Find a formula for the described function. A rectangle has perimeter 10 m. Express the area A of the rectangle as a function of the length, L, of one of its sides.

Answers

Answer 1
Answer:

Answer:

The area of the rectangle is A=5L-L^2.

Step-by-step explanation:

The perimeter of a rectangle is

P=2(L+W)

where, L is length and W is width.

It is given that perimeter of a rectangle is 10m.

10=2(L+W)

Divide both sides by 2.

5=L+W

Subtract L from both sides.

5-L=W

Area of a rectangle is

A=L* W

Substitute W=(5-L) in the above formula.

A=L* (5-L)

A=5L-L^2

Therefore, the area of the rectangle is A=5L-L^2.


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PLEASE HELP ASAP WILL MARK BRAINLIEST Tilda buys a shirt for d dollars. She uses a $50 gift card and receives $22.50 in change Write an equation for this.
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What is (7*7) + 39 - 5 * 8

6th grade math, help me please

Answers

Answer:

B

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

(42)/(100)  * 350 = 147

Four family members compared their ages. Terell is 3 years younger than Danny. Danny is 1 year younger than Pablo. Pablo's age is 1/3 Shaniqua's age. How old is Terell if Shaniqua is 36 years old?The picture below is wrong so don't say this you little l=UCK.

Answers

Answer:

8 years

Step-by-step explanation:

Shaniquas age is given as 36. This age is going to help us to find the rest.

Pablo is said to 1/3 of Shaniquas age

= 1/3 of 36 = 36/3 = 12

Pablo is 12

Danny is younger than pablo by 1

12 - 1 = 11

Danny is 11

Terrell is younger than danny by 3

11-3 = 8

Terrell is 8 years old

Answer:

I think ur profile pic is cute

Step-by-step explanation:

Help me, please !! For a reason, Tony took 1/3 his money for book and then he took 1/5 again for beer. And now tony have 28$, how many money he had before? Please anwer with the pattern, thank you

Answers

(1-1/3)x*(1-1/5)=28 8/15x=28 x=52.5. Therefore, he had 52.5$before

Which of the following expression are equivalent to 2x+4 select three answers?A.6x
B.1/3(18x)
c.1/3(6x+12)
d.2/3(3x+6)
e.2(x+4)
f.4(1/2x+1)

Answers

Answer:

A.6x

Step-by-step explanation:

hope i helped!! ...............

2.) What amount presently must be invested earning 5.25% compounded continuouslyso that it will grow up to be worth $25,000 12 years from now?

Answers

The amount A resulting from a principal amount P being invested at rate r compounded continuously for time t is given by

... A = P·e^(rt)


FIll in your given values and solve for P.

... 25000 = P·e^(0.0525·12) = P·e^0.63

... P = 25000/e^0.63 ≈ 13314.80 . . . . . divide by the coefficient of P


The amount that must be invested is $13,314.80.

An initial investment (P) compounded continuously with a rate of interest (r) in time (t) will grow to amount (Q) is given by:

Q = P * e^(rt)

Q=25000, r=0.0525, t=12

25000 = P * e^(0.0525*12)

1.8776P = 25000

P = 13314.8

Suppose 8 quarts of a solution that is 45% anti-freeze is mixed with 12 quarts of a solution that is 33% anti-freeze. How many quarts of antifreeze are in the resulting measures? What percentage of the resulting mixture is anti-freeze?

Answers

Answer:

7.56 quarts of antifreeze in the resulting mixture, and 37.8% of the resulting mixture is antifreeze.

Step-by-step explanation:

8 * .45= 3.6 quarts antifreeze

12 * .33= 3.96 quarts antifreeze

3.6 + 3.96= 7.56 quarts of antifreeze in the resulting mixture

7.56 quarts/ 20 quarts (12 + 8) * 100= 37.8%

Final answer:

In the combined solution, there are 7.56 quarts of anti-freeze, which equals 37.8% of the total solution.

Explanation:

To solve this problem, we first need to calculate how many quarts of anti-freeze are in each solution, then add them together.

First, we have 8 quarts of a solution that is 45% anti-freeze. To find how many quarts of the solution is anti-freeze, we multiply the total amount by the percentage: 8 quarts * 0.45 = 3.6 quarts anti-freeze.

Next, we have 12 quarts of a solution that is 33% anti-freeze. Doing the same calculation as before, 12 quarts * 0.33 = 3.96 quarts anti-freeze.

Now, to find the total quarts of anti-freeze in the combined solution, we simply add the two amounts together: 3.6 quarts + 3.96 quarts = 7.56 quarts.

The total amount of solution is 8 quarts (from the first solution) + 12 quarts (from the second) = 20 quarts.

To find the percent of anti-freeze in the final solution, we divide the total amount of anti-freeze by the total amount of solution: (7.56 quarts / 20 quarts) * 100 = 37.8%. Therefore, the resulting mixture is 37.8% anti-freeze.

Learn more about Percent Composition here:

brainly.com/question/32450781

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