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
Arisa [49]
3 years ago
11

Bruce added some chlorine to the water in a pool. The chlorine evaporated at a fixed rate every week. The table below shows the

amount of chlorine f(n), in ounces, that was left in the pool after n weeks:
Mathematics
1 answer:
jok3333 [9.3K]3 years ago
5 0
The answer is F(n)=54 (0.5)^(n-1)
You might be interested in
You’re baking a circular cake for a party. Your cake can be any size you want. What will the radius of your cake be and how many
REY [17]
What will the radius of your cake be?

This is a problem of geometry. Given that the cake is circular, the greater the cake the greater the radius of it. So, as shown in the figure 1, the radius will be the distance from the center to any extreme point of the circle.

How many slices will you be able to cut?

The total area of a circle is given by:

A= \pi  r^{2}

We need to fin how many slices will be cut, so let's calculate the area of the circular sector which can be obtained simply applying rule of three, so:

A_{cs}= \pi r^{2}( \frac{\theta}{2\pi})= \frac{r^{2}\theta}{2}

Let's name n the number of slices, if we divide the total area by n this result, each area  must equal, then:

\frac{\pi r^{2}}{n}=\frac{r^{2}\theta}{n}

Finally, we will be able to cut:

n= \frac{2\pi}{\theta} Slices

7 0
3 years ago
*PLEASE HELP ME* (math attachment) IT'S PAST MIDNIGHT I'M TIRED AND DESPERATE
Luda [366]
<h3><u>Answer:</u></h3>

D

<h3><u>Step-by-step explanation:</u></h3>

let's rewrite this

x + y = 11                  <em>- equation 1</em>

   - x = - y - 9           <em>- equation 2</em>

solve the first equation for x

x + y = 11            (add -y to both sides to get x by itself)

     x = -y + 11          <em> - equation 3</em>

now substitute -y + 11 for x in the second equation

 y - 11 = - y - 9        (2 negative signs next to each other equals positive)

2y - 11 = -9              (add y to both sides)

      2y = 2               (add 11 to both sides)

        y = 1                (divide both sides by 2)

now substitute y = 1 into equation 3

x = -1 + 11

x = 10

therefore, x = 10 and y = 1. in coordinates, x goes before y

therefore, the coordinates are (10, 1)

therefore the answer is D

good luck my friend! hope this helped a lot! also, i found a website if you don't fully understand this, its called MathPapa, i didn't use it to work this out so my working might be different but it definitely helps me sometimes. for an equation like this, type it likes this: x+y=11; -x=-y-9

-cheesetoasty

3 0
3 years ago
Read 2 more answers
please help please help please please please please please please please please please please please please please please please
7nadin3 [17]
Answer:
1) -10^3 (-10 to the power of 3)
2) r^5 (pie to the power of 5)
3) 1/2^2 + x^3 (1/2 to the power of 2 + x to the power of 3)
3 0
3 years ago
Find the first three terms of the sequence below n² – n + 4
sergejj [24]

Answer:

First three terms of given sequence are

9, 13, 17

Step-by-step explanation:

3 0
2 years ago
Please help ASAP!!! Will give Brainly!!! What are the x-intercepts of the parabola?
svetoff [14.1K]

Answer:

I think it's

4.5

5

0.4

0

0

5

4

maybe, maybe not.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the greatest common factor of the terms of the polynomial below?<br> 1244 - 6x² + 9x²
    5·1 answer
  • How many ways can you arange the letters in the word cube
    14·1 answer
  • Solve the equation, and check the solution. If applicable, tell whether the equation is an identity or a contradiction.
    7·2 answers
  • Calvin bought 20 pencils at 0.45 dollars each. How much change did he get from a 10 dollar bill?
    9·2 answers
  • I need to know the answers ASAP
    11·1 answer
  • Urgent need the answers plz help.
    8·1 answer
  • Simplify the expression: ∣∣112 − 56∣∣ − (25 + 110)
    14·2 answers
  • Please help me, thank you
    12·1 answer
  • I need help number 15​
    5·1 answer
  • -3x + 7 - 5x &lt; 15 true ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!