Answer:
3628800
Step-by-step explanation:
10! = 10 × 9! = 10 × 362880
= 3628800
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A number is multiplied by 10 by shifting the decimal point one place to the right. Here, that means appending a place-holder zero to the number.
The answer is B
Comment for an explanation
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Answer: D
Step-by-step explanation:
Substitute values for x until they all work.
A. y = 2 x 2 + 5 = 9 fail
B. y = 2 x 2 - 6 = -2 fail
C. y = -2 x 2 - 5 = -9 fail
D. y = -0.5 x 2 - 5 = -6 ok
y = -0.5 x 5 - 5 = -7.5 ok
y = -0.5 x 6 - 5 = -8 ok

<u>Answer</u><u>:</u>
<u>a.</u><u> </u><u>7</u>
Hope you could understand.
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