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sergejj [24]
2 years ago
9

In a study of 82 Halo game players, it was found that the ages of these players were normally distributed, with a mean age of 17

years and a standard deviation of 3 years. Find the z score for a 21 year old.
A.) 2
B.) -2
C.) -1.33
D.) 1.33
Mathematics
1 answer:
ludmilkaskok [199]2 years ago
4 0

Answer:

c

Step-by-step explanation:

and bro i am i have a brother that always on my account makes me that im cheating that im not and he always blames me so thats why my bro has too many gfs and always blames me

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Every economic decision has only positive benefits. gained opportunities. unavoidable limitations. a consequence or tradeoff.
Alina [70]
Every economic decision has "a consequence or tradeoff" - this final answer choice is correct. Every time that an individual, business, or institution makes an economic decision, they always forgo an opportunity to use the same capital or resources for other endeavors. As such, there is a tradeoff incurred by not making the decision to use the resource in another manner. This is known as opportunity cost and is one of the fundamental tenets of economic theory.
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3 years ago
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A store is having a sale to celebrate president's Day. Every item in the store is advertised as one fifth off the original price
olya-2409 [2.1K]
1/5th off = 20% off

80% = $140
1% = $1.75
100% = $175

Answer is $175
6 0
3 years ago
The proceeds of a $7,500.00, 10 percent simple discounted note for 85 days is
SIZIF [17.4K]

Answer:

7325.34

Step-by-step explanation:

5 0
2 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
GrogVix [38]

Answer:

  1. D. f^-1(x) = log2(x -6)
  2. 4x^2 -3 . . . . x ≤ 0
  3. B. √(x^5) -3√(x^3) -18√x

Step-by-step explanation:

1. When you replace f(x) by x and x by y, you have

... x = 2^y + 6

The first thing you do is subtract 6; then you take the base-2 logarithm:

... (x -6) = 2^y

... log2(x -6) = y = f^-1(x)

You know that to get the y-term by itself, you must subtract 6. Anything else you do will operate on (x-6). Only answer choice D has that sort of construction.

2. When you swap x and y and solve for y, you have ...

... x = -1/2√(y+3)

... -2x = √(y +3) . . . . . . multiply by -2

... (-2x)^2 = y +3 . . . . . square

... 4x^2 - 3 = y = f^-1(x) . . . . subtract 3

The range of f(x) is (-∞, 0], so that is the domain of f^-1(x). That is, f^-1(x) is defined for x ≤ 0.

3. The product of the two functions is ...

... (x -6)(√x)(x +3) = (√x)(x^2 -3x -18)

<em>Every term</em> will have a factor of √x, and the coefficients will be 1, -3, -18. Only selection B matches those conditions.

7 0
2 years ago
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Please help me whoever answers first will get brainliest.
kakasveta [241]

Answer:

C

Step-by-step explanation:

It is C because the 2 is attached to the variable Y

3 0
3 years ago
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