Answer:
120 = 3y + t
Step-by-step explanation:
120 = 3y + t because you purchase 3 times as many y then t. Overall, your answer should end up as 120 by using an equation like this.
$79.65 is the correct answer
Answer:
Step-by-step explanation:
Complete the square
+ 2x - 13 = 0
+ 2x = 13
+ 2x + = 13 +1 (take 1/2 of the b term , the 2 )
+ 2x + 1 = 14
(x +1)^2 = 14
Answer:
+4i is also a root.
Step-by-step explanation:
Imaginary roots always occur in conjugate pairs.
This means that if -4i is a root of an equation then 4+i should also be a root. -4i can never be the only root.
So, the student's mistake is in claiming that -4i is the only root.
A quadratic equation which has +4i and -4i as roots: (x² + 4) = 0.
Answer:
3
Step-by-step explanation:
4 x 3 = 12
4 ÷ 12 = 3
its like multiplication just changing the way you solve it