The inside of the radical must be greater than or equal to zero. When you plug in c=3, the answer is 5 >0. When c=-6, -4 <0. Therefore c=3 is true.
Answer:
(k-w)/a = t
Step-by-step explanation:
k = at + w
Subtract w from each side
k-w = at + w-w
k-w = at
Divide each side by a
(k-w)/a = at/a
(k-w)/a = t
Answer:
12
Step-by-step explanation:
Number of pencils bough by the student = 84
Number of pencils sharpened by the student = 35
Then
The number of pencils that was not sharpened = (84 - 35)
= 49
So 35 pencils have been sharpened and 49 pencils have not been sharpened.
Then Number of pencils unsharpened:Number of pencils sharpened = 49:35
= 7:5
So the ratio of the number of unsharpened pencil to the number of sharpened pencil is 7:5
Answer:
D
Step-by-step explanation:
