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Evgen [1.6K]
3 years ago
6

-4 - 5(x + 8) Simplify the expression

Mathematics
2 answers:
Helen [10]3 years ago
8 0

Answer:

-4-5x-40

-5x-44=0

-5x=40

-x=8

x=-8

Kryger [21]3 years ago
7 0
-5x-44 is the answer
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Solve the inequality 2x + 5 2 27
devlian [24]

Answer:

2x + 5 \geqslant 27 \\  = 2x \geqslant 27 - 5 \\  = 2x  \geqslant 22 \\  = x \geqslant 22 \div 2 \\ x \geqslant 11 \\ x[11 \:  \infty ) \\ thank \: you

5 0
2 years ago
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75% of the whole is 180. what is the whole.
earnstyle [38]

Answer: 240

180×100=18,000

18,000÷75=240

to check

.75×240=180

I hope this is good enough:

6 0
2 years ago
PLEASE HELP
melisa1 [442]

Step-by-step explanation:

4 0
2 years ago
Can someone help me please
babunello [35]

If the functions are inverses, then f(g(x)) = x.

A.

\displaystyle f(g(x))=f\left(\frac{3x+1}{3}\right)=\frac{1}{\frac{3x+1}{x}-3}\\\\=\frac{1}{\left(\frac{3x+1-3x}{x}\right)}=\frac{1}{\left(\frac{1}{x}\right)}=x

The functions are inverses of each other.

B. The domain of f(x) = x≠3. The domain of g(x) is x≠0.

The domain of f(g(x)) is (-∞, 0) ∪ (0, ∞).

The domain of g(f(x)) is (-∞, 3) ∪ (3, ∞).

4 0
3 years ago
Solve for x in the equation X^2 - 8X + 41= 0
BaLLatris [955]

Answer:

The equation has two solutions for x:

<u>x₁ = (8 + 10i)/2</u>

<u>x₂ = (8 - 10i)/2</u>

Step-by-step explanation:

Let's use the quadratic formula for solving for x in the equation:

X^2 - 8X + 41= 0

x² - 8x + 41 = 0

Let's recall that the quadratic formula is:

x = -b +/- (√b² - 4ac)/2a

Replacing with the real values, we have:

x = 8 +/-  (√-8² - 4 * 1 * 41)/2 * 1

x = 8 +/-  (√64 - 164)/2

x = 8 +/-  (√-100)/2

x = 8 +/-  (√-1 *100)/2

Let's recall that √-1 = i

x = 8 +/- 10i/2

<u>x₁ = (8 + 10i)/2</u>

<u>x₂ = (8 - 10i)/2</u>

8 0
3 years ago
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