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Harman [31]
2 years ago
11

*find the area thats all *

Mathematics
1 answer:
worty [1.4K]2 years ago
7 0

Answer:

The area is 155 square feet

Step-by-step explanation:

\frac{(13+18)} {2} × 10

\frac{31}{2} × 10

15.5×10=155

Hope this helps! :)

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Multiply (9x+2y)(9x-2y)
Gala2k [10]

Hi there!

Here are all the steps into multiplying these 2 parentheses :

(9x + 2y) × (9x - 2y)

9x × 9x = <u>81x²</u>

9x × -2y = <u>-18xy</u>

2y × 9x = <u>18xy</u>

2y × -2y = <u>-4y²</u>


81x² - 18xy + 18xy - 4y²


-18xy + 18xy = 0


Your answer is: 81x² - 4y²


There you go! I really hope this helped, if there's anything just let me know! :)

6 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP IMDOING FINALS
Minchanka [31]
The answer is A: 4/3=DE/9

4 is corresponding to line DE
3 is corresponding to 9

5 0
3 years ago
-3^2 - 1^2 -(-2)^3+(-1)^2-(-1-5)^3
Ilia_Sergeevich [38]

Answer: 215

Step-by-step explanation:

4 0
3 years ago
Pleaseee tell me if im right!! I already solved and my answer is 84 square units, but im not sure.. pleaseee help me
yawa3891 [41]

Answer:

84

Step-by-step explanation:

12*5=60

4*6=24

60+24=84

8 0
3 years ago
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A coin bank has 250 coins dimes and quarters worth 39.25 how many of each type of coins are there?
Maurinko [17]
Set up a system of equations.

0.10d + 0.25q = 39.25
d + q = 250

Where 'd' represents the number of dimes, and 'q' represents the number of quarters.

d + q = 250

Subtract 'q' to both sides:

d = -q + 250

Plug in '-q + 250' for 'd' in the 1st equation:

0.10(-q + 250) + 0.25q = 39.25

Distribute 0.10:

-0.10q + 25 + 0.25q = 39.25

Combine like terms:

0.15q + 25 = 39.25

Subtract 25 to both sides:

0.15q = 14.25

Divide 0.15 to both sides:

q = 95

Now plug this into any of the two equations to find 'd':

d + q = 250

d + 95 = 250

Subtract 95 to both sides:

d = 155

So there are 95 quarters and 155 dimes.
8 0
3 years ago
Read 2 more answers
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