Answer:
g = 7 yards
Step-by-step explanation:
you have 7
yards for the angle adjacent 30 deg.
tan 60 =
tan 60 = 7
/ g
7 * root(3) / g = root(3)
7/g = 1
g = 7 yards
Are you talking about 7-day period instead? Or is that really 70?
Anyway, the mean number of phone calls received over the period of time given would be 4 calls. I got to this answer through adding all of the calls and dividing them by the number of days.
Answer:
There are 60 marbles in the bag
Step-by-step explanation:
The total number of marbles times the probability of red marbles = number of red marbles
total * 7/10 = 42
Multiply each side by 10/7
total * 7/10 * 10/7 = 42*10/7
total
60
There are 60 marbles in the bag
Answer:
Option (a) 
Step-by-step explanation:
The given expression is :

We need to rewrite the sum using sigma notation.
The numerator is 3 in all terms.
At denominator, in first term (1)(2), in second term (2)(3) and so on.
A general term for the denominator is k(k+1).
Sigma notation is :

Hence, the correct option is (A).