Step-by-step explanation:
1st digit is 1 number (1)
2nd digit is (3,4,5) so it's 3 numbers
third digit is (6,7,8,9) is it's 4 numbers
last 7 digits is 10 (0,1,2,3,4,5,6,7,8,9)
multiply
1*3*4*10=120
so answer is 120 phone numbers
Answer:
the y-intercept is -2 or (0, -2)
.
To solve this problem, we need to simplify the expression .
We know that
Therefore:
Volume of a cube = (edge)^3
In this problem,
Volume = 216in^2
Edge = ?
Let's plug our values into the formula above.
216in^3 = (edge)^3
Take the cbrt of both sides.
6in = edge
The length of each edge = 6in
C
a=r^2
To find the radius, divide the diameter by 2
r=d/2
r=10/2
r=5
a=5^2
a=25
So, choice C is correct
Hope this helps! :)