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Crazy boy [7]
3 years ago
12

Find formula for exponential function passing through points (-3,3/8) and (2/12)

Mathematics
1 answer:
Alex17521 [72]3 years ago
7 0

Answer:

y = 3 · 2ˣ

Step-by-step explanation:

Exponential function is:

y = abˣ

Plug in the points:

⅜ = ab⁻³

12 = ab²

Solve the system of equations.  Start by dividing the second equation by the first:

12 / ⅜ = (ab²) / (ab⁻³)

32 = b⁵

b = 2

Plug into either equation to find a:

a = 3

Therefore:

y = 3 · 2ˣ

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Which are composite or prime<br> 9 , 2 , 15 , 21
Luda [366]
A composite number is a number that has more than 2 factors.
A prime number is a number who only have 2 factors (1, and itself)
Factors:-

9 = 1, 3, 9 = composite
2 = 1, 2 = prime
15 = 1, 3, 5, 15 = composite
21 = 1, 3, 7, 21 = composite


So, the prime #'s  in this set are 2. The composite #'s in this set are 9, 15, and 21.

Hope I helped ya!! 
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3 years ago
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lyudmila [28]
0.7 is the correct number:)
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3 years ago
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PLEASE HELP TIMEDD
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Correct answer: A) A = the card is red, B = the card is black

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7 0
3 years ago
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Mice21 [21]

Answer:

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