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2 years ago

Find the volume and surface area of this shape.

Mathematics

2 answers:

Masja [62]2 years ago

7 0

The answer is actually 171.65

Allushta [10]2 years ago

4 0

Answer:

171.65

Step-by-step explanation:

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

Solving forA

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=5·10+5·10+5·10+1

2·﹣54+2·(5·5)2+2·(5·5)2﹣54+2·(5·5)2﹣54≈171.65064

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levacccp [35]

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3 years ago

8090 [49]

Answer:

James bought 11 good tickets and 5 bad tickets.

Step-by-step explanation:

Given that:

Cost of each good ticket = $8

Cost of each bad ticket = $5

Total amount spent = $113

Total tickets bought = 16

Let,

x be the number of good tickets bought

y be the number of bad tickets bought

x+y=16 Eqn 1

8x+5y=113 Eqn 2

Multiplying Eqn 1 by 5

5(x+y=16)

5x+5y=80 Eqn 3

Subtracting Eqn 3 from Eqn 2

(8x+5y)-(5x+5y)=113-80

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3x=33

Dividing both sides by 3

$\frac{3x}{3}=\frac{33}{3}\\x=11$

Putting x=11 in Eqn 1

11+y=16

y=16-11

y=5

Hence,

James bought 11 good tickets and 5 bad tickets.

3 0

2 years ago

Matthew wants his run today to take no more than 90 minutes. He already has run 30 minutes at a pace of 10 minutes per mile.

denis23 [38]

Answer: 10x-30=90 I think 10x=90-30, 10x=60, x=60/10, x=6

Step-by-step explanation:

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3 years ago

Evaluate the expression when y=6. Y^2-5y-8

Katena32 [7]

Answer:

-2

Step-by-step explanation:

6^2 = 36

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3 years ago

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Leokris [45]

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3 years ago