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
egoroff_w [7]
3 years ago
9

The the intensity I of light (in lumens) in a certain lake at a depth of x feet is given by log(1/12) = -0.00235x. What is the i

ntensity of the light (in lumens) at a depth of 20 feet? Round your answer to the nearest hundredth and label 1 your answer.​
Mathematics
1 answer:
ch4aika [34]3 years ago
4 0

Answer:

11.45 lumens

Step-by-step explanation:

We are given that

log(I/12)=-0.00235x

Where x=Depth

I=Intensity of light

We have to find the intensity of the light at a depth of 20 feet.

Substitute the value of x

log(I/12)=-0.00235\times 20

log(I/12)=-0.047

\frac{I}{12}=e^{-0.047}

I=12e^{-0.047}

I=11.45 Lumens

Hence, the intensity of the light (in lumens) at a depth of 20 feet=11.45 lumens

You might be interested in
What is the equation of the line that is perpendicular to the line y=1/2x+7 and passes through the point (6,2)
aev [14]
<span>y=1/2x+7, slope is 1/2
</span><span>perpendicular so slope is opposite and reciprocal
</span>slope = -2
<span>passes through the point (6,2)
</span>y - 2 = -2(x - 6)
y - 2 = -2x + 12
y = -2x + 14

answer
equation y = -2x + 14
5 0
4 years ago
Read 2 more answers
An oil spill spreads 25 meters every 1/6 hour. What is the area spill after 2 hours?
Scrat [10]
Since it’s 25 m ever 1/6 hour, it’s 150 m every hour, so it’s 300 m in two hours
7 0
4 years ago
Identify and describe the transformation " (x,y) to (x+4,y-6)
NemiM [27]
It'd go down 6 and right 4
6 0
3 years ago
A store sells cans of paint for $8 each, and brushes for $12 each. If they sell 100 items, and
Montano1993 [528]

Answer:

B.) 80 cans, 20 brushes

Step-by-step explanation:

Let the cans of paint be represented by variable <em>p</em> , and brushes by variable <em>b</em>

The first equation would be ; p + b = 100

p = 100 - b

The second equation would be;

8p + 12b = 880

Replace p in the equation by (100-b);

=8(100-b) + 12b =880

=800 - 8b +12b = 880

= subtract  800 from both sides to get;

4b = 880-800

4b = 80

divide both sides by 4 to solve for b;

b= 80/4

b = 20

If p + b = 100, then p+20 = 100

p = 100-20

p = 80

Therefore, they sold 80 cans of paint and 20 brushes

5 0
3 years ago
IF P(Q AND R) =0.2 ANDP(R)=0.8 FIND P(Q/R)
expeople1 [14]
P(Q/R) = P(Q and R)/P(R) = 0.2/0.8 = 0.25
3 0
3 years ago
Other questions:
  • Write each rational number in the form a/b, where a and b are integers.
    8·1 answer
  • What is the value of arcsin(2√2)?<br> answer: it's the picture attached. <br>​
    12·1 answer
  • Which expression is equivalent to 5(8 + 9)?
    15·2 answers
  • Why doesn't finny want anybody to know he broke the school record?
    14·1 answer
  • What is the value of x?
    15·1 answer
  • Cynthia, Annie, and Suz went to Pepe's Pizza Palace for dinner after band practice. They shared a large pizza and each girl orde
    7·1 answer
  • 9) 6a² + 3 = 435<br> How to solve this equation by taking square root?
    12·1 answer
  • W(t)W, left parenthesis, t, right parenthesis models the daily water level (in \text{cm}cmstart text, c, m, end text) at a pond
    12·2 answers
  • 4(x-2+y) what is this for the distributive property​
    11·1 answer
  • 1) Una bicicleta circula en línea recta a una
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!