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Ira Lisetskai [31]
4 years ago
13

|- x| ≥ 0 for all real numbers x . True or False

Mathematics
1 answer:
Strike441 [17]4 years ago
5 0

Answer:

True

Step-by-step explanation:

Taking the absolute value of a number, whether it's negative or positive, always returns either a positive value or zero.

Lets say we have a number line with the point A on it. Think of the absolute value of A as the distance between point A and zero. Since the distance cannot be negative, the absolute value will always return a positive value.

A positive number is always greater than zero, and zero is equal to zero. Therefore, the answer is True.

I hope this helps. :)

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Identify the function as exponential growth or decay. y = a * (8/5) ^ 0
sukhopar [10]

Answer:

We conclude that the function represents exponential growth.

Step-by-step explanation:

Given the function

y=a\left(\frac{8}{5}\right)^t

As the function is of the form

  • y=abˣ

and base 'b' > 1

We know that when the base 'b' of the exponential function > 1, meaning those numbers will get bigger, we call it exponential growth.

As b=8/5 is bigger than 1.

i.e. 8/5 > 1

Thus, we conclude that the function represents exponential growth.

4 0
3 years ago
The first three steps in writing f(x) = 40x + 5x2 in vertex form are shown. What is the function written in vertex form?
pychu [463]
F(x) = 5(x + 4) – 80
f(x) = 5(x + 8) – 80
f(x) = 5(x + 4)2 – 80
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4 0
3 years ago
Write the fraction 27/63 in simplest form ?
BARSIC [14]

Answer:

3/7

Step-by-step explanation:

both of them divisible by 9

5 0
3 years ago
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What's the answer to 1&2 plzz
Alexeev081 [22]
The first one is A.    And Sowy but meh don't know the second one... 
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3 years ago
Please help with multiple choice question
Volgvan

Answer:

D:   {9, 21, 33}

Step-by-step explanation:

Ken worked 2, 8 and 14 hours on 3 separate days.

For working 2 hours, his earnings were f(2) = 2(2) + 5, or 9;

For working 8 hours, his earnings were f(28) = 2(8) + 5, or 21; and

For working 14 hours, his earnings were f(14) = 2(14) + 5, or 33

Thus, the range of this function for the days given is {9, 21, 33} (Answer D)

7 0
3 years ago
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