MATHEMATICS MIDDLE SCHOOL

What are the solution(s) of x2 - 4 = 0

Answers

Answer 1

Answer:

Answer:

x = -2 or x = 2

Step-by-step explanation:

$x^2-4=0\qquad\text{add 4 to both sides}\n\nx^2-4+4=0+4\n\nx^2=4\to x=\pm\sqrt4\n\nx=-2\ \vee\ x=2$

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Is 4/5 greater than 8/12

Answers

4/5 is larger. 4/5 is 80% , 8/12 is 66.67%

What does relationship mean in math

Answers

A relationship between mathematical expressions. Like a fraction and an improper fraction

Farid takes 7/8 teaspoon of allergy medicine every day. How much medicine will he take in one week?

Answers

If Farid takes $(7)/(8)$ teaspoon of allergy medicine every day, he will take 6 and $(1)/(8)$ teaspoons of allergy medicine a week. This problem is based on the principle of multiplication.

The principle of multiplication states that when two or more numbers are multiplied by each other, a new number is obtained, called their product.

Some of the examples are 2 × 6 =10; 3 × 5 × 10 = 150; 6 × 1 × 3 = 18, etc. 1 is the multiplicative identity as any number multiplied by 1 remains the same, e.g., 6 × 1 = 6.

Given that

The number of teaspoons of allergy medicine Farid takes every day = $(7)/(8)$ .

The number of days in a week = 7.

The number of teaspoons of allergy medicine Farid takes in a week $=(7)/(8)* 7$

$=(49)/(8) \n=6(1)/(8)\n=6+(1)/(8)$ .

Thus, Farid takes 6 and $(1)/(8)$ teaspoons of allergy medicine a week.

Learn more about Multiplication here:

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he takes 7/8 per day and there are 7 days in a week
so multiply 7/8 by 7/1 since 7 divided by 1 is still 7.
(7/8) x (7/1)
then multiply the top numbers for numerator and bottom for denominator
7 x 7 49
you get
8 x 1 8

if you need to go further you divide the 49 by 8 and get 6.125.
6.125 = 6 and 1/8
6 is the whole number and .125 out of 100 equals 8

Is 2.78778777... a irational number

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YES!!! 2.78778777 is an irrational number because it has endless numbers, and a irrational number cant be put as a fraction but rational numbers can be put as a fractio!!

If by the ellipses you mean to say that the number 7 repeats forever after that point, then it is not irrational. Any number which can be expressed with repeating decimals is not irrational. For example, pi is an irrational number because it has no repeating decimals, but 0.33333333... is not irrational because it can be expressed by simply saying 0.3 repeated.

What is 17 over 21 in simplest form plz answer i need help

Answers

17/21It is already in its simplest form.17 is a prime number.

Because 17 is already a prime number , this means that your question answered it's self. 21/17 is it's self in simplest form.

i hope this helps?

Rewrite using the Distributive Property, the evaluate. 4 x 35

Answers

distributive property is the switch in number
35*4=140
Hope this helped

35*4 is the distributive property for 4*35

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