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Maksim231197 [3]
3 years ago
9

The perimeter ratio of two similar triangular prisms are 13:7. If the surface area of the smaller prism is 52km2 , then calculat

e the larger surface area.
Mathematics
2 answers:
ELEN [110]3 years ago
6 0

Answer:

96.5714285714 km^2

Step-by-step explanation:

You have to multiply 52 by 13/7

Elenna [48]3 years ago
6 0

Answer:

96.5714285714 km^2

hope it helps

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Firlakuza [10]

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B) Hannah walked 3.5 x 3 = 10.5 miles.

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C) Hannah walked a faster rate, because she walked further in the same amount of time.

5 0
2 years ago
Shea wrote the expression 5(y+2)+4 to show the amount of money five friends paid for snacks at a baseball game.Which espression
zhenek [66]

Answer: Algebraic linear expression

Step-by-step explanation:

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6 0
3 years ago
7cm<br>10cm<br>4cm<br>The area of the compound shape is 106cm.<br>work out the size of x.​
uranmaximum [27]

Answer: 9cm

Step-by-step explanation:

7x10=70cmx^{2}

4(x)=4x

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2.)4x=36 (divide 4 on both sides)

3.)x=9

5 0
3 years ago
Read 2 more answers
The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher
ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340

Thus, the correct answer is

Option D) 340

7 0
3 years ago
Ann took a taxi home from the airport. The taxi fare was $2.10 per mile, and she gave the driver a tip of $5. Ann paid a total o
Licemer1 [7]
<span>d = miles from the airport to home. 
2.1*d+5=49.10 solve for d
d=</span>49.10-5/2.1 = 21 miles
7 0
3 years ago
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