All categories

4 years ago

Evaluate x1 - x-1 + x6 for x=2

1 answer:

6 0

If x is 2, you substitute all the x in the expression for the number 2:

2 - 2 - 1 + 12
-1 + 12
11

Hope it helped,

Homework/ study/ exam!

You might be interested in

Please help- will give brainlist. I would appreciate if you told me how you got the answer but you don’t have to

Sever21 [200]

Answer:

Step-by-step explanation:

18+15+18+15

3 0

3 years ago

Read 2 more answers

(5x^5) - (80x^3)<br> factoring

elena55 [62]

Answer:

Factoring the term $(5x^5) - (80x^3)$ we get $\mathbf{5x^3(x-4)(x+4)}$

Step-by-step explanation:

We need to factor the term $(5x^5) - (80x^3)$

First we can see that $5x^3$ is common in both terms

So, taking $5x^3$ common:

$(5x^5) - (80x^3)\\=5x^3(x^2-16)$

We can write $x^2-16$ as $(x)^2-(4)^2$

$=5x^3((x)^2-(4)^2)$

Now we can solve $(x)^2-(4)^2$ using the formula: $a^2-b^2=(a+b)(a-b)$

We can write:

$=5x^3((x)^2-(4)^2)\\=5x^3(x-4)(x+4)$

So, factoring the term $(5x^5) - (80x^3)$ we get $\mathbf{5x^3(x-4)(x+4)}$

4 0

3 years ago

What is the value of x?

Effectus [21]

Answer:7

Step-by-step explanation:

3 0

3 years ago

the local pet store bought 6 new aviary environment at a cost of 520.the owner borrowed 70% of the cost of the cages at an inter

kherson [118]

Answer:

614.25

Step-by-step explanation:

The amount of interest is computed using ...

... I = Prt . . . . . where P is the principal amount, r is the annual interest rate, and t is the number of years.

Here, the interest is ...

... I = 520×0.075×(2 5/12) = 39×29/12 = 94.25

The total amount due, interest plus principal, is ...

... 94.25 + 520 = 614.25

3 0

3 years ago

Read 2 more answers

A planet has a circular orbit around a star. It is a distance of 98,000,000 km from the centre of the star. It orbits at an aver

avanturin [10]

Answer:

91 days

Step-by-step explanation:

Given that,

A planet is at a distance of 98,000,000 km from the centre of the star.

It orbits at an average speed of 45,000 km/h.

The speed of an object is given by the distance covered divided by the time taken. So,

$v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{98,000,000}{45,000}\\\\t= $$2177.77\ h$

t = 90.74 days ≅ 91 days

So, the planet take 91 days to orbit the star.

5 0

3 years ago