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zubka84 [21]
2 years ago
9

The weight of football players is normally distributed with a mean of 180 pounds and a standard deviation of 20 pounds. what is

the probability of a player weighing less than 215 pounds?
Mathematics
1 answer:
sertanlavr [38]2 years ago
8 0

Answer:

Given:

mu = 200 lb, the mean sigma = 25 the standard deviation

For the random variable x = 250 lb, the

z-score is z = (x - mu) / sigma = (250 - 200) / 25 = 2

From standard tables for the normal distribution, obtain

P(x < 250) = 0.977

Answer: 0.977

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Mama L [17]

Answer:

the correct answer is 126 sq. cm

Step-by-step explanation:

Area of square= side = 6cm

Area = s*s = 6*6 = 36sq. cm

Area of rectangle: length = 12cm and breadth = 6cm

Area of rectangle = length * breadth = 12 * 6 = 72sq. cm

Area of triangle: height = 6cm and base = 6cm

Area of triangle = 1/2 * base * height = 1/2 * 6 * 6 = 3* 6 = 18sq. cm

Total area of the given figure = Area of square + Area of rectangle + Area of triangle

= 36 + 72 + 18 = 126sq. cm

4 0
3 years ago
Prove: DC = DB
tiny-mole [99]

Answer:

Option (D)

Step-by-step explanation:

           Statements                                                Reasons

1. DG ⊥ AC                                                   1. Given

2. AG = GC                                                   2. Given

3. DG is the perpendicular bisector of AC 3. deduced from step 1 and 2

4. DA = DC                                                 4. Perpendicular bisector theorem

5. DH ⊥ AB                                                  5. Given

6. AH = HB                                                  6. Given

7. DH is the perpendicular of AB      7. Definition of perpendicular bisector

8. DA = DB                                                   8. Deduced from steps 6 and 7

9. DC = DB                                                   9. Transition property of equality

Therefore, Option (D) will be the answer.

7 0
3 years ago
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Stolb23 [73]
Do you need help with all of them or some of them

6 0
4 years ago
A gift shop uses two sizes of boxes for presents. These boxes have exactly the same shape. The smaller box is 24 cm long, and th
Vesnalui [34]

Answer:

1,092 cm²

Step-by-step explanation:

Smaller box:

Length = 24 cm

Wrapping paper = 936 cm²

Bigger box:

Length= 28 cm

Wrapping paper = x cm²

Box : wrapping paper = 24 cm : 936 cm²

Box : wrapping paper = 28 cm : x cm²

Equate both ratios to find x

24 : 936 = 28 : x

24/936 = 28/x

Cross product

24 * x = 936 * 28

24x = 26,208

x = 26,208 / 24

x = 1,092 cm²

Bigger box:

Length= 28 cm

Wrapping paper = 1,092 cm²

7 0
3 years ago
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lora16 [44]

Answer:

f= (not applicable)

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Step-by-step explanation:

3 0
3 years ago
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