Atomic Mass on the Elements
Answer:
300
(second answer choice)
Step-by-step explanation:
Recall that the Z-distribution is defined as :

and therefore, to obtain a Z = 2.5 when the mean value
=200, and the standard deviation
= 40 , we solve for "X":

Answer:
The car is driving at a speed of 5,720 feet per minute.
Step-by-step explanation:
1 mile = 5,280 feet
65 miles = 343,200 feet
1 hour = 60 minutes
343,200ft ÷ 60min = 5,720 feet per minute
Answer:
D. 30
Step-by-step explanation:
Given;
Number of friends = 6
Number of blue blocks each friend has =2
Number of red blocks each friend has = 3
We need to find Total number of blocks used in all.
Solution:
we know that they used all their blocks to make the pattern.
First we will find total number of blocks each friend has.
Total Number of blocks each friend has is equal to sum of Number of blue blocks and Number of red blocks.
Framing in equation form we get;
Total Number of blocks each friend = 
Now Total Blocks used is equal to product of number of friends and total number of blocks used by each friend.
Framing in equation form we get;
Total number of blocks used = 
Hence They used 30 blocks to make the pattern.