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Ket [755]
3 years ago
8

How many different ways can a chairperson and an assistant chairperson be selected for a research project if there are 7 scienti

sts available? Which counting method do you use?
Mathematics
1 answer:
alukav5142 [94]3 years ago
3 0
7P2, so 42 ways - permutation method since the order of choosing matters (chair and vice chair)
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If the subtotal (the cost of all the items bought) is $110.00, what is the sales tax if the rate is 8.25%?
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6 0
3 years ago
3:2 is equivalent to
PIT_PIT [208]

Answer:

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Step-by-step explanation:

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2 years ago
Given the function f(x) = ³x – 1, evaluate f(-12).
IgorC [24]

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8 0
1 year ago
Need help!!!! ASAP!! Plzz
nadya68 [22]

Answer:

XV = 4.75

Step-by-step explanation:

TV/WV = UV/XV (similarity theorem)

TW = 9

WV = 3

UV = 19

TV = 9 + 3 = 12

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Plug in the values

12/3 = 19/XV

4 = 19/XV

XV × 4 = 19

XV = 19/4

XV = 4.75

5 0
3 years ago
The ages of several trees in a neighborhood are shown below: 27 years, 3 years, 2 years, 25 years, 5 years What is the mean age
nata0808 [166]
Mean is equal to sum/ number of values

27+3+2+25+5=62
62/5=12.4

Final answer: D, 12.4 years
5 0
3 years ago
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