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3 years ago

PLZ HELP!!!! Predict the number of times you will win a prize in 500 spins, based on the theoretical probability.

Mathematics

2 answers:

marishachu [46]3 years ago

8 0

Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

Total number of sectors in a wheel = 10

Number of sectors for win a prize = 3

So, Probability of getting for win a prize is given by

$\dfrac{3}{10}$

Number of times it spins = 500

so, the number of times that you will win a prize is given by

$\dfrac{3}{10}\times 500\\\\=150$

Hence, Second option is correct.

Over [174]3 years ago

3 0

I think the answer is B. 150 i may be wrong though

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Law Incorporation [45]

Answer:

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Step-by-step explanation:

A=2i+3j+4k

B=i-2j+3k

Sum of the vectors:

A + B = 2i+3j+4k + i-2j+3k = 3i + j + 7k

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Direction of the sum of the vectors:

$\widehat{A + B} =\frac{\overrightarrow{A + B}}{Magnitude\: of \:\overrightarrow{A + B}} \\\\\widehat{A + B} =\frac{3i + j + 7k}{\sqrt {59}} \\\\\widehat{A + B} =\frac{3}{\sqrt {59}} i +\frac{1}{\sqrt {59}} j+\frac{7}{\sqrt {59}} k\\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}} \\\\$

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2 years ago

Strawberries cost $2 per pound. Kate buys 5 pounds and gets 20% discount on the total cost. How much does Kate pay for the straw

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The total cost without the discount is given by:

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Then, to find the discounted amount, we make the following rule of three:

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From here, we clear the value of x.

We have then:

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Then, the cost of the Strawberries with the discount is:

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Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

Please consider the complete question.

A model ship has a mast that is 7 inches tall. A right triangular sail goes from the top of the mast to 1 inch from the bottom of the mast. The length of the base of the sail is 4 inches. The height of the sail is along the mast. Find the area of the sail.

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