Answer:
To determine if the point is a solution, substitute the x value into the right side of the inequality and compare the result with the y value of the point.
- x + 2 = - 1 + 2 = 1
Now - 3 < 1
Thus (1, - 3) is not a solution
Step-by-step explanation:
Answer:
It will take 12 years for the trees to be at the same height.
Step-by-step explanation:
Answer:
Step-by-step explanation: 2.00 x 30 hrs = 60.00 dollars for the fill 30 hours.
Take the 60.00 + his tips 310.50= 370.50 was he Total earnings
Answer:x7
Step-by-step explanation:
Answer:
a) 17.6 + 5.4i
b) 37.6
Step-by-step explanation:
a) (9 + 9.4i) + (8.6 - 4i)
Collect like terms:
9 + 8.6 + 9.4i - 4i
= 17.6 + 5.4i
b) (9.4i)(-4i)
Expand the brackets:
9.4 * -4 * i * i
![i = \sqrt{-1}](https://tex.z-dn.net/?f=i%20%3D%20%5Csqrt%7B-1%7D)
Therefore, i * i = -1
=> (9.4i)(-4i) = -37.6 * -1
= 37.6