Step-by-step explanation:
Given: (a+b)²
To prove: (a+b)² = a² + 2ab + b²
Proof:-
(a+b)² = (a+b)(a+b)
(a+b)²=a(a+b)+b(a+b)
(a+b)² = a²+ab+ab+b²
(a+b)² = a²+2ab+b².
Answer:
A
Step-by-step explanation:
miles over hours
40 over 1
120 over 3
Answer:
Step-by-step explanation:
The point at the terminal side of an acute angle is given by 
.
That is,
and 
.
Let r be the length of line segment drawn from the origin to the point and is given by the formula:
Substituting the values of x and y into r,
Thus, 
Also, 
is given by:
Substituting values of x and r,
Answer: a. Positive, because the products (3)(-3) and (-2)(4) are negative, and the product of two negative numbers is positive
Step-by-step explanation: It is also possible to rearrange the factors.
(3)(4) = 12 a positive number.
(-3)(-2) = 6, a positive number. Again "a negative times a negative is a positive" --Jaime Escalante, <em>Stand and Deliver</em>
Now you have two positive numbers: 12×6 = 72
The product is positive either way.
Answer:
283.3%
Step-by-step explanation:
5/6 equals 0.83 repeating and it already has 200% for the whole number 2
