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Orlov [11]
3 years ago
6

how many four digit passwords can be created if the first digit must be even, the second digit must be odd, the third digit cann

ot repeat either of the first two, and the fourth digit must be a 7?
Mathematics
1 answer:
vova2212 [387]3 years ago
7 0
6,347 i think maybe not but that i think
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D.All interior angles are 90 degrees

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8 0
3 years ago
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Shay works each day and earns more money per hour the longer she works. Write a function to represent a starting pay of $20 with
Masja [62]

Answer:

  • <u>Function</u>: p(x)=20(1.04)^x
  • <u>Range</u>: option D. 20 ≤ x ≤ 27.37

Explanation:

The function must meet the rule that the pay starts at $20 and it increases each hour by 4%.

A table will help you to visualize the rule or pattern that defines the function:

x (# hours)        pay ($) = p(x)

0                        20 . . . . . . . .  [starting pay]

1                         20 × 1.04 . . . [ increase of 4%]

2                        20 × 1.04² . . . [increase of 4% over the previous pay]

x                        20 × 1.04ˣ

Hence, the function is:     p(x)=20(1.04)^x

The range is the set of possible outputs of the function. To find the range, take into account that this is a growing exponential function, meaning that the least output is the starting point, and from there the output will incrase.

The choices name x this output. Hence, the starting point is x = 20 and the upper bound is when the number of hours is 8: 20(1.04)⁸ = 27.37.

Then the range is from 20 to 27.37 (dollars), which is represented by 20 ≤ x ≤ 27.37 (option D from the choices).

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