Half of 36 is 18. This is proven as 18 x 2 = 36.
17)
x² + 8 = -8
x² = -8 - 8
x² = 16
x = ±√-16
x = ±√16i
x = <span>±4i
</span>
18)
x² + 5 = -3
x² = -3 - 5
x² = -8
x = ±√-8
x = ±√8i
x = ±2√2i
19)
x² + 3 = 0
x² = -3
x = ±√-3
x = <span>±</span>√3i
hope this helps, God bless!
Answer: 30 gallons
Step-by-step explanation:
Let the number of gallons that are in a full tank be represented by x.
Since there are 6 gallons in a tank that is 20% full, this will be set up in an equation as:
20% × x = 6
20/100 × x = 6
0.2 × x = 6
0.2x = 6
x = 6/0.2
x = 30
There are 30 gallons in a full tank
Answer:
B or C i think...let me know if im wrong
Step-by-step explanation:
The correct answer would be 23% because 28+34+40+22=124, and if you do the butterfly method you would multiply 28 by 100 and you get 2800 then divide that by 124 and you get 22.5% but since you have to round to the nearest percent it's 23%