All categories

2 years ago

What is -2x-x+8 I'm too tired to do this lol

Mathematics

2 answers:

Tatiana [17]2 years ago

6 0

You can sum the two terms involving x:

$-2x-x+8=-3x+8$

There's nothing else we can do with this expression. If you need to find its root, we have

$-3x+8=0 \iff 3x=8 \iff x=\dfrac{8}{3}$

klemol [59]2 years ago

5 0

The correct answer to this would be -3x+8

You might be interested in

I need help here is the problem

leva [86]

Answer:

12.96pi

Step-by-step explanation:

area = r^2 *pi

= 3.6^2 * pi

= 12.96pi

5 0

2 years ago

Read 2 more answers

What's 6 to the power of 900?

zheka24 [161]

Answer:

5400

Step-by-step explanation:

6x900 =5400 this is the correct answer

4 0

3 years ago

Read 2 more answers

You deposit $5000 in an account earning 8% interest compounded monthly. How much will you have in the account in 15 years?

Rasek [7]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$5000\\ r=rate\to 8\%\to \frac{8}{100}\dotfill &0.08\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &15 \end{cases}$

$\bf A=5000\left(1+\frac{0.08}{12}\right)^{12\cdot 15}\implies A=5000(1.00\overline{66})^{180}\implies A\approx 16534.61$

5 0

2 years ago

What two numbers multiply to -8 and add to -4

Ronch [10]

Answer:

-2-2√3, -2+2√3

Step-by-step explanation:

Let x represent one of the numbers. Then the other number is -4-x. We want the product to be -8:

x(-4-x) = -8

-4x -x^2 = -8 . . . . . eliminate parentheses

x^2 +4x = 8 . . . . . . multiply by -1

x^2 +4x +4 = 12 . . . add 4 to complete the square

(x +2)^2 = 12

x +2 = ±√12 = ±2√3

x = -2±2√3

The two numbers are -2-2√3 ≈ -5.4641, and -2+2√3 ≈ 1.4641.

7 0

3 years ago

What property describes 6 + 0 = 6

Pachacha [2.7K]

This would be the identity property.

3 0

3 years ago