Answer: last option
Step-by-step explanation:
The formula to find the Discriminant is:
Given the quadratic equation 
, you can identify that:
Now, you can substitute values into the formula , then:
As the Discriminant is greater than 0 (
), then the quadratic equation has two distinct real solutions.
Expanded Notation Form:
5,000,000
+ 600,000
+ 70,000
+ 8,000
+ 200
+ 0
+ 9
Expanded Factors Form:
5 × 1,000,000
+ 6 × 100,000
+ 7 × 10,000
+ 8 × 1,000
+ 2 × 100
+ 0 × 10
+ 9 × 1
Expanded Exponential Form:
5 × 106
+ 6 × 105
+ 7 × 104
+ 8 × 103
+ 2 × 102
+ 0 × 101
+ 9 × 100
There’s not enough information to solve this problem
"2 times pi times r", which can be written as "2*pi*r", represents the circumference of a circle. This is the distance around the circle (aka perimeter)
r is the radius of the circle
if you know the diameter then you can divide the diameter in half to get the radius (example: diameter is 10 so the radius is 5)
Answer:
30 min
Step-by-step explanation:
She takes 45 minutes to run 6 miles.
Lets simplify this. If we divide by 3, then we know that:
She takes 15 minutes to run 2 miles.
Therefore, to find the amount of time it takes to run 4 miles, we just multiply 15 by 2.
Therefore it takes her 30 mins to run 4 miles.
