Solve.Initially, a pendulum swings through an arc of 3 feet. On each successive swing, the length of the arc is 0.8 of the previous length. After 10 swings, what total length will the pendulum have swung (to the nearest tenth of a foot)?
What will be an ideal response?
approximately 13.4 feet
Mathematics
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Solve the problem.Two friends are planning to meet between 2:00 pm and 3:00 pm. They agree that whoever arrives first will wait only 10 minutes and then leave. Letting 0 represent 2:00 and 60 represent 3:00, graph the possible times when the friends will actually meet.
A. 
B. 
C. 
D. 
Mathematics
Establish the identity.
= 
What will be an ideal response?
Mathematics
Subtract the fractions. Write the answer in lowest terms.
A. 
B. 
C. 
D. 18
Mathematics
Express the English phrase using an algebraic expression.Three times a number x, increased by twelve
A. 3 + 12x B. 3x + 36 C. 3x - 12 D. 3x + 12
Mathematics