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
Alexandra [31]
3 years ago
11

A tank is draining water such that the volume is given which an exponentially decreasing graph as shown in the graph below. If t

he volume was modeled with an equation of the form V=a(b)^t, where t is the number of hours then which of the following is the best value for b?
(1) b=20
(2) b=0.6
(3) b=2.8
(4) b=0.3
Mathematics
1 answer:
Anarel [89]3 years ago
3 0

Answer:

b = 0.3

Step-by-step explanation:

Given

V = ab^t

See attachment for graph

From the graph

V = 20 when t = 0

This implies that:

V = ab^t

20 = ab^0

20 = a * 1

20 = a

a = 20

Also:

V = 4 when t = 1.5

So:

4 = ab^{1.5

Substitute 20 for a

4 = 20 * b^{1.5

Divide by 20

0.2 =b^{1.5

b^{1.5} = 0.2

Take 1.5th root of both sides

b = 0.34199518933

b = 0.3 --- approximated

You might be interested in
A painter is placing a ladder to reach the third story window, which is 34 feet above the ground and
denis-greek [22]

Answer:

34 times 70

Step-by-step explanation:

7 0
3 years ago
How to solve 9x^2+9x+2
Oksana_A [137]

Answer:

factoring: ( 3 x + 1 ) ( 3 x+ 2 )

expressing/equation: 9x²= 81x

81x + 9x + 2=

9x+81x=90x

90x + 2

Step-by-step explanation:

7 0
3 years ago
Solve the equation for x. x/3 = -4 <br><br><br><br>A. -12<br>B.-7<br>C.7 <br>D.12
UNO [17]
-12 divided by 3 equals -4
6 0
3 years ago
Read 2 more answers
I think it's B but idk
Sergeu [11.5K]
You are correct. The answer is B.) They are congruent because they are corresponding angles.

Nice job! Hope this helped :)
4 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP this is important IT WILL RAISE MY GRADE ITS A TEST and if you help me god bless you
jeyben [28]

Answer:

-8/7

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • (5x – 3y + 8) + (-3x + 6y - 3)​
    11·1 answer
  • What number has the same value as 14 tens?
    14·1 answer
  • What is the answer to 2 squared
    6·2 answers
  • Sandy grew 8 turnips joan grew 6 turnips how many turnips did they grow in all
    13·2 answers
  • Imran deposited 3000 per month (at the start of month) into a saving account for 10 months. If the bank offer 6% interest compou
    11·1 answer
  • Can someone help me with this??
    6·2 answers
  • The table below shows the cube roots of different numbers:
    6·1 answer
  • Someone get me the answers ASAP!! thank you
    13·1 answer
  • HELP0ppppppppppppppp​
    10·1 answer
  • Suppose that a duck swam 22.5 kilometers in 5 hours at a constant speed how far did the duck travel
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!