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worty [1.4K]
4 years ago
12

Solve the equation for a K=4a+9ab

Mathematics
1 answer:
Verdich [7]4 years ago
6 0

Answer:

Step-by-step explanation:

k = 4a + 9ab

4a + 9ab = k

a*(4 + 9b) = k

a=\frac{k}{(4+9b)}

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The pool holds 15069 of water and is leaking at a rate of 4 gallons per day how many gallons will remain in the pool after 141 d
Veronika [31]

Answer:

Water remaining in the pool after 141 days = 14,505 gallons

Step-by-step explanation:

Total number of gallons of water in the pool = 15,069

Rate of leakage of water = 4 gallons per day

Using unitary method

1 day leakage of water from the pool = 4 gallons

∴ In 141 days leakage of water from the pool will be = 141\times4=564 gallons

After leaking 564 gallons of water, total gallons of water that will remain in the pool will be = 15,069-564=14,505 gallons

8 0
3 years ago
Find f ( - 3 ) for the function below.<br><br> { ( - 3, 2 ), ( - 1, 0 ), ( 1, 1 ), ( 3, - 3 ) }
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

Question

Comment

The f(x) notation means that were ever you see n x on the right you put the value of x.  

The question is which point has x = - 3 and what is the associated y value?

You could do it this way, just so you understand it.

<h2>X                        Y</h2>

=========================

-3                                      2       <======

-1                                       0

1                                         1

3                                        -3

The answer must be the first one

6 0
2 years ago
Use the substitution method to solve the system of equations. y=4x 8x+y=18
RUDIKE [14]

Answer:

x=3/2, y=6

Step-by-step explanation:

plz mark brainliest!

4 0
3 years ago
Read 2 more answers
Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(2x) in the interval [0, 2π]. so far I found f'(x)=2cos(2x)+2 cos(2x)
rusak2 [61]
From there, you simply need algebra and a calculator that works in radians.

Take the inverse cos of both sides to get 2x = arccos(-1) 

Then divide both sides by 2 to get x = arccos(-1) / 2 

Put that into a calculator and you get π/2. But because your bounds are 0 to 2π, you have to add π your solution to get the solution on the other side of the unit circle, which would be (3π/2).

Now that you have the x value, put (π/2) and (3π/2) into f(x) to get the y coordinate. 

f(π/2) = 2(π/2) + sin(2(π/2) = π, which means this solution is just (π/2, π)
f(3π/2 = 2(3π/2) + sin(2(3π/2) = 3π, which means this solution is (3π/2, 3π)
6 0
4 years ago
Read 2 more answers
Simplifique essa expressão:<br>5x+6y+x+2:​
skelet666 [1.2K]

Answer:

6x+6y+2

Step-by-step explanation:

Trust me, I'm in Algebra 2 Honors. This is nothing for me.

4 0
3 years ago
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