Answer:
5002
Step-by-step explanation:
The given series is an arithmetic progression with
a = the first term
d = common difference
n = number of terms
S = the sum of the nth term
Recall that
S = n/2(2a + (n-1)d)
As such,
a = 2
d = 8 -2 = 14 - 8 = 6
n = 41
Hence
S = 41/2(2*2 + (41 - 1)6)
= 41/2 ( 4+ 240)
= 41 * 244/2
= 5002
Answer: They would have to score an 88%
Step-by-step explanation:
1.) The mean of 84, 92, 83, and 78 is 337
2.) 337 divided by 4 is 84.25%
3.) If you add 88 to 337 and divide by 5, you get 85%
Answer: (a) spuriousness relationship
Step-by-step explanation:
Spurious occurs between two variables that are actually caused by a third variable. Examples is like a number of teachers in region and number of people learn from college.
568 would be estimated to 570 for nearest tens or 600 for nearest hundreds
Answer:
64 mph
Hope this helps :)
Step-by-step explanation:
1/4 of an hour is 15 minutes
If he drove 16 miles in 15 minutes
16 * 4 = 64
He drove 64 mph
How long will it take to reach 224 miles?
going at a speed of 64 mph it will take 3 and a half hours
224/64 = 3.5
