3 years ago

Domain is the set of all input values, while range is the set of all:

Mathematics

1 answer:

mojhsa [17]3 years ago

4 0

Answer: I think it’s B. Output values

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For all values of x, f(x) = x^2 + 3x and g(x) = x - 4 Show that fg(x) = x^2 - 5x + 4

Westkost [7]

Answer:

f(g(x)) = x² - 5x +4

Step-by-step explanation:

Explanation

Given that the functions

f(x) = x² + 3 x and g(x) = x-4

f(g(x)) = f(x -4) (∵ g(x) = x-4)

= (x-4)² + 3(x-4)

= x² - 2(4)x + 4² + 3x -12

= x² - 8 x + 16 + 3x -12

= x² - 5x +4

∴ f(g(x)) = x² - 5x +4

4 0

3 years ago

Is 3x+4y=8 parallel or perpendicular

daser333 [38]

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3 years ago

An element with mass 130 grams decays by 22% per minute. How much of the element is remaining after 7 minutes, to the nearest 10

shepuryov [24]

22.8 grams of element will be remaining after 7 minutes

Further explanation:

Given

$Mass\ of\ element=130g\\Percentage\ of\ reduction=22\%$

The element reduces (1-22%) in one minute.

The process will be repeated 7 times for 7 minutes

If we have to calculate the amount of element after 7 minutes

then the total reduction will be: (1-22%)^7

$Remaining\ amount=130*(1-22\%)^7\\=130*(1-0.22)^7\\=130*(0.78)^7\\=130*0.18\\=22.84g\\Rounding\ off\ to\ nearest\ tenth\\=22.8g$

22.8 grams of element will be remaining after 7 minutes

Keywords: Decay, Percentage

Learn more about percentage at:

#LearnwithBrainly

6 0

3 years ago

what equations best represents the problem? You drove for 425 miles at 60 mph. How long did it take you?

Kisachek [45]

If you drove for 425 miles at 60 mph, you would get there in 7 hours and 8-ish minutes. 425 divided by 60 is 7.08333333333333.

7 0

3 years ago

Read 2 more answers

1. The diameter of a circle is 36 centimeters. Find the radius. (Section 13.1)

Pepsi [2]

36/2=18
18 would be your answer the radius is half of the diameter

5 0

2 years ago