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2 years ago

If f(x) = x+7 and g(x)=1/x-13, what is the domain of (f.g) (x)?

Mathematics

1 answer:

Hoochie [10]2 years ago

4 0

Answer:

The domain of f is all real numbers (since it is a polynomial), hence the value of g(x) is not restricted in any way.

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A company has 8 mechanics and 6 electricians. If an employee is selected at random, what is the probability that they are an ele

Andre45 [30]

Answer:

$Probability = \frac{3}{7}$

Step-by-step explanation:

Given

Electrician = 6

Mechanic = 8

Required

Determine the probability of selecting an electrician

First, we need the total number of employees;

$Total = n(Electrician) + n(Mechanic)$

$Total = 6 + 8$

$Total = 14$

Next, is to determine the required probability using the following formula;

$Probability = \frac{n(Electrician)}{Total}$

$Probability = \frac{6}{14}$

Divide numerator and denominator by 2

$Probability = \frac{3}{7}$

Hence, the probability of selecting an electrician is 3/7

4 0

3 years ago

Evaluate the expression below when x = 9 and y = 12. 4(x + 6) - 3(y + 4)

Viefleur [7K]

The answer would be 12

8 0

2 years ago

What is the volume of a brick that is 20.3 cm long, 8.9 cm wide, and 5.7 cm high?

Anvisha [2.4K]

Answer:

1029.819

Step-by-step explanation:

20.3 * 8.9 * 5.7 = 1029.819

4 0

3 years ago

Read 2 more answers

Please help (20 points)

Evgesh-ka [11]

$35.\\V=\dfrac{\pi r^2h}{3}\ \ \ \ |\cdot3\\\\3V=\pi r^2h\ \ \ \ |:\pi r^2\\\\\boxed{h=\dfrac{3V}{\pi r^2}}$

$36.\\V=150\ m^3\\r=5\ m\\h=?\\\\\text{substitute}\\\\h=\dfrac{3\cdot150}{\pi\cdot5^2}=\dfrac{450}{25\pi}=\dfrac{18}{\pi}\approx\dfrac{18}{3}=6\ m\\\\Answer:\ The\ height\ is\ greater\ than\ a\ radius.$

8 0

3 years ago

I would like to know how to decrease 280 by 73%

trapecia [35]

Answer:

75.6

Step-by-step explanation:

100% - 73% = 27%

27% = 0.27

280 × 0.27 = 75.6

7 0

2 years ago