Perform the indicated operation by first converting the numbers to scientific notation. Write the answer in scientific notation.
A. 8 × 104
B. 64 × 105
C. 8 × 10-4
D. 64 × 10-5
Answer: C
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Graph.7x2 + 4y2 - 56 = 0
A. 
B. 
C. 
D. 
Provide an appropriate response.In right triangle ABC with right angle C, find the indicated part. Round to nearest 0.1°. Find A if a = 8 in. and b = 5.4 in.
Fill in the blank(s) with the appropriate word(s).
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = -i + 4j, w = 2i - 3j
A. 160.3° B. 63.4° C. 70.3° D. 0.9°
Solve the problem.Brand A soup contains 854 milligrams of sodium. It is recommended that a person requiring 2000 calories daily consume 2500 mg of sodium or less per day. Graph the function, f, that computes the number of mg of sodium in x cans of soup together with y1 = 2500, y2 = 5000, y3 = 7500 in [0, 10, 1] by [0, 8000, 1000]. Use the intersection-of-graphs method to find how many cans of soup contain 1, 2, and 3 daily allowances of sodium.
A. 
1 allowance = 3 cans;
2 allowances = 5 cans;
3 allowances = 8 cans
B. 
1 allowance = 3 cans;
2 allowances = 6 cans;
3 allowances = 9 cans
C. 
1 allowance = 6 cans;
2 allowances = 9 cans;
3 allowances = 3 cans
D. 
1 allowance = 3 cans;
2 allowances = 6 cans;
3 allowances = 9 cans