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2 years ago

Do 2 planes intersect at a point all the time?

1 answer:

5 0

No, they can just not intersect, like if you had two pieces of paper, think of them as planes, one can be above the other, aka parallel, so they never intersect.
planes can also intersect as lines.
by the way, i assume the question is about how 2 planes can intersect.

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larisa [96]

Explanation:

Volume of rectangular prism: Length * Width * Height

Solve:

1)

Volume: 9 * 9 * 9 = 9³ = 729 cm³

2)

Volume: 7 * 3 * 2 = 42 m³

3)

Volume: 7 * 7 * 7 = 7³ = 343 cm³

5 0

2 years ago

Which answer describes the type of sequence? 1, 3, 5, 7, ......arithmetic, geometric, or neither arithmetic nor geometric?

Gnoma [55]

Arithmetic; the difference is constant equal 2

6 0

3 years ago

Read 2 more answers

The polyhedron has 120 edges. How many vertices does it have?

Charra [1.4K]

(Correct me if I’m wrong in comments)

Answer: 80

Reasoning: A polyhedron can have 30 edges. If this polyhedron has 120 it has 4 times the “other” one. If it has 30 edges it will have 20 vertices, meaning 20*4=80 vertices

6 0

2 years ago

A computer company employs 100 software engineers and 100 hardware engineers. The personnel manager randomly selects 20 of the s

Rashid [163]

Answer:

Yes, it is a Simple Random Sampling.

Step-by-step explanation:

Since the computer company has two equal groups software engineers and hardware engineers and equal units are randomly selected from each group. So, it is Simple Random Sampling.

Further, Simple Random Sampling is the sampling when samples are chosen randomly, where each unit has an equal chance of being selected in a sample.

3 0

3 years ago

Louis wants to carpet the rectangular floor of his basement.the basement has an area of 864 square feet.the width of the basemen

Mama L [17]

Answer: 36 or sqrt(1296)

Step-by-step explanation:

l * w = a(864)

We can substitute w in this equation for 2/3 * l.

l * (2/3 * l) = 864 or 2/3 * l ^2

Multiply by the denominator 3...

and then divide by what's left of the fraction 2

(864)*3/2 = 1296

1296 = l^2

This can also be seen as:

sqrt(1296) = l

36 = l

3 0

3 years ago