Answer:
D
Step-by-step explanation:
Lines EF and GH are already parallel. Translating them 2 units to the side without changing how far apart they are vertically means they won't intersect and will remain the same distance apart.
Answer:
in standard form: 641000000
in scientific form: 6.41 * 10^8
Step-by-step explanation:
hi again :)
first, make each term into standard form: (6.7 * 10^8) = 670000000 and (2.9 * 10^7) = 29000000
670000000 - 29000000 = 641000000
in scientific notation: 641000000 = 6.41 * 10^8
hope this helps! <3
What is the mean, median and mode for...45,50,55,55,55,60,60,60,65,65,70?
Alexxx [7]
Answer:
Mean = 58.18
Median = 60
Modes = 55 and 60
Step-by-step explanation:
To find the mean/average, add up all the numbers and divide the sum by the # of numbers there are (ex. there are 11 numbers so divide the sum by 11).
The median is the middle number of a set. In this case, the middle number is easy to see because the # of numbers is odd, but if it was even, just find the average of the two middle numbers.
The mode is/are the most frequent number(s) in the set. In this set, the numbers that appear the most are 55 and 60.
Substract by 12 from 42, and keep going down until you hit -54, which is 8 hours!
3x - y = 14
-9x + 3y = -42...divide by -3
3x - y = 14...same as first equation....means same line...means infinite solutions
answer is : 3rd answer choice
