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Lilit [14]
3 years ago
6

Help with geometry please! I don't know how to do this

Mathematics
1 answer:
sesenic [268]3 years ago
4 0
We know that
scale factor=2.5
volume larger warehouse=scale factor³*volume smaller warehouse
volume larger warehouse=2.5³*volume smaller warehouse
volume larger warehouse=[15.625]*volume smaller warehouse

that means 
the volume of the larger warehouse is 15.625 times the volume smaller warehouse

the energy and cost is proportional to the volume
so
the new cost is 15.625*$125-----> $1953.12------> $1953

the answer is
$1953
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There are 4 quarters, 5 nickels and 3 dimes in a jar. One coin is randomly drawn,
vagabundo [1.1K]

Answer:

\displaystyle\frac{5}{36}

Step-by-step explanation:

Probability is used to find how likely an outcome is to happen. Probability can be expressed as a fraction with the total outcomes as the denominator and the number of successful outcomes (what you want to happen) as the numerator.

Sample Size

The sample size is the number of possible outcomes. In this case, the sample size will be the total number of coins. To find the sample size we need to add together all of the coins.

  • 4 + 5 + 3 = 12

This means that the sample size is 12. For this type of probability, the sample size will serve as the denominator for each probability.

Replacement

In the question, it is stated that coins are replaced. This means that the sample size will not change at any point. So, the denominator will be the same for every probability.

Creating Probability Fractions

We are looking for the probability of getting a quarter and nickel, so we need to find the fractions that represent both situations.

First, let's find the quarter. As stated in the first paragraph, the number of successful outcomes is the numerator. There are 4 quarters, so 4 is the number of successful outcomes. Therefore, 4 will be the numerator. Then, 12 will be the denominator because 12 is the sample size.

  • \displaystyle\frac{4}{12}

Next, we need to find the probability of a nickel. Since there are 5 nickels, there are 5 successful outcomes. Then, the sample size is still 12 because there is replacement.

  • \displaystyle\frac{5}{12}

Complex Probability

Now we have the probability of both a quarter and nickel alone. However, this question asks about the probability of both, so this is an example of complex probability. To find complex probability, you have to multiply each probability together.

  • \displaystyle\frac{4}{12} *\frac{5}{12}=\frac{20}{144}

To reach the final answer we have to simplify the answer.

  • \displaystyle\frac{20}{144} =\frac{5}{36}

This means that the probability of pulling a quarter and then a nickel is 5/36.

3 0
2 years ago
Please help ! Will mark brainliest!
Brrunno [24]

Answer:

$8

Step-by-step explanation:

if he works overtime for ten hours and earned $120 he makes $12 overtime pay. If you divide that by time and a half it's 8

5 0
3 years ago
Kurt conducted a survey to find the favorite type of music of his classmates
klio [65]

Answer:

True

Step-by-step explanation:

9+5=14

And rock is at 7

7 0
2 years ago
Factorize the pynomial f(x)=x³-7x-6 completely​
Makovka662 [10]

Answer:

gzgkvxgujdruutdtuhfdykjzfuk

4 0
3 years ago
State the conclusion based on the results of the test. The standard deviationstandard deviation inin the pressure required to op
inysia [295]

Answer:

<u>B. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed. </u>

Step-by-step explanation:

We make this conclusion based on these reasons:

  1. We are told that the "null hypothesis was rejected" after the <em>"manager feels that the pressure variability has changed.,</em> meaning the <u>null hypothesis was the opposite of what occurred; that is to say, it is the alternate hypothesis that proved true instead.</u>
  2. <em>"changes in the manufacturing​ process"</em> form what can be called "sufficient evidence" that the mean of the pressure required to open the valve has changed, thereby going against the null hypothesis.

It is based on the above reasons that the null hypothesis was rejected.

4 0
3 years ago
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