Answer:
-28
Step-by-step explanation
70/-2.5=-2.5x/-2.5 divide
-28=x
Answer:
234 inches
Step-by-step explanation:
Sorry if it's wrong!
Answer: k = {8, -8}
<u>Step-by-step explanation:</u>
In order for a quadratic equation to have exactly one solution, the discriminant must equal zero. → b² - 4ac = 0
4x² + kx + 4 = 0
↓ ↓ ↓
a=4 b=k c=4
b² - 4ac = 0
k² - 4(4)(4) = 0
k² = 64
k = √64
k = ± 8
The answer to this problem is -5x=8
