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Greeley [361]
3 years ago
12

Anne’s family is driving to her uncle’s house. The family travels 383.5 miles between 10:15 a.m. and 4:45 p.m.Anne tells her fam

ily, "It’s a good thing we traveled as fast as we did. If our rate had been 50 miles per hour, we wouldn’t have gotten to his house until about …

Mathematics
1 answer:
Ede4ka [16]3 years ago
8 0

Answer:

They would have arrived at 5:55pm

Step-by-step explanation:

kindly see the attached file for more explanation

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Mathematics, 19.11.2019 04:31, RiverH246
Darya [45]

The volume of one tissue box is 170 cubic inches, so the volume of 25 tissue boxes are 4250 cubic inches.

3 0
3 years ago
The life of a semiconductor laser at a constant power is normally distributed with a mean of 7,000 hours and a standard deviatio
Scrat [10]

This question not incomplete

Complete Question

The life of a semiconductor laser at a constant power is normally distributed with a mean of 7,000 hours and a standard deviation of 600 hours. If three lasers are used in a product and they are assumed to fail independently, the probability that all three are still operating after 7,000 hours is closest to? Assuming percentile = 95%

Answer:

0.125

Step-by-step explanation:

Assuming for 95%

z score for 95th percentile = 1.645

We find the Probability using z table.

P(z = 1.645) = P( x ≤ 7000)

= P(x<Z) = 0.95

After 7000 hours = P > 7000

= 1 - P(x < 7000)

= 1 - 0.95

= 0.05

If three lasers are used in a product and they are assumed to fail independently, the probability that all three are still operating after 7,000 hours is calculated as:

(P > 7000)³

(0.05)³ = 0.125

7 0
3 years ago
X =<br> 95<br> (7x - 4)<br> (3x + 23)°<br> (9x – 6)
anygoal [31]

Answer:

661 is for the first 308 for second 849 for last

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP ASAPPP !!! WILL GIVE BRAINLIEST AND 5 STAR RATING
natta225 [31]

Answer:

1/3

Step-by-step explanation:

4 0
2 years ago
a student says that if 5x^2 = 20, then x must be equal to 2. do u agre or disagree with the student? justify your answer.​
inna [77]

Answer:

The student is correct.

Step-by-step explanation:

Given that 5x² = 20:

It is true that the value of x = 2 because 2² = 4, and when you multiply 4 with 5, you'll get a product of 20:

5x² = 20

5(2)² = 20

5(4) = 20

20 = 20

Therefore, the student is correct that x = 2.

7 0
2 years ago
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