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Angelina_Jolie [31]

3 years ago

13

Sam practiced his long jump in P. E. On his first attempt, he jumped 1 meter 47 centimeters. On his second attempt, he jumped 98

centimeters. How much farther did Sam jump on his first attempt than his second?.

1 answer:

nydimaria [60]3 years ago

8 0

Answer:

51

Step-by-step explanation:

98-47= 51

im bo.red so there ya go

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valentina_108 [34]

Answer:

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Step-by-step explanation:

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3 years ago

A circle is inscribed a in a square. The side length of the square is X in. If the area of the shaded region is 20 pie, what is

Alborosie

Answer:

8.555 in.

Step-by-step explanation:

So the area of the square is x^2.

This makes that the area of the circle is x^2 - 20 pie.

The radius of the circle is half of the diameter, so it is 0,5x.

The formula for the circle area is:

Area = pie * r^2.

x^2 - 20 pie = pie * (0,5x)^2

x^2 - 20 pie = pie * 0,25x^2

x^2 - pie * 0,25x^2 = 20 pie

x^2 * (1 - 0,25 pie) = 20 pie

x^2 = 20pie / (1 - 0,25 pie)

x = square root (20pie / (1 - 0,25 pie)) = 17.11

So the radius is 0,5 * 17.11 = 8.555 in.

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3 years ago

A hospital director is told that 54% of the emergency room visitors are insured. The director wants to test the claim that the p

Akimi4 [234]

Answer:

Z -0.879173965

Step-by-step explanation:

Z -0.879173965

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6 0

3 years ago

If you roll a die twice, what is the probability of getting a number less than 5 on both rolls?

xz_007 [3.2K]

<h3>Answer: 4/9</h3>

========================================================

Explanation:

The outcomes of the die are {1,2,3,4,5,6} which is the sample space.

The values less than 5 are {1,2,3,4}

There are 4 values we want out of 6 total, so 4/6 = 2/3 is the probability of rolling something less than 5 on a single die.

The probability of getting two such values in a row is (2/3)*(2/3) = 4/9

Each die roll is independent of any other.

8 0

2 years ago

A couple plans to have children until they get a girl, but they agree that they will not have more than three children even if a

ryzh [129]

Answer:

a. (0.5)^3*(0.5)^0*3C0 +0.5^2*0.5^1*3C1+0.5^1*0.5^2*3C2 +0.5^0*0.5^3*3C3

b. probability of having a girl 1/2 and that of boy is 1/2 but for the occurrence 0,1,2,3 it is 7/8 the number of children may be 2

c. 7/8, 7 out of 8 for the four possible occurrences.; 1

Step-by-step explanation:

4 0

3 years ago