Given,
The value of N is 7.
The mean of the data is 13.
Required
The value of sum of the data.
The mean is calculated as,

Hence, the value of sum of data is 91.
Answer:
Either a= -7 or a= 0
Step-by-step explanation:
Pull out like factors:
a2 + 7a = a • (a + 7)
a • (a + 7) = 0
y = sin(360) = sin(0) = 0
answer: y=0
You can use the graph by drawing a unit circle centered about the origin. Then find the point and the corresponding y value.
3
If you subtract for 4 from 7 in the first expression, then h is less than or equal to 3.
If you subtract 1 from 3 in the second expression then h is greater than 2.
Thus the only value of h possible is 3.
Multiply both sides by 4
subtract 24r from both sides
simplify r - 24r to -23r
divide both sides by -23
two negatives make a positive
simplify 14/5/23 to 14/5 x 23
simplify 5 x 23 to 115
switch sides
Answer: r = 14/115.