Simplify using the product rule.(-3x6y)(-2x3y5)
A. 6x9y6
B. 6x18y5
C. -5x9y5
D. -6x9y5
Answer: A
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Analyze the situation and explain how you would make a decision.Your current cell phone company charges $30 per month for unlimited minutes. Another company charges $20 per month for the first 500 minutes plus 5ยข a minute for any additional minutes. Should you keep your current service or switch to the other company?
What will be an ideal response?
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
A man gets a job with a salary of $40,000 a year. He is promised an $1800 raise each subsequent year. Find his total earnings for a 10-year period.
What will be an ideal response?
Simplify. Assume that variables can represent any real number.
A. 7t
B. 24
C. 7
D. 7t2