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2 years ago

HELP! PROBABILITY!

Mathematics

2 answers:

andrew-mc [135]2 years ago

5 0

Answer:

Estimated probability $P=\frac{5}{12}$

Step-by-step explanation:

In this question Emil estimates the probability of 2 or more heads coming up in 3 coin flips.

He has a computer which randomly selects 0 or 1 three times, with 0 representing heads and 1 as tails.

From the results shown we will select the preferred events of getting 2 or more heads, means results having 2 zeros or more than 2 zeros.

Number of preferred events are = 5

And total events are = 12

Therefore estimated probability = $P=\frac{\text{Preferred events}}{\text{Total events}}$

Probability $P=\frac{5}{12}$

Therefore answer is $P=\frac{5}{12}$

saul85 [17]2 years ago

4 0

You are correct its 5/12

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Brian's gross earnings for the week of July 8, 2019, are $1227.38. His deductions comprise 23% of his total compensation.

artcher [175]

Question is Incomplete;Complete question is given below;

Brian's gross earnings for the week of July 8, 2019, are $1227.38. His deductions comprise 23% of his total compensation.

What is his net pay?

Enter the answer to the nearest hundredth, such as $1234.56.

Answer:

Brian's Net pay is $945.08.

Step-by-step explanation:

Given:

Gross earnings for the week = $1227.38

Deductions = 23%

We need to find the net pay.

Solution:

First we will find the amount deducted.

amount deducted is equal to Deductions on Gross pay.

framing in equation form we get;

amount deducted = $\frac{23}{100}\times 1227.38 = \$282.2974$

Now we can say that;

Net pay is equal to Gross earnings minus amount deducted in tax.

framing in equation form we get;

Net pay = $1227.38-282.2974 = \$945.0826$

Rounding to nearest hundred we get;

Net pay = $945.08

Hence Brian's Net pay is $945.08.

6 0

2 years ago

If the circumference is 3/2 pi what is the area

11111nata11111 [884]

Here is your answer

$\frac{9}{16} \pi \: {units}^{2}$

REASON:

Circumference(C)= 2πr

, where r is radius

Given

C= (3/2) π

So,

$2\pi \: r = \frac{3}{2}\pi$

$r = \frac{\frac{3}{2}\pi}{2\pi}$

$r = \frac{3}{4}$

Now,

$area = \pi {r}^{2}$

$= \pi \times { (\frac{3}{4}) }^{2}$

$= \frac{9}{16}\pi \: {unit}^{2}$

HOPE IT IS USEFUL

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3 years ago

Use the law of cosines to find the length of side C.

sergij07 [2.7K]

Answer:

$\text{D. 36.64}$

Step-by-step explanation:

The Law of Sines is given by $\frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}$ and works for any triangle.

Therefore, we have the proportion:

$\frac{c}{\sin 41.5^{\circ}}=\frac{37}{\sin 42^{\circ}},\\\\c=\frac{37\sin 41.5^{\circ}}{\sin 42^{\circ}}=36.6399945706\approx \boxed{36.64}$

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2 years ago

7x-9x what is the answer

Oksanka [162]

Answer:

-2x

Step-by-step explanation:

The expression itself is -2x. We subtract the coefficients 7 and 9 to get -2.

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2 years ago

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prisoha [69]

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3 years ago