Answer:
I think the right answer would be 7
Step-by-step explanation:
We got-ta use the equation: CA * BA = DA²
CA = 15 + BA
DA² = 8² = 64
=> (15 + BA) BA = 64
Subtract 15 from each side:
BA(BA) = 49
BA² = 49
Now take the square root of each side
BA = 7
Hope this helps!
Answer: 7 cars
Step-by-step explanation: Since he earned 400$ a week and he had 1450$ by the end, subtract 1450-400 and you get 1050. You then divide 1050 by 150 (1050÷150) and you get 7, so he sold 7 cars
Answer:
-2 < -1
Step-by-step explanation:
-6 < -3
-6/3 < -3/3
-2 < -1
x^2 = -25
there is a solution if you know imaginary numbers
if you do not stop now and say no solution
else
take the square root
x = sqrt (-25)
x =sqrt(-1) sqrt(25)
x=+- 5i
x = 5i, -5i
x^2 =18
take the square root of each side
x =+-sqrt(18)
x=+- sqrt(9)sqrt(2)
x=+- 3sqrt(2)
x=3sqrt(2), -3sqrt(2)
