Answer:
4z -6< - 10= Z= < -1
5z - 3 >7= Z=< 2
Step-by-step explanation:
It will take her 45 minutes to run 5 miles,because 27/3=9 and 9•5=45
B. 74%
This is because the complement plus the original must equal 100%.
So...
100 - 26 = 74
Answer:
x = -7 ±3i
Step-by-step explanation:
(x+7)^2+9=0
Subtract 9 from each side
(x+7)^2+9-9=0-9
(x+7)^2=-9
Take the square root of each side
sqrt((x+7)^2) = ±sqrt(-9)
We know sqrt(ab) = sqrt(a) sqrt(b)
x+7 = ±sqrt(-1) sqrt(9)
We know that sqrt(-1) is the imaginary number i
x+7 = ±i *3
x+7 =±3i
Subtract 7 from each side
x+7-7 = -7 ±3i
x = -7 ±3i
