Answer: (A)
(B)
(C)
Step-by-step explanation:
- Null hypothesis
: It is a statement showing population parameters as per the objective of the study. It generally takes "≤,≥,=" signs. - Alternative hypothesis
: It is also a statement describing population parameters as per the objective of the study. It generally takes ">, <, ≠" signs.
(A) Objective: Scores in second-year calculus are scaled so the average each year is equivalent to a 75 or not.
(B) Objective: The mean time is 24 seconds or more for one particular maze.
(C) Objective: The average square footage of one-bedroom apartments in a new student-housing development is advertised to be 850 square feet or smaller.
Answer:
Step-by-step explanation:
Given
Shape: Sphere
Solving (a): The Volume
This is calculated as:
Take 
as 3.14 and substitute 14 for r
Solving (b): The Surface Area
This is calculated as follows:
Take as 3.14 and substitute 14 for r
Add 1 to 34 four times.
35, 36, 37, 38.
38 is your final answer.
The expression factorized completely is (h +2k)[(h+2k) + (2k-h)]
From the question,
We are to factorize the expression (h+2k)²+4k²-h² completely
The expression can be factorized as shown below
(h+2k)²+4k²-h² becomes
(h+2k)² + 2²k²-h²
(h+2k)² + (2k)²-h²
Using difference of two squares
The expression (2k)²-h² = (2k+h)(2k-h)
Then,
(h+2k)² + (2k)²-h² becomes
(h+2k)² + (2k +h)(2k-h)
This can be written as
(h+2k)² + (h +2k)(2k-h)
Now,
Factorizing, we get
(h +2k)[(h+2k) + (2k-h)]
Hence, the expression factorized completely is (h +2k)[(h+2k) + (2k-h)]
Learn more here:brainly.com/question/12486387
Answer:
Step-by-step explanation:
Using Tangent Secant theorem:
(x)² = (2)(2+6)
x² = 2(8)
x² = 16
