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Y_Kistochka [10]
2 years ago
8

A triangular pyramid has a surface area of 174 square feet. It is made up of equilateral triangles with side lengths of 10 feet.

What is the slant height?
Mathematics
1 answer:
emmainna [20.7K]2 years ago
6 0

Answer:

Slant height = 7.07 ft to nearest hundredth.

Step-by-step explanation:

The slant height = height of one of the triangular sides

Using Pythagoras:

S^2 =  1/2 * 10^2 + 10^2 = 50 ft.

S = √50 = 7.071

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3 years ago
At a production process, the produced items are tested for defects. A defective unit is classified as such with probability 0.9,
Snezhnost [94]

Answer:

We use Baye's theorem:  P(A)P(B|A) = P(B)P(A|B)

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we have to find P(B) = P(A).P(B|A) + P(¬A)P(B|¬A). .......eq(2)

Since  P(A) = 0.1 and P(B|A)=0.9,

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and

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3 years ago
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Answer:

0.875

Step-by-step explanation:

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3 years ago
MULTIPLE CHOICE (see image) AND WRITE A BRIEF EXPLANATION
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Answer:

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Step-by-step explanation:

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Answer:

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