Step-by-step explanation:
which language is this.?... try to upload in English..
you may get answers from so many people..
Let Sarah's age be s and Antonio's age be a.
According to your question,
2a + 3s = 34
s = 5a
substituting the value of s in eq. 1,
2a + 3(5a) = 34
= 2a + 15 a = 34
17a = 34
thus, a = 34/17 = 2
substituting the value of a is s,
s = 5(2)
= 10
Thus, Sarah's age is 10 years and Antonio's age is 2 years.
The 4-dimensional volume<span> of a polyhedral </span>pyramid<span> is 1/4 of the </span>volume<span> of the base polyhedron times its perpendicular height, compared to the area of a triangle being 1/2 the length of the base times the height and the </span>volume<span> of a </span>pyramid<span> being 1/3 the area of the base times the height.</span>
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:
0
Step-by-step explanation:
Slope is calculated y2-y1/x2-x1
18-18/0-3
0/-3
0
