Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.(2,000,000)(0.003)
A. 6.0 × 101
B. 6.0 × 103
C. 0.0
D. 6.0 × 102
Answer: B
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Solve the problem.Bob, the incredible shrinking man, loses half of his height each day after he was exposed to a mysterious form of cosmic radiation. How many days before he is literally "knee-high to a grasshopper"? Assume that a grasshopper's knee is 4 millimeters high and that Bob is 2 meters tall. Round your answer to the nearest whole day. (1000 millimeters = 1 meter)
Fill in the blank(s) with the appropriate word(s).
Find the angle between the given vectors. Round to the nearest tenth of a degree.u = 9i + 6j, v = 2i - 3j
A. 45° B. 90° C. 35° D. 100°
Solve the problem.The orbit of a planet in a distant system is an ellipse with a sun at one focus. For x and y in millions of miles, the equation of the orbit is Find the smallest distance (the perigee) from the planet to the sun. (Use the fact that
where
)
A. 90.4 million mi B. 81.7 million mi C. 73 million mi D. 72.6 million mi
Solve the problem.Matt is going to invest no more than $4000 in two accounts earning 2% and 4% simple interest. He would like the accounts to earn at least $80 after one year. He wants to invest less than $1000 in the account earning 4% simple interest. Write a system of inequalities to describe this situation and solve by graphing.
A.
B.
C.
D.