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3 years ago

HELP QUICKLY PLEASE...

Mathematics

1 answer:

Luba_88 [7]3 years ago

6 0

For the first one, I believe I is 1200

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I need answer for this question

otez555 [7]

Take the cube root of 216. You will get 6

5 0

3 years ago

Read 2 more answers

How many cubes with side lengths of 1/2 cm does it take to fill up the prism

ELEN [110]

24 cubes can filled up the prism

Solution:

The image of the question is attached below.

Given data:

Length of the prism = 2 cm

Breadth of the prism = 1 cm

Height of the prism = $$\frac{3}{2}$ cm

Volume of the prism = length × breadth × height

$$=2\times 1\times \frac{3}{2}$

$=3$ cubic cm

Volume of the prism = 3 cubic cm

Side length of the cube = $$\frac{1}{2}$ cm

Volume of the cube = side × side × side

$$=\left(\frac{1}{2}\right)^{3}$

$$=\frac{1}{8}$ cubic cm

Volume of the cube = $\frac{1}{8}$ cm

$$\text{Number of cubes} =\frac{\text{Volume of the prism}}{\text{Volume of the cube}}$

$$=\frac{3}{\frac{1}{8} }$

$=3\times8$

$=24$

Number of cubes = 24

Hence 24 cubes can filled up the prism.

4 0

3 years ago

The purchasing power P of a fixed income of $20000 per year (such as a pension) after t years of 7% inflation can be modeled by

Oxana [17]

After 5 years: 107,000

After 20 years: 428,000

7 0

2 years ago

Solve for a side in right triangles. Make sure to round your answer to the nearest hundredth

DochEvi [55]

Answer:

tan(20) = 4 / x

tan(20)x = 4

x = 4 / tan(20)

<u>x = 10.99 units</u>

Step-by-step explanation:

5 0

2 years ago

The Office of Student Services at UNC would like to estimate the proportion of UNC's 34,000 students who are foreign students. I

Pachacha [2.7K]

Answer:

Mean is 3.05

Standard deviation is 1.69.

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they are foreign, or they are not. This means that we can solve this problem using concepts of the binomial probability distribution.

Binomial probability distribution

The probability of x sucesses on n repeated trials, with p probability.

In this problem, we have a sample of 50 students, so $n = 50$ . The proportion of all UNC students that are foreign students is 0.061, so $p = 0.061$ .

The mean is given by the following formula:

$E(X) = np = 50*0.061 = 3.05$

The standard deviation is given by the following formula:

$\sigma = \sqrt{n*p*(1-p)} = \sqrt{50*0.061*(1-0.061))} = 1.69$

6 0

3 years ago