4x2+28x+49=0(2x+7)(2x+7)=0
2x+7=0 or 2x+7=0
x=
Answer:
the mean is the average of all the numbers in a sequence; whereas the median is the middle number. When calculating the mean, you add all the numbers and divide by the amount of numbers; however, when you calculate median all you have to do is put the numbers in order and find the number that is in the middle
Step-by-step explanation:
Answer:
314 cm³
Step-by-step explanation:
Given ::
Cone height, h = 12 cm
Diameter of cone, d = 10 cm
Hence, radius, r = diameter / 2 = 10/2 = 5cm
The volume of a cone = 1/3 πr²h
V = 1/3 * 3.14 * 5² * 12
V = 3.14 * 25 * 4
V = 314cm³
Your brother is correct, because the sequence is increasing.