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4 years ago

The Earth's circumference is about 40,000 kilometers and the orbit of the International

Mathematics

1 answer:

MAXImum [283]4 years ago

8 0

Answer:idk

Step-by-step explanation:

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Perform each indicated operation

MissTica

Answer: $\frac{x+6}{x-4}$

Step-by-step explanation:

First you need know some general formuals of factorization such as

$x^3+y^3=(x+y)(x^2-xy+y^2)$ so you have $x^3+64=X^3+4^3=(x+4)(x^2-4x+4^2)$

And, $x^2-y^2=(x-y)(x+y)$ so you have $2x^2-32=2(x^2-16)=2(x^2-4^2)=2(x+4)(x-4)$

If you use them, then you can modify your equations such as

$\frac{x^3+64}{2x^2-32}$ ÷ $\frac{x^2-4x+16}{2x+12}$ = $\frac{(x+4)(x^2-4x+4^2)}{2(x+4)(x-4)}$ ÷ $\frac{x^2-4x+16}{2(x+6)}$ = $\frac{(x+4)(x^2-4x+4^2)}{2(x+4)(x-4)} . \frac{2(x+6)}{{x^2-4x+16}} = \frac{1}{x-4}.\frac{x+6}{1}=\frac{x+6}{x-4}$

4 0

3 years ago

Which number is irrational

alina1380 [7]

For this case, we have by definition, that an irrational number is a number that can not be expressed as a fraction $\frac {a} {b}$ , where a and b are integers and b is nonzero.

Some examples are:

$\sqrt {2}, \sqrt {3}, e, \pi.$

So, that the answer is $\pi.$

Answer:

Option C

4 0

3 years ago

7/12 × 6\14 please help

Mama L [17]

7/12*6/14
7*6=42
12*14=168
=42/168
=0.25 =1/4

6 0

3 years ago

Which expression is equal to 4 x 3 x 5?

kupik [55]

Answer:

Step-by-step explanation:

Step 1: Write expression

4 × 3 × 5

Step 2: Multiply

12 × 5

3 0

3 years ago

Read 2 more answers

Each weekday Davina rides her bike from her house to school. After school, she rides to the library. Then Davina takes the same

marin [14]

Answer:

I believe the answer is 20

Step-by-step explanation:

She rides from her house to school which is 4 kilometers. Then she rides from school to the library which is 6 kilometers. The total so far is 10 kilometers.The question then says she takes the same route home so you would multiple 10 by 2 so the answer should be 20 kilometers

3 0

3 years ago

Read 2 more answers