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3 years ago

Identify the cross section shown. a. circle b. hexagon c. trapezoid d. triangle

Mathematics

1 answer:

zepelin [54]3 years ago

5 0

Answer:

Step-by-step explanation:

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SOMEONE PLEASE PLEASE HELP PLEASE HELP

mr Goodwill [35]

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ = $\frac{1}{a^{-m} }$ , then

2 ÷ $10^{4}$ = 2 ÷ $\frac{1}{10^{-4} }$

To divide leave first, change ÷ to × , turn second upside down

= 2 × $10^{-4}$

6 0

3 years ago

A rectangular prism with a volume of 2 cubic units is filled with cubes with side lengths of 1/4 unit. How many 1/4 unit cubes

34kurt

Answer:

128

Step-by-step explanation:

Method A.

The volume of the prism is 2 cubic units.

Each cube has side length of 1/4 unit.

The volume of each cube is (1/4)^3 cubic unit.

The volume of each cube is 1/64 cubic unit.

To find the number of cubes that fit in the prism, we divide the volume of the prism by the volume of one cube.

(2 cubic units)/(1/64 cubic units) =

= 2/(1/64)

= 2 * 64

= 128

Method B.

Imagine that the prism has side lengths 1 unit, 1 unit, and 2 units (which does result in a 2 cubic unit volume.) Since each cube has side length 1/4 unit, then you can fit 4 cubes by 4 cubes by 8 cubes in the prism. Then the number of cubes is: 4 * 4 * 8 = 128

4 0

3 years ago

Read 2 more answers

At a fabric store, the probability that a customer buys thread is 0.15. The probability that a customer buys a needle given that

Sveta_85 [38]

Answer:

The correct statement is:

C. Buying a needle and buying a thread are dependent events.

Explanation:

The first statement is incorrect because the given events are dependent on each other because the probability that a customer buys a needle given that the customer buys thread is 0.25.

The second statement is incorrect because we cannot say all those who buy a thread also buy a needle.

The fourth statement is incorrect because the probability that a customer buys a needle and thread is $0.25 \times 0.15=0.0375$