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omeli [17]
3 years ago
8

The lifetime of a certain brand of battery is normally distributed with a mean value of 8 hr and a standard deviation of 0.8 hr

when it is used in a particular cassette player.Suppose that two new batteries are independently selected and put into the player. The player ceases to function as soon as one of the batteries fails.
(a) What is the probability that the player functions for at least 6 hr?
(b) What is the probability that the cassette player works for at most 9 hr?
Mathematics
1 answer:
AveGali [126]3 years ago
6 0

Answer:

Step-by-step explanation: o847434y3u3u44y4u5u5u5uu6

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Please help!posted picture of question
motikmotik
Answer:
5x⁴ + 5x³

Explanation:
We are given that:
f (x) = 5x³
g (x) = x + 1

Now, (f · g)(x) means that we will simply multiply the two functions as follows:
(f · g)(x) = f (x) · g (x)
(f · g)(x) = 5x³ (x + 1)
(f · g)(x) = 5x⁴ + 5x³

Hope this helps :)
3 0
3 years ago
{(1, 1), (2, 2), (3, 3), (4,4)} domain and range
jarptica [38.1K]

Answer:

Domain: 1, 2, 3, 4

Range: 1, 2, 3, 4

Step-by-step explanation:

The domain is the first coordinate in an ordered pair which is x. In this set of ordered pairs, the first coordinates ( x ) are 1, 2, 3, 4. The range is the second coordinate in an ordered pair which is y. The range of this set of ordered pairs is 1, 2, 3, 4.

Hope This Helps :)

6 0
3 years ago
Read 2 more answers
Pls help I’m failing
lara [203]

Answer:

a.

the area of each parallelogram

<em>a. 66</em>

<em>b. 49</em>

<em>c. 25</em>

<em>d. 32</em>

<em>e. 18</em>

Step-by-step explanation:

a parallelogram is similar to a rectangle when you are finding the ares, you use the base and the height to find the area. If it helps, like the text suggested, just change them to look like a rectangle and then find the area.

8 0
3 years ago
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What is the simplified fraction for 6%?
mr Goodwill [35]

Answer:

6/10?

Step-by-step explanation:

6 0
3 years ago
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190000000 x 155555555555555555
postnew [5]
I think the answer is :2.955555554 x10 26
4 0
3 years ago
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