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4 years ago

I need help...........Please, i will give brainliest for best answer, thank you so much!!

Mathematics

2 answers:

liubo4ka [24]4 years ago

6 0

Answer:

132.5 cm²

Step-by-step explanation:

The cuboid has 6 surfaces, actually 3 pairs of equal surfaces. You add the areas of each of them:

top/bottom: 2.3*7.5 = 17.25 cm²

front/back: 5*7.5 = 37.5

left/right: 2.3*5 = 11.5

add them: 17.25 + 37.5 + 11.5 = 66.25 cm²

Now double that value to get all sides: 2*66.25 = 132.5 cm²

Never forget the unit (cm²)!

Harlamova29_29 [7]4 years ago

3 0

Answer:

You have to calculate 3 pairs of surface areas:

2 x 7.5 x 5 = 75

2 x 2.3 x 7.5 = 34.5

2 x 2.3 x 5 = 23 and that totals

132.5

Step-by-step explanation:

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a store had 2 blue chairs for $22.78 or 6 red chairs $67.80 which color chair has a lower unit price?

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Step-by-step explanation:

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3 years ago

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4 years ago

What is the difference between 1-var stats and 2-var stats?

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3 years ago

When you send out a resume, the probability of being called for an interview is 0. 40. what is the probability that the first in

Kipish [7]

The probability that the first interview occurs on the fifth resume that you sent is 0.2592.

According to the given question.

The probability of being called for an interview, p = 0.40.

So, the probability of not being called for an interview, q = 1 - 0.40 = 0.60

As we know that binomial distribution summarizes the number of trials, or observations when each trial has the same probability of attaining one particular value. The binomial distribution determines the probability of observing a specified number of successful outcomes in a specified number of trials.

Therefore, the probability that the first interview occurs on the fifth resume that you send out

= $^{5} C_{1} (0.40)^{1} (0.60)^{4}$