Write the following proportion.7 acres is to 5.2 acres as 10.5 acres is to 7.8 acres.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
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Find the area.
A. 351 mi2 B. 1404 mi2 C. 702 mi2 D. 648 mi2
Solve the problem.The half-life of carbon-14 is 5730 years. This means that every 5730 years, the amount of carbon-14 is reduced by 50 percent. Assume that there are currently 3 milligrams of carbon-14 in a piece of petrified wood. Let f(t) represent the amount (in milligrams) of carbon-14 in the wood at t years from now.i) Find a formula for f.ii) How much carbon-14 will be in the piece of wood 1000 years from now?
What will be an ideal response?
Provide the proper response.If two nonvertical lines never intersect, what do we know about their slopes?
Fill in the blank(s) with the appropriate word(s).
Use the product rule for exponents to simplify the expression, if possible. Write the answer in exponential form.(-3)8(-3)3
A. (-3)11 B. 911 C. 311 D. 924