the proportion below to solve for x

20/x = 2/1

20*1 = x*2

20 = 2x

2x = 20

2x/2 = 20/2

x = 10

and we get the same answer.

6 0
3 years ago
A 12 ft. ladder is leaning against a house. The ladder makes a 60° angle with the ground. Use special right triangles to find ho
OlgaM077 [116]

Given:

The length of the ladder  = 12 ft

The angle of ladder with ground = 60 degrees

To find:

How far up the building the ladder will reach.

Solution:

Using the given information draw a figure as shown below.

We need to find the vertical distance between the top of ladder and the ground.

Let x be the required distance.

In a right angle triangle,

\sin \theta=\dfrac{Perpendicular}{Hypotenuse}

In the below triangle ABC,

\sin A=\dfrac{BC}{AC}

\sin 60^\circ=\dfrac{x}{12}

\dfrac{\sqrt{3}}{2}=\dfrac{x}{12}

Multiply both sides by 12.

\dfrac{\sqrt{3}}{2}\times 12=x

6\sqrt{3}=x

Therefore, the ladder will reach 6\sqrt{3} ft far up the building.

4 0
2 years ago
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