Answer:
7
Step-by-step explanation:
7*4=28 which is the closest u can get to 30 with out going past it
By definition, the circumference of a circle is:

The area of a circle is:

Where,
r: radius of the circle.
When the radius is double, then the new area is:

Rewriting we have:

In terms of a we have:
Answer:
The new area of the circle in terms of a is:
Answer:
x = 10
Step-by-step explanation:
Make x the subject
2x - 8 = 12
2x = 12 + 8
2x = 20
x = 20/2
x = 10
!!
Answer: Choice D
The roots are -4, 1 and 2
This is the list of x intercepts more or less
The only graph that fits the proper x intercept description is choice D. This is assuming the x intervals are spaced out 1 unit apart for each tickmark.
Answer:
15
Step-by-step explanation:
2x + 3 given x=6
2(6) + 3
12 + 3
15