Line B
Explanation:
The slope is negative so the line is going to the left. The y-intersect is 1.
21.W hich value of y makes the following equatoin true?
answer:B
Answer:
85, 68, 51
Step-by-step explanation:
Average: The sum of all the numbers divided by the number of numbers
If the ratio of the scores is 5 : 4 : 3, let's just set it as 5x : 4x : 3x
Then using the definition of an average, we can write this equation.
(5x + 4x + 3x) / 3 = 68
Multiply both sides by 3.
5x + 4x + 3x = 68 * 3
Simplify.
12x = 204
x = 17
Now, substitute x = 17 into the original scores (5x, 4x, and 3x)
5x = 5 * 17 = 85
4x = 4 * 17 = 68
3x = 3 * 17 = 51
Just in case, let's check this answer. Find the average of the 3 test scores.
(85 + 68 + 51) / 3 =
204 / 3 = 68
Thus, the answers are correct
Answer:
2:3
Step-by-step explanation:
V = 4/3*pi*r^3
Diameter = 2r
Looks like the series is supposed to be
The series telescopes; consider the 
th partial sum of the series,
As 
, the second term converges to 0, leaving us with
