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3 years ago

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1 answer:

horsena [70]3 years ago

4 0

The first one is correct

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Simplify <br><br> -√125^3<br><br> Please help

klio [65]

-(5v5)^3 (use exponent rules)
-125x5v5 (calculate the product)
=-625v5 (pretend the v is a square root sign)

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3 years ago

Solve for x. You must show all of your work to receive credit.

Nastasia [14]

Answer:

x = 6

Step-by-step explanation:

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2 years ago

A cereal company is putting 1 11 of 3 33 prizes in each box of cereal. The prizes are evenly distributed so the probability of w

Black_prince [1.1K]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

A cereal company is putting 1 of 3 prizes in each box of cereal. The prizes are evenly distributed so the probability of winning any given prize is always 1/3. Adam wonders how many boxes he should expect to buy to get all 3 prizes. He carried out 32 trials of a simulation and his results are shown below.

3 12

4 4

5 5

6 5

7 0

8 0

9 2

10 2

11 0

12 2

Use his results to estimate the probability that it takes 9 or more boxes to get all 3 prizes. Give your answer as either a fraction or a decimal. P ( 9 or more boxes ) =

Answer:

P(x ≥ 9) = 18.75%

Step-by-step explanation:

A cereal company is putting 1 of 3 prizes in each box of cereal.

Adam is trying to find out how many boxes he should buy to get all 3 prizes.

He carried out 32 trials and got the following results.

We want to estimate the probability that it takes 9 or more boxes to get all 3 prizes.

No. of Boxes | frequency

3 | 12

4 | 4

5 | 5

6 | 5

7 | 0

8 | 0

9 | 2

10 | 2

11 | 0

12 | 2

9 or more boxes means equal to 9 boxes or greater than 9 boxes.

P(x ≥ 9) = No. of boxes equal or greater than 9/total no. of boxes

The total no. of boxes is 32

From the above data, count the number of boxes equal to or greater than 9. (6 times)

P(x ≥ 9) = 6/32

P(x ≥ 9) = 3/16

P(x ≥ 9) = 0.1875

P(x ≥ 9) = 18.75%

Therefore, there is 18.75% probability that it takes 9 or more boxes to get all 3 prizes.

3 0

3 years ago

Read 2 more answers

5. Which of the following inequalities could be modeled by the graph below?

user100 [1]

Answer:

The answer is C, x/-2 > -1

Step-by-step explanation:

The inequality that the graph models is x < 2.

If you want the right side to be -1, then you would have to multiply both sides with -2. When multiplying with a negative, the sign of values on both sides are switched, resulting in x/-2 > -1.

6 0

3 years ago

I have no clue how to do this need help

ch4aika [34]

Answer:

P(x, y) = (√3/2, -1/2)

Step-by-step explanation:

There are a few special angles whose trig functions are worthwhile to remember. The top half of the table in the second attachment shows these.

The first attachment shows a unit circle and coordinates of the points at these special angles. It is worthwhile to remember there are 2π radians in a circle, so -π/6 radians (your angle) corresponds to a positive angle of 11π/6 radians.

__

The coordinates of P are ...

P(x, y) = (√3/2, -1/2)

_____

<em>Additional comment</em>

The coordinates of any point at angle α on a unit circle are ...

(x, y) = (cos(α), sin(α))

4 0

3 years ago