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madam [21]
3 years ago
13

Skydiver falls 144 feet in three seconds . how far does the skydiver fall per second

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0
48 feet per second because

144/3=48
Karo-lina-s [1.5K]3 years ago
3 0
You would divide 144/3

=48 feet per second

Welcome!
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65x10^5

Step-by-step explanation:

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6+n/60=15/90<br><br> How do I dolce this
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6+\frac{n}{60}=\frac{15}{90}\\\\6+\frac{n}{60}=\frac{1}{6}\ \ \ \ \ |multiply\ both\ sides\ by\ 60\\\\360+n=10\ \ \ \ \ \ \ |subtract\ 360\ from\ both\ sides\\\\\boxed{n=-350}
8 0
3 years ago
**Solve by Elimination<br> 3 + 2x - y = 0<br> -3-7y = 10x<br> 7) x =<br> 8) y =
timofeeve [1]
Answer:

Explanation:

3 + 2x - y = 0
Or 2x - y = -3 (1)

-3-7y = 10x
Or -10x - 7y = 3 (2)

2x - y = -3 (1)
-10x - 7y = 3 (2)
———————

Multiply 5 to (1)

5(2x - y = -3)
-10x - 7y = 3
———————
10x - 5y = -15
-10x - 7y = 3
———————
-12y = -12
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Plug y value in (1)

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Therefore, x = -1 and y = 1
7 0
2 years ago
let X represent the amount of time till the next student will arriv ein the library partking lot at the university. If we know t
AlekseyPX

Answer:

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

Mean of 4 minutes

This means that m = 4, \mu = \frac{1}{4} = 0.25

Find the probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot:

This is:

P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2)

In which

P(X \leq 132) = 1 - e^{-0.25*132} = 1

P(X \leq 2) = 1 - e^{-0.25*2} = 0.393469

P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2) = 1 - 0.393469 = 0.606531

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

4 0
2 years ago
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