Write the number in scientific notation.1,900,000
A. 1.9 × 106
B. 1.9 × 10-7
C. 1.9 × 107
D. 1.9 × 10-6
Answer: A
Mathematics
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Insert a decimal point in the product.441.07 × 10 = 441070
A. 44,107.0 B. 441,070. C. 4410.70 D. 441.070
Mathematics
Solve the equation. Check your solution.10y = 6y + 4 + 3y
A. {40} B. {-4} C. {-40} D. {4}
Mathematics
Find the value of k so that the equation will have exactly one rational solution.9x2 + kx + 25 = 0
A. 15 or -15 B. 30 or -30 C. 30i or -30i D. None
Mathematics
Solve.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 463 vibrations per second and a wavelength of 16.3 ft. Find the wavelength of another tone that has a pitch of 363 vibrations per second.
A. 0.05 ft B. 10,311 ft C. 0.000097 ft D. 20.8 ft
Mathematics