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Lorico [155]
3 years ago
14

Preimage Poster = 9 in by 12 in

Mathematics
1 answer:
Ann [662]3 years ago
7 0
Yes but I’m not sure what you are trying to ask <3
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The sum of the angles of a triangle is 180°. If one angle of a triangle measures x and the second angle measures
serious [3.7K]

Answer:

the third angle= 180-x-(4x+15)

Step-by-step explanation:

if we subtract the two other angles the result will be the measure of the last one

4 0
3 years ago
Find the exact volume of a sphere with a radius of 6 inches
ladessa [460]

Answer:

904.778 in.

Step-by-step explanation:

Formula for volume of sphere:

4/3×(3.1426)×(radius)^3

=904.778 inches

4 0
2 years ago
Inportant inpotant ;(
kondor19780726 [428]

Answer:

1 option or last option are the best choices sorry if I'm wrong.

3 0
2 years ago
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What is margin of error??
Tems11 [23]

Answer:

The margin of error for a sample size of 250 is 6

Step-by-step explanation:

The margin of error is given as

1/square root of the sample size

Thus, margin of error for a sapless size of 250 is

1/√250

= 1/15. 811

= 6

8 0
3 years ago
The amount of chlorine in a swimming pool is proportional to the volume of water. The pool has 2.5 milligrams of chlorine per li
stira [4]

Answer:

There are <u>20,000 milligrams</u> chlorine in the pool.

Step-by-step explanation:

Given:

The chlorine per liter of water in the pool is 2.5 milligrams.

The  volume of water in the swimming pool is 8000 gallons.

Now, to find the quantity of chlorine in the pool.

Let the quantity of chlorine be x.

The gallons of water in the swimming pool = 8000.

The milligrams of chlorine per liter of water in the pool = 2.5.

According to question, the amount of chlorine in the swimming pool is proportional to the volume of water.

So, 2.5 mg of chlorine is equivalent to 1 liter.

Thus, x is equivalent to 8000.

Now, to get the quantity of chlorine by using cross multiplication method:

\frac{2.5}{1} =\frac{x}{8000}

<em>By cross multiplying we get:</em>

20000=x\\\\x=20,000\ mg.

Therefore, there are 20,000 milligram chlorine in the pool.

6 0
3 years ago
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