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kolbaska11 [484]
2 years ago
13

There are 40 batteries in 10 packs.

Mathematics
1 answer:
DaniilM [7]2 years ago
7 0

:-):-):-):-):-)

Step-by-step explanation:

1) 40÷10

2) 40÷2

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In the 2000-2001 season, Shaquille O'Neal made 813 field goals out of 1422 attempts. What was his ratio of successful field goal
iragen [17]
Answer=1.335 or 1 67/200

813 field goals
1422 attempts

1422-813=609 fails

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1.335= 1 335/1000= 1 67/200
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3 years ago
Solve 12^2+5x-4 =12^2x+6
torisob [31]

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3 years ago
(a) A lamp has two bulbs, each of a type with average lifetime 1400 hours. Assuming that we can model the probability of failure
Temka [501]

Answer:

For first lamp ; The resultant probability is 0.703

For both lamps; The resultant probability is 0.3614

Step-by-step explanation:

Let X be the lifetime hours of two bulbs

X∼exp(1/1400)

f(x)=1/1400e−1/1400x

P(X<x)=1−e−1/1400x

X∼exp⁡(1/1400)

f(x)=1/1400 e−1/1400x

P(X<x)=1−e−1/1400x

The probability that both of the lamp bulbs fail within 1700 hours is calculated below,

P(X≤1700)=1−e−1/1400×1700

=1−e−1.21=0.703

The resultant probability is 0.703

Let Y be a lifetime of another lamp two bulbs

Then the Z = X + Y will follow gamma distribution that is,

X+Y=Z∼gamma(2,1/1400)

2λZ∼

X+Y=Z∼gamma(2,1/1400)

2λZ∼χ2α2

The probability that both of the lamp bulbs fail within a total of 1700 hours is calculated below,

P(Z≤1700)=P(1/700Z≤1.67)=

P(χ24≤1.67)=0.3614

The resultant probability is 0.3614

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Answer:

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Step-by-step explanation:

.????

4 0
3 years ago
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