Answer:
42.57
Step-by-step explanation:
Add all of the numbers together:
10+ 39+ 71+ 39+ 76+ 38+ 25=298
Divide by the total numbers that are there:
298÷7=42.57
Hope this helps ^-^
Find the change between the first two sets:
12-9 = 3
14.4 - 10.8 = 3.6
3.6/3 = 1.2
Now find the change between the last two sets:
12 - -3 = 15
14.4 - 3.6 = 10.8
10.8/15 = 0.72
1.2 does not equal 0.72 so the answer is No
Answer:
Step-by-step explanation:
7x + 3 = 9x - 19
-2x + 3 = -19
-2x = -22
x = 11
DE= 7(11) + 3 = 77 + 3 = 80
EF = 9(11) - 19 = 99 - 19 = 80
80 + 80 = 160 for DF
7+-3i is the correct answer because you add 4+3 because they are like terms then you add 2i+-5i because they are like terms
Answer:
the answer is x=15
Step-by-step explanation:
