Express in scientific notation.490,000
A. 4.9 × 10-4
B. 4.9 × 104
C. 4.9 × 10-5
D. 4.9 × 105
Answer: D
Mathematics
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Plot the given points and sketch the line that passes through them.(0, 1) and (-1, 0)
A. 
B. 
C. 
D. 
Mathematics
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Mathematics
Perform the operation and write the result in the standard form.(-4 + 6i) + (8 + 4i)
A. -4 + 10i B. 8 + 10i C. 4 + 10i D. 4 + 14i
Mathematics
Solve the equation. Express radicals in simplest form.(r + 2)2 = 14
A. {2 + 
, 2 - 
}
B. {12}
C. {-2 + 
, -2 - 
}
D. {
, 
}
Mathematics