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tamaranim1 [39]
3 years ago
11

Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:

Mathematics
1 answer:
Ghella [55]3 years ago
6 0

Answer: A = (x + 20)(x + 10) − 12 is the correct answer

Step-by-step explanation:

We would take the length and width of the patio and subtract it by the area that does not need to be painted.

I got this right on the test!

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I NEED HELP PLEASE, THANKS! :) Heather invests $4,900 in an account with a 3.5% interest rate, making no other deposits or withd
Alex

Answer:    $5,828.28

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

Use the Compound Interest formula:     A=P(1+\frac{r}{n})^{nt}       where

  • A is the accrued amount (balance)
  • P is the principal (initial amount invested)
  • r is the interest rate (in decimal form)
  • n is the number of times compounded each year
  • t is the time of the investment (in years)

Given: P = 4,900

           r = 3.5% (0.035)

           n = 2

           t = 5

A=4,900\bigg(1+\dfrac{0.035}{2}\bigg)^{2(5)}\\\\\\.\qquad = 4900(1.0175)^{10}\\\\\\.\qquad = \large\boxed{5,828.28}\\

5 0
4 years ago
Which of the following is another name for a proof by contradiction?
andrew-mc [135]

Answer:

C. Indirect Proof

Step-by-step explanation:

There are two methods of indirect proof: proof of the contrapositive and proof by contradiction.

3 0
3 years ago
Talia uses 10 strawberries and 4 oranges to make 8 servings of fruit salad. How many oranges and strawberries does Taila needs t
yarga [219]
Since 12 is 8 x 1 1/2 she needs 1 1/2 time as much fruit.


1 1/2 x 10 = 15 strawberries  and 1 1/2 x 4 = 6 oranges.

You could also solve this using proportions:

\frac{10}{8} =  \frac{n}{12}

Cross multiply and get 8n= 120  divide by 8 and get 15 strawberries

Do the same for the oranges:

\frac{4}{8} =  \frac{n}{12}

You can see that 4/8 = 1/2 so n/12 has to be 6 to be 1/2 (or solve it using cross products like I did above).
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Answer:

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7 0
3 years ago
The ratio of the length to the width of a rectangle is 4 to 3. If the rectangles is 160 yards long, how wide is it?
stealth61 [152]
7? not sure lol sorry if it’s wrong
5 0
3 years ago
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