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3 years ago

What's (1/2)^2 ????????????????????

Mathematics

2 answers:

Leni [432]3 years ago

8 0

The answer is 1/4 because u have to multiply 1/2 by 1/2 which is 1/4

zhannawk [14.2K]3 years ago

3 0

This is One-half squared. That means you must multiply it by itself twice. This would result in 1/4 or one-fourth.

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A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have

likoan [24]

72 is the minimum grade he must get on the last test in order to have an average of 77.

<u>Step-by-step explanation:</u>

The grades of a student are given 72,91,78,72 and the grade of his last test is not given.

You have to find the minimum grade the student shall get, so that the student average must be 77.
The four grades are already given. Therefore, we need to find only the fifth grade.

The term average is defined as the sum of all the data in a set divided by the number of data in a set.

Here, the number of data is 5. (Because the students has 4 grades plus one grade for his last test).

The average he should get is 77.

Average = Sum of all grades / number of grades

Let, 'x' be the grade of the last test.

⇒ 77 = (72+91+78+72+x) / 5

⇒ 77 = (313+x) / 5

⇒ 385 = 313 + x

⇒ x = 385 - 313

⇒ x = 72

The minimum grade he must get on the last test is 72.

5 0

3 years ago

How do you solve 8 -x = 20

Lunna [17]

$8-x=20\\-x=12\\x=-12$

8 0

3 years ago

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Y - 1/3 is greater than 1/8

velikii [3]

If this is a true or false question, than this is true.

4 0

3 years ago

Each year lizzy e's school purchases students agenda books, which are sold in the school store.This year, the school purchased 3

notsponge [240]

In order to make back the money they spent ($1,137.50) plus $1500, they want to make $1137.5+1500=2637.5$ $2,637.50 total.

They want to make this amount by selling 350 agendas, so divide the amount they want to make by 350 to find the amount per book:
$2637.5/350=7.54$
I rounded the answer to the nearest hundredth because the hundredth is the smallest amount we have in USD (the penny.)
So they need to charge at least $7.54 to make back their money plus $1500.

Hope I helped, and let me know if you have any questions :)

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3 years ago

What is the volume of a hemisphere with a radius of 4.9 ft, rounded to the nearest

Alexxx [7]

Answer:

Step-by-step explanation:

To round 4.9 to nearest tenth means to round the numbers so you only have one digit in the fractional part. 4.9 already has only one digit in the fractional part. Thus, 4.9 is already rounded as much as possible to the nearest tenth and the answer is: 4.9

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3 years ago

Read 2 more answers