Solve the equation for the unknown quantity.2r + 5 = 21
A. 8
B. 18
C. 5
D. 14
Answer: A
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Decide whether the statement makes sense. Explain your reasoning.We will never be able to send our daughter to college. In order to have $100,000 in 20 years we would have to save at least $500 each month, That's more than we can afford.
What will be an ideal response?
Establish the identity.sin3 3x = 
(sin 3x)(1 - cos 6x)
What will be an ideal response?
Answer the question.You have a choice between going to an in-state college where you would pay $6000 per year for tuition and an out-of-state college where the tuition is $9000 per year. The cost of living is higher at the in-state college, where you can expect to pay $950 per month in rent, compared to $500 per month at the other college. You will pay $1900 per year to travel back and forth from the out-of-state college. Assuming all other factors are equal, which is the less expensive choice on an annual basis? Find the cost of each college for one year.
A. In-state $17,700, out-of-state $16,900 B. In-state $17,700, out-of-state $15,000 C. In-state $17,400, out-of-state $16,900 D. In-state $17,400, out-of-state $15,000
Find the exact value of the expression.sin 15°
A. - 
B. 
C. - 
D. 