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Tems11 [23]
3 years ago
8

Help plssss I need helpppp

Mathematics
1 answer:
stepan [7]3 years ago
3 0

Answer: 117cm^2

Step-by-step explanation:

Arectangle = L*W

= 54cm^2

Atrapezoid = 1/2 (a+b) (h)

= 1/2 (15+6) (6)

= 1/2 (21) (6)

= 1/2 (126)

= 63cm^2

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Out of 280 people, how many would you expect to have pepperoni as their favorite pizza topping?
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4 0
4 years ago
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I will give brainliest to anyone who gives me a correct answer
Pachacha [2.7K]

Answer:

C

Step-by-step explanation:

Let's check the first condition [y=110, t=0] for all the choices and eliminate:

A)

y = 110e^{7t} - 80\\y = 110e^{0} - 80\\y=30

NO

B)

y = 110 - 80e^{-5t}\\y = 110 - 80e^{0}\\y=30

NO

C)

y = 30 + 80e^{-2t}\\y = 30 + 80e^{0}\\y=110

YES

D)

y = 110 - 80e^{2t}\\y = 110 - 80e^{0}\\y=30

NO

E)

y = 30 - 80e^{-4t}\\y = 30 - 80e^{0}\\y=-50

NO

Note: e^0 = 1

Only C is satisfied. But let's make sure the 2nd condition applies as well.

y = 30 + 80e^{-2t}\\y = 30 + 80e^{-\infty}\\y=30+\frac{80}{e^{\infty}}\\y>>30

Hence, y approaches 30 as t goes to infinity. 2nd condition is satisfied as well.

Answer is C

4 0
4 years ago
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