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3 years ago

What does a letter with a line over it mean

Mathematics

1 answer:

Helga [31]3 years ago

7 0

Step-by-step explanation:

The line above the letter means "complement". If X is a set, the the complement of X (denoted by X with a line above it) is the set of all things not in X...If X is a set, then the complement of X (denoted by X with a line above it) is the set of all things not in X.

Sorry if it was complicated

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Joe has read 140 pages of his 300 page book what percent of the book has he read

Natalija [7]

<h2>Answer:</h2>

He has read 46.66 %

<h2>Step-by-step explanation:</h2>

Lets find the percentage

total pages are 300 and he has read 140

140/300 = 0.4666

Converting this into percentage again

We will multiply the decimal by 100

0.4666 x 100 = 46.66 %

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3 years ago

A basketball team scores 37 points in one quarter is the number 37 prime or composite show your work

Andrews [41]

Answer: Prime

Step-by-step explanation: To tell if 37 is a prime number or a composite number, begin by finding the factors of 37.

To find the factors of 37, begin by dividing 37 by 1 which gives us 37. This means that 1 and 37 are factors.

Notice however that 37 is not divisible by any other number except 37. When we divide 37 by 37 we get 1. Since 37 and 1 are repeat factors, the only factors of 37 are 1 and 37.

When there are only two factors of a number, we call the number prime.

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3 years ago

(x^2-9)/(x+1) ÷ (x^2-6x+9)/(7x+7) reduced form?

dolphi86 [110]

Hello,

$\dfrac{\dfrac{x^2-9}{x+1}}{\dfrac{x^2-6x+9}{7x+7}}=7*\dfrac{(x-3)(x+3)*(x+1)}{(x+1)(x-3)^2}=7*\dfrac{x+3}{x-3}$

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3 years ago

1/2 (3/2 y + 1/3) = -1/2 (y- 5/2)

dem82 [27]

1/2 [ (3/2)y + 1/3] = -1/2 [y-5/2]

(3/2)y + 1/3 = -(1/2)y + 3

(3/2 + 1/2)y = 3 - 1/3

2y = 8/3

y = 4/3

y = 1.33

#$#HOPE YOU UNDERSTAND #$#

#$¥THANK YOU ¥$#

❤ ☺ ☺ ☺ ☺ ☺ ☺ ❤ 

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3 years ago

The measure of two sides of a triangle are given. If the perimeter is 11x^2 - 29x + 10, find the measure of the third side.

bazaltina [42]

Answer:

I would say use photomath if you cant find your answer.

Step-by-step explanation:

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3 years ago