Answer:
x = 12√2
Step-by-step explanation:
This is a right triangle, which makes things easier. Both legs have length 12.
Using the Pythagorean Theorem, we get x^2 = 12^2 + 12^2, or 2(144).
Solving for x, we get x = 12√2.
Answer:
Option A is correct
Step-by-step explanation:
The given equation is
h = -16t^2+6t+4
When the ball will hit the ground, height h = 0
Putting value of h = 0
0 = -16t^2+6t+4
Now solving to find the value of t
=> -16t^2+6t+4 = 0
Multiply with -1
16t^2-6t-4=0
Using quadratic formula to find value of t
a= 16, b= -6 and c= -4
Putting values,
Since time cannot be negative, so t = 0.721 or 0.72
So, Option A is correct
-12 - (-17)
Multiply -1 into the parenthesis:
-12 + 17
Add:
5
Answer: simple random sampling
Step-by-step explanation:
In statistics, when a subset of individuals known as sample chosen from a population by a random selection of individuals such that the chances of selecting each individual is same, then the sampling method is called simple random sampling method.
Given: To assess the learning outcomes of a Statistic course, 5 students are chosen at random from each of the 30 Statistics classes.
here chances for selectin students is same.
The sampling method used here : " simple random sampling "
120/3=40, 40 times 8 = 320 which means the answer is 320 miles
