Verify the identity.sin 
= 
(cos ? + sin ?)
What will be an ideal response?
sin 
= sin 
cos ? + sin ? cos 
= 
(cos ? + sin ?).
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A balloon is leaking air, and the rate of change in volume is proportional to the volume. Let V denote the volume, in liters, of air in the balloon after t seconds, and take -0.03 to be the constant of proportionality.
?
A: Write an equation of change satisfied by 
.
?
B: If there are initially 8 liters of air in the balloon, find a formula that gives V as a function of t. Write your answer using the alternative form for an exponential function.
?
C: How long will it take for 10% of the initial volume of air to leak from the balloon? Round your answer to two decimal places.
What will be an ideal response?
Translate the phrase to an algebraic expression. Use "x" to represent "a number". The product of a number and -4
A. x - 4
B. x ? 
C. x ? 4
D. x ÷ 
Solve the problem.Michelle bought 12 oz of a certain cereal for $0.88. What was the price per pound of the cereal to the nearest cent?
A. $0.66 B. $1.24 C. $0.07 D. $1.17
Find the area under the graph of y = 4e-3x for x ? 1. Enter your answer as aeb with any fractions reduced of form 
.
What will be an ideal response?