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
myrzilka [38]
3 years ago
12

PLEASE HELP ASAP!

Mathematics
2 answers:
frez [133]3 years ago
5 0

Answer:

a. 3 is the closest choice.

Step-by-step explanation:

2 = 3.80 e^-0.20x

e^-0.20x = 2/3.8

Taking logs:

-0.20x = ln(2/3.8) = -0.64185

x =  3.2.

morpeh [17]3 years ago
3 0

Answer:

2

Step-by-step explanation:

1) Take the natural log of both sides, obtaining:

   -0.20x + ln 3.80 = ln 2

2)  Group the ln terms on the right side:  -0.20x = ln 2 - ln 3.80

3)  Find the natural logs of 2 and 3.80 and combine them:  -0.408, so that we have 0.20x = 0.408.

4) Solving for x, we get 2.03, or approx 2 (Answer C)

You might be interested in
For all the values of x,<br> f(x)=x²+3 g(x)=2x-1 <br> a) find fg(2) <br> b) find gf(2)
erik [133]

Answer:

12 and 13

Step-by-step explanation:

(a)

To evaluate f(g(2)), evaluate g(2) then use the value obtained to evaluate f(x)

g(2) = 2(2) - 1 = 4 - 1 = 3, then

f(3) = 3² + 3 = 9 + 3 = 12

--------------------------------------------

(b)

To evaluate g(f(2)), evaluate f(2) the use the value obtained to evaluate g(x)

f(2) = 2² + 3 = 4 + 3 = 7, then

g(7) = 2(7) - 1 = 14 - 1 = 13

5 0
3 years ago
Greatest common factor M^3n and 5m^5n^2
xenn [34]

Answer:

m³n

Step-by-step explanation:

8 0
3 years ago
A parking lot covers 32,420 square feet. What is its area to the nearest thousand feet? Explain how you round the number.
REY [17]
The thousands place (1000) is the fourth number to the left of the decimal, so round that one either up or down based on the number just one spot closer to the decimal, in this case, the hundreds place (100).

so we have 32,420

we can ignore the numbers that are going to become zeros as a result of the rounding . .

32,400

let's round 32,XXX either up or down based on the value in the hundreds place. if that value is 5 or greater, than we round up. if it is less than 5, than we round down.

4 is in the hundreds place, so we round down

32,000 is the answer
8 0
3 years ago
Micheal has been awarded a pay rise of 4%.His salary is £ 24 492 <br> What was his apart before?
Nesterboy [21]
Because there was a pay rise, we can write the equation as x+0.04x = 24.492 and solve for x.

x+0.04x = 24.492
1.04x = 24.492
x=23.55

His original pay was £23.55
6 0
3 years ago
there are about 100 million smartphones in the U.S. your teacher has one smartphone. what share of US smartphones does your teac
barxatty [35]
100 000 000 =  10^{8}

\frac{1}{100 000 000} =  10^{-8}
3 0
3 years ago
Other questions:
  • Which expressions are polynomials?
    8·2 answers
  • Which equation can be used to solve the problem? 
    8·2 answers
  • Rewrite the equation in standard form by expanding it. <br> y= 3 (x+2)^2 - 4
    11·1 answer
  • Solve this system of equations by graphing. First graph the equations, and then type the solution.
    7·1 answer
  • What is the vertex of g(x)=3x3x^2-12x12x+7 ​
    6·1 answer
  • How many times larger is 6*10^ 7 than 3*10^ 6 ?
    8·2 answers
  • A town of 3200, grows at a rate of 25% every year. Find the size of the city in 10 years.
    5·2 answers
  • If f(x)=-x+2, find f(4)
    13·1 answer
  • Rename 3/4 and 9/10 using the least common denominator
    13·1 answer
  • 42 67 68 70 71 78 79 80 81 84 86 86 89 99 99<br>calculate the five number summary ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!