1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gnesinka [82]
4 years ago
15

I will give brainliest to anyone who gives me a correct answer

Mathematics
1 answer:
Pachacha [2.7K]4 years ago
4 0

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

You might be interested in
A sailboat travels a distance of 2 1/2 miles in 1/6 of an hour. Which complex fraction represents the unit rate in miles per hou
Nikitich [7]
At first glance, prolly c
3 0
3 years ago
You drive 230 miles on 8 gallons of gas at this rate how many miles will you get from 10 gallons??
Evgesh-ka [11]

Answer: 287.5

Step-by-step explanation: because 8 devided by 230 is 28.75 and 28.75 times 10 is 287.5

5 0
3 years ago
What value is equivalent to 13 − 2(1 − 15) ÷ 4? A) -38.5 B) -26 C) 7.25 D) 20
Klio2033 [76]

Answer:

D. 20

Step-by-step explanation:

13 - 2 (1-15) ÷ 4

First deal with whatever in the parentheses

13 - 2 (-14) ÷ 4

Multiply and divide from left to right

13 - (-28) ÷ 4

13 - (-7)

The negatives would cancel so add 13 and 7 to get 20

5 0
4 years ago
Read 2 more answers
What is the fraction twelve twentieths in it's simplest form
tatyana61 [14]
We start with 12/20. Half both numbers = 6/10. Half again = 3/5.
Because 3/5 are both odd numbers and can't be made smaller without using decimals (which you don't want to use within a fraction), 3/5 is the simplest form for this fraction.
7 0
4 years ago
Read 2 more answers
Find the area of an acute triangle with a base of 13 inches and a height of 5 inches.​
MArishka [77]
  • Base=B=13in
  • Height=H=5in

Area:-

\\ \rm\hookrightarrow \dfrac{1}{2}BH

\\ \rm\hookrightarrow \dfrac{1}{2}(13)(5)

\\ \rm\hookrightarrow 65/2

\\ \rm\hookrightarrow 32.5in^2

6 0
3 years ago
Other questions:
  • If a/4 = 9/a, then<br><br> a. a^2=36<br> b. 4a=9a<br> c. a+4 = 9+a<br> d. a-4 = 9-a
    13·1 answer
  • (50 points and brainliest) y=x^3-2x^2+25x-50
    12·1 answer
  • The answer to this question
    7·1 answer
  • 80% of what number is 5
    9·2 answers
  • 7 1/8 + 1/6, reduced to lowest terms
    11·1 answer
  • rita is hiking along a trail that is 13.7 miles long. so far she has hiked along 1/10 of this trail. how far has Rita hiked?
    10·2 answers
  • I NEED HELP ON THIS CONSTRUCTED RESPONSE! :(
    5·1 answer
  • 6x - 8 = 6x + 4 step by step
    11·2 answers
  • Deni made $100 yesterday at work. His boss gave him $20 for showing up, and Deni makes $10 for every hour he works. How many hou
    7·2 answers
  • 3) -4b – 9b + 3b ????????????????????????????
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!