area = pi X radius squared
so area = 3.14 x 124^2
= 3.14 x 15376 = 48,280.64 square centimeters.
Answer:
x^2-1^2
Step-by-step explanation:
formula:
(a-b)(a+b)=a^2-b^2
Sorry but this problem is not complete to my expectation x is going to equal 354
Answer: C
Step-by-step explanation:
We know that the answer is automatically C. What Kylie did was square each term. That is incorrect. Difference of squares is the entire factor squared, not each term. It is (x-1)(x+1) for example. Kylie did not understand this problem, nor did she solve it correctly. Therefore, C is the correct answer.
Answer:
A. 5b > 650 + 2.25b; B. 237 brownies
Step-by-step explanation:
A. Set up the inequality
Let b = the number of brownies. Then
Cost = 650 + 2.25b
Sales = 5b
Profit = Sales - Cost
To make a profit, we must have
Sales - Cost > 0 or
5b > 650 + 2.25b
2. Solve the inequality
3. Check
OK.
