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ikadub [295]
1 year ago
6

For the functions f(x) and g(x), determine the domain of (f ∙ g)(x) (the product of f and g).

Mathematics
1 answer:
Luba_88 [7]1 year ago
7 0

Answer: Domain: (-∞, 0) U (0, ∞)

Step-by-step explanation:

\frac{12}{x} *-8x^{3}

=-96x^2

Domain: (-∞, 0) U (0, ∞)

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When Arianna left her house,her cell phone was 45% charged started losing charge at a constant rate. 4 hours after leaving her h
4vir4ik [10]

Answer:

B = 3.75t

Step-by-step explanation:

Given;

initial charge of Arianna's phone = 45%

the charge remaining in Arianna battery = 15%

If after 4hours of leaving her house, the battery had 15% remaining battery life, then the battery is discharging at the rate of ( 15% / 4hours) 3.75% per hour.

Thus, the charge remaining in Arianna's battery after she left her house is given by;

B = 3.75t

where;

t is time in hours

B is the percentage of charge remaining

6 0
3 years ago
The side length of a square is x+1. write an expression that is equivalent to the perimeter of the square.
Amiraneli [1.4K]
4x + 4

This is because there are four sides of a square, and each side is x + 1.

x + 1 + x + 1 + x +1 + x + 1 = 4x + 4
4 0
3 years ago
55 is 40% of what number
SCORPION-xisa [38]
You simply put 40 over a hundred and 55 over n (which is the number were trying to find)  so you do cross multiplication. 55 times a hundred and after you get the answer. You divide it by 40 and should get 137.5.
3 0
3 years ago
HOW TO DO THIS QUESTION ​
sdas [7]

Answer:

A ≈ 40.3 cm²

Step-by-step explanation:

The area of right Δ ACD is calculated as

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

Here A = 50.5, b = CD and h = AC , then

\frac{1}{2} × 14 × AC = 50.5

7 AC = 50.5 ( divide both sides by 7 )

AC ≈ 7.214

The area of Δ ABC is calculated as

A = \frac{1}{2} × BC × AC × sin36°

  = 0.5 × 19 × 7.214 × sin36°

  ≈ 40.3 cm² ( to 3 sf )

3 0
2 years ago
Read 2 more answers
At a certain time of day, a 30-foot building casts a 10 foot shadow. How tall is a person who casts a 2 foot shadow?
Anni [7]

Answer:

C)  6 feet

Step-by-step explanation:

set up a proportion of height/shadow = height/shadow

30/10 = h/2

cross-multiply:

10h = 60

h = 6

4 0
2 years ago
Read 2 more answers
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