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bulgar [2K]
2 years ago
11

The weights of tennis balls are normally distributed, with the mean being 5.15 ounces and the standard deviation being 0.10. wha

t percentage of the balls weigh within one standard deviation of the mean? 50% 68% 95% 99.7%
Mathematics
1 answer:
zlopas [31]2 years ago
8 0
The empirical rule for normal distributions states that approximately 68% of the data points lie within the range plus and minus one standard deviation of the mean.
The answer is 68%.
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A truck is bought at the price of $60,000. The value decreases at the rate of .25 every year (t). The exponential expression 60,
ziro4ka [17]
It is B because you have to subtract and than you have to add
8 0
2 years ago
The velocity of an object in meters per second varies directly with time in seconds since the object was dropped, as represented
larisa86 [58]

Answer: 10.2

Step-by-step explanation:

3 0
2 years ago
10 POINTS AND WILL GIVE BRAINLIEST
madam [21]

The final value of the car will be given by:

final = origamt(1 - .20) to the 4th power. The car will retain therefore,only 80% of its original value from the preceding year for each of the 4 years starting with an original value of $35000.

The calculation is

final \:  value \\  = (35000) {(.8)}^{4}  \\  = 35000 \times .4096 \\  =

A measely $14,336!

7 0
2 years ago
On september 8, 2004, the genesis spacecraft crashed in the utah desert because its parachute did not open. the 210-kg capsule h
maw [93]
311km/h = 86.389 m/s 
<span>Initial KE </span>
<span>= 0.5 * 210 * 86.389^2 J </span>

<span>work done by force of ground </span>
<span>= F * 0.81 J </span>

<span>0.5 * 210 * 86.389^2 = 0.81 F </span>

<span>F = 967433.58 N </span>

<span>capsule's weight W= 210 * 9.81 = 2060.1 N </span>

<span>F = 469.6 times capsule weight ---answer</span>
6 0
2 years ago
Evaluate the expression. P(9, 3) · P(5, 4)
boyakko [2]

Answer:

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

Step-by-step explanation:

For this problem we want to find the following expressionÑ

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

6 0
2 years ago
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