Solve the problem. If necessary, round to the nearest tenth or as indicated. Mustaf flew his helicopter at a speed of 98 km/hr. Express this speed in miles per hour.
A. 156.8 mi/hr
B. 61.3 mi/hr
C. 6.1 mi/hr
D. 1568 mi/hr
Answer: B
Mathematics
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Write the number in scientific notation.0.00006273
A. 6.273 × 104 B. 6.273 × 105 C. 6.273 ± 10-4 D. 6.273 × 10-5
Mathematics
Determine whether the system is consistent.x1 + x2 + x3 = 6x1 - x3 = -2 x2 + 3x3 = 11
A. Yes B. No
Mathematics
Solve the quadratic equation using the square root property. Express imaginary solutions in a + bi form.(y + 7)2 = -3
A. {
- i
}
B. {7 ± i
}
C. {-7 ± i
}
D. {-7 + i
}
Mathematics
Find the value of the expression using the given values.
?x = 4, y = 6
A. 33 B. -66 C. -18 D. 9
Mathematics