How to find the volume of the cube?

Mathematics

2 answers:

nalin [4]2 years ago

8 0

Answer:

Volume = $length * width * height.$

Step-by-step explanation:

$V=a^{3}$ that is the formula

So the volume of this cube is 125 cm

Ierofanga [76]2 years ago

7 0

Answer:

its 125

Step-by-step explanation:

5x5x5

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What is the percent increase if your salary went from $85 to $100 per week? Round your answer to the nearest percent, if necessa

slavikrds [6]

% increase = 100 - 85
--------- * 100
85

= 17.65
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3 0

3 years ago

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According to the National Bridge Inspection Standard (NBIS), public bridges over 20 feet in length must be inspected and rated e

slamgirl [31]

Answer:

1.80% probability that in a random sample of 12 major Denver bridges, at least 4 will have an inspection rating of 4 or below in 2020.

Step-by-step explanation:

For each bridge, there are only two possible outcomes. Either it has rating of 4 or below, or it does not. The probability of a bridge being rated 4 or below is independent from other bridges. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

For the year 2020, the engineers forecast that 9% of all major Denver bridges will have ratings of 4 or below.

This means that $p = 0.09$

Use the forecast to find the probability that in a random sample of 12 major Denver bridges, at least 4 will have an inspection rating of 4 or below in 2020.

Either less than 4 have a rating of 4 or below, or at least 4 does. The sum of the probabilities of these events is 1.

$P(X < 4) + P(X \geq 4) = 1$