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AnnZ [28]
2 years ago
6

Write a polynomial that represents the area of the shaded region

Mathematics
1 answer:
marusya05 [52]2 years ago
6 0
<h3>Answer: x^2-3x+36</h3>

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

Explanation:

The larger rectangle has area of (x+1)(x+1) = x^2+2x+1 through the use of the FOIL rule or distribution

If you use distribution, then it might help to let y = x+1 so we'd have y(x+1) lead to xy+1y which becomes x(x+1)+1(x+1). From there it might be easier to see how to get x^2+2x+1 after everything distributes again and simplifies.

The smaller rectangle has area 5x-35 which is found by distributing 5(x-7)

To get the shaded area, we subtract the two rectangle areas found above

shaded area = (larger area) - (smaller area)

shaded area = (x^2+2x+1) - (5x - 35)

shaded area = x^2+2x+1 - 5x + 35

shaded area = x^2-3x+36

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What two numbers add up to 18 and multiply to 80
mestny [16]

Answer:

8 and 10

Step-by-step explanation:

First, let's look at the factors of 80.

1 • 80 = 80

2 • 40 = 80

4 • 20 = 80

5 • 16 = 80

8 • 10 = 80

Look at each pair and evaluate their sum.

1 • 80 = 80

  • 1 + 80 = 81

2 • 40 = 80

  • 2 + 40 = 42

4 • 20 = 80

  • 4 + 20 = 24

5 • 16 = 80

  • 5 + 16 = 21

8 • 10 = 80

  • 8 + 10 = 18

Our last pairing multiplies to 80 and adds up to 18. Therefore, your answer is 8 & 10.

Hope this helps!

4 0
2 years ago
How to write the equation in standard form using 5x-y+6=0
irga5000 [103]
5x-y=6
Use the formula!
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3 years ago
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ZanzabumX [31]
A............................................
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Answer:

Triangle D is your answer.

8 0
3 years ago
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Which is the graph of f(x)=2(3)^x?
Aleksandr-060686 [28]

Answer:

First graph

Step-by-step explanation:

The y-intercept of f(x)=2(3)^x is found by letting x = 0:  f(0) = 2(3)^0 = 2.

Thus, we can immediately eliminate the 2nd and 4th answer graphs.

Next, determine whether (1, 6) from the first graph satisfies f(x)=2(3)^x:

2(3)^1 = 2(3) = 6.  Yes.  So the first graph is the correct one.

7 0
3 years ago
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