What positive number is the same as its reciprocal?

Mathematics

1 answer:

trasher [3.6K]3 years ago

4 0

1 It's the only positive number whose reciprocal is its equal

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In fractions we have to multiply 25 to get a hundred what do we do

san4es73 [151]

Answer:

muliply 25 by 4

Step-by-step explanation:

25×4 =100

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3 years ago

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What is the difference between 4/9 and -5/9

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Answer:

The difference between 4/9 and -5/9 is that -5/9 is a negative fraction while 4/9 is a positive fraction.

Step-by-step explanation:

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Tyler wonders what proportion of students at his school would dye their hair blue if their parents would let them. He surveyed a

pshichka [43]

Using the proportion concept, it is found that:

According to Tyler's sample, the estimate is of 0.2 = 20%.

According to Kyran's sample, the estimate is of 0.17 = 17%.

Due to the higher sample size, Kyran's estimate is more accurate.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and larger sample sizes lead to more accurate predictions.

In Tyler's sample, 2 out of 10 students would dye their hair blue, hence:

p = 2/10 = 0.2.

In Kiran's sample, 17 out of 100 would, hence:

p = 17/100 = 0.17.

Due to the higher sample size, as 100 > 20, Kyran's estimate is more accurate.

More can be learned about proportions at brainly.com/question/24372153

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2 years ago

Paul has three cube-shaped boxes. Each box is a different size

qwelly [4]

Answer:

See explanation

Step-by-step explanation:

Paul has three cube-shaped boxes. Each box is a different size and they are stacked from the largest to the smallest. Some information about the boxes is given below.

The combined volume of the three boxes is 1,197 cubic inches.
The area of one face of the medium box is 49 square inches.
The volume of the smallest box is 218 cubic inches less than the volume of the medium box.

1. The medium box has the area of one face of 49 square inches, then

$a^2=49\\ \\a=7\ inches$