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Paraphin [41]
3 years ago
10

Please help me find the total surface area.

Mathematics
1 answer:
Brut [27]3 years ago
7 0

Answer:

261

Step-by-step explanation:

first find the area of the triangle

A=9x10/2

A=90/2

A=45

then add it 4 times

then find the area of the square

A=9x9

A=81

and add them all

45+45+45+45+81=261

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C = 5(f-32) / 9 in form ac + b / c
Lera25 [3.4K]

Answer: I don't know if you wanted me to solve for C or F. But, I Solved for both.

Step-by-step explanation:

<u>Solved for F </u>

  • f=(9C)/(5)+32

<u>Solved for C</u>

  • C=(5(f-32))/(9)
3 0
3 years ago
Solve the equation sin2∅=2sin∅, domain 0°≤B≤360°
Ann [662]

Answer:

∅ = 90°

Step-by-step explanation:

Given;

sin2∅=2sin∅

sin2∅ = 2sin∅Cos∅

but, Sin²∅ + Cos²∅ = 1

       Cos²∅ = 1 - Sin²∅

       Cos ∅ = √(1 - Sin²∅)

sin2∅=2sin∅ ↓

2sin∅Cos∅ = 2sin∅

2sin∅(√(1 - Sin²∅)) = 2sin∅

Let Sin∅ = P

2P( √(1 - P²)) = 2P

Divide both sides by 2P

√(1 - P²) = 1

Square both sides

1 - P² = 1

P² = 1 - 1

P² = 0

P = 0

Recall, Sin∅ = P

Sin∅ = 0

∅ = Sin ⁻¹(0)

∅ = 90°

5 0
3 years ago
Solve the second equation.<br>2x - y = 8<br>First, solve for (-y).<br>--y =<br>​
kicyunya [14]

Answer:

-y=-2x+8\\y=2x-8

Step-by-step explanation:

To solve, first subtract 2x from both sides.

2x-y=8\\-y=-2x+8

You appear to want the solution for -y, so I've included it. Given that you also want the solution for y, divide both sides by -1.

-y=-2x+8\\y=2x-8

5 0
3 years ago
7x7+1+ 16/8- (6-7) and please show how you got your answer
zysi [14]

Answer:

53

Step-by-step explanation:

PEMDAS:

7x7+1+ 16/8- (6-7)

7*7+1+16/8-(-1)

49+1+2-(-1)

52-(-1)

53.

3 0
3 years ago
Read 2 more answers
Please hurry. frl!!!!
storchak [24]

Answer:

1,4,6,8,10=domain

2,4,6,9=range

Step-by-step explanation:

4 0
3 years ago
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