Answer:
Mean track length for this rock specimen is between 10.463 and 13.537
Step-by-step explanation:
99% confidence interval for the mean track length for rock specimen can be calculated using the formula:
M±
where
- M is the average track length (12 μm) in the report
- t is the two tailed t-score in 99% confidence interval (2.977)
- s is the standard deviation of track lengths in the report (2 μm)
- N is the total number of tracks (15)
putting these numbers in the formula, we get confidence interval in 99% confidence as:
12±
=12±1.537
Therefore, mean track length for this rock specimen is between 10.463 and 13.537
Answer:
24) A
22) B
Step-by-step explanation:
24)
Original Price: d
Sale: 30%
A sale means that a value is subtracted from the original price
d - 30% = 0.7d
All options given:
A) 0.3d
B) 0.7d
C) d - 0.3d = 0.7d
D) (1.0 - 0.3)d = 0.7(d) = 0.7d
All of these options are equal to the price after the sale, except A.
A is the answer to question 24
22) m > 0, n > 0 Use an example to represent m and n
m = 1, n = 2 = -0.5
-0.5 is a rational, negative number
The answer to question 22 is B
Hope this helps :)
Answer:
Your correct answer is d. Harry and Helen will receive a refund of $555. explain please
Step-by-step explanation:
Hope this helps :) -Mark Brainiest Please :)
Answer:
The triangle and the square have the same area because they both have four squares
Step-by-step explanation:
The square has four that are easily shown but the triangle has one full one but when two are split together like some of them when you put the two together they equal one whole.
Have a wonderful day/night/afternoon
Let's see....
Let's first simplify step-by-step.
2/4 - 8z + 2(2-5)
= 1/2 + - 8z + -6
Combine Like Terms:
= 1/2 + -6
= (- 8z) + (1/2 + -6)
=(- 8z) + (1/2 + -6)
= - 8z + -11/2
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Our answer:
= - 8z + -11/2
Hope This Helps!!!!!!!!
