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bagirrra123 [75]
3 years ago
5

On Monday morning, a school cafeteria had 97.88 gallons of milk. At lunch, the students drank 8

Mathematics
1 answer:
AlekseyPX3 years ago
4 0

Answer:

89.88 gallons of milk

Step-by-step explanation:

97.88-8=89.88

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Step-by-step explanation:

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5 0
2 years ago
The solution to 4.2x = 19.32 is x = ___. 0.28 0.45 4.6 15.12
grigory [225]

Answer:

x=4.6

Step-by-step explanation:

4.2x=19.32

x=19.32:4.2

x=4.6

6 0
3 years ago
USA Today reported that approximately 25% of all state prison inmates released on parole become repeat offenders while on parole
GaryK [48]

Answer:

a) 0.789, this is the complement of the probability of no repeat offenders; b) 0.411; c) 0.033; d) μ = 1.429; e) σ = 9.58

Step-by-step explanation:

For part a,

The probability that no parolees are repeat offenders is 0.211.  This means the probability of at least one is a repeat offender is the complement of this event.  To find this probability, subtract from 1:

1-0.211 = 0.789.

For part b,

To find the probability that 2 or more are repeat offenders, add together the probability that 2, 3, 4 or 5 parolees are repeat offenders:

0.216+0.162+0.032+0.001 = 0.411.

For part c,

To find the probability that 4 or more are repeat offenders, add together the probabilities that 4 or 5 parolees are repeat offenders:

0.032+0.001 = 0.033.

For part d,

To find the mean, we multiply each number of parolees by their probability and add them together:

0(0.211)+1(0.378)+2(0.216)+3(0.162)+4(0.032)+5(0.001)

= 0 + 0.378 + 0.432 + 0.486 + 0.128 + 0.005 = 1.429

For part e,

To find the mean, we first subtract each number of parolees and the mean to find the amount of deviation.  We then square it and multiply it by its probability.  Then we add these values together and find the square root.

First the differences between each value and the mean:

0-1.429 = -1.429;

1-1.429 = -0.429;

2-1.429 = 0.571;

3-1.429 = 1.571;

4-1.429 = 2.571;

5-1.429 = 3.571

Next the differences squared:

(-1.429)^2 = 2.0420

(-0.429)^2 = 0.1840

(0.571)^2 = 0.3260

(1.571)^2 = 2.4680

(2.571)^2 = 6.6100

(3.571)^2 = 12.7520

Next the squares multiplied by the probabilities:

0(2.0420) = 0

1(0.1840) = 0.1840

2(0.3260) = 0.652

3(2.4680) = 7.404

4(6.6100) = 26.44

5(12.7520) = 63.76

Next the sum of these products:

0+0.1840+0.652+0.7404+26.44+63.76 = 91.7764

Lastly the square root:

√(91.7764) = 9.58

3 0
3 years ago
please help me, i have no clue what to do all it says is find the slopeof the line that passes through the given two points usin
erastova [34]

Answer:

Δy = 9

Δx = -6

Slope = -3/2

Step-by-step explanation:

The slope formula is the change in y (Δy) over change in x (Δx).

Δy = y_2-y_1

Δx = x_2-x_1

We are given the points of (5,-3) and (-1,6).

m=\frac{6-(-3)}{-1-5}=\frac{9}{-6}=\boxed{-\frac{3}{2}}

The slope is -3/2.

Hope this helps.

6 0
3 years ago
What is the square root of 22​
STALIN [3.7K]

Answer:

4.69

Step-by-step explanation:

7 0
3 years ago
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