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irga5000 [103]
3 years ago
8

Write and expression to find the perimeter of the rectangle. (5 points)

Mathematics
1 answer:
postnew [5]3 years ago
3 0

Answer:

im confused

Step-by-step explanation:

im confused whats your question tho

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Simplify the expression (3 - 4i)(1 + 5i) - (2 - i). Show your work please! I have the answer: 21 + `12i but I need to show my wo
masha68 [24]

Answer:

21+12i i hope this will help you

Step-by-step explanation:

(3-4i)(1+5i)-(2-i)

=[3(1+5i)-4i(1+5i)]-(2-i)

=[3+15i-4i-20i²]-(2-i)

=(3+11i-20i²)-(2-i)

opening brackeys

=3+11i-20i²-2+i

=3+11i+1i-20i²-2

as we know that i²=-1

=3-20(-1)-2+12i

=3+20-2+12i

=21+12i

8 0
3 years ago
I don’t understand how to find the dimension,<br> Need help :c
slava [35]

Width = W

Length = 2 times the width plus 3 feet = 2W + 3

Area of triangle A = L * W

A = W (2W + 3)

20 = 2W^2 + 3W

2W^2 + 3W - 20 = 0

(W + 4) (2W - 5) = 0

W + 4 = 0; W = - 4 (width cannot be negative, excluded)

2W - 5 = 0

2W = 5

W = 2.5

L = 2W + 3 = 2(2.5) + 3 = 8

Answer:

Width = 2.5 feet and Length = 8 feet

Hope it helps.

8 0
2 years ago
Am i missing any upgrades also what is half of 138
zhannawk [14.2K]

Answer:

Half of 138 is 69 o-o

4 0
3 years ago
Find the volume of the cylinder.
VARVARA [1.3K]

Answer:

The answer to the test is 1. B 2.C 3.B 4.A and this is one is C for the answer.

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2 years ago
8.5 is 50% of what number
zaharov [31]
The answer is going to be 17%. hope that helped
8 0
3 years ago
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