Solve.
x + 
= 
- 
x + 
A. - 
B. 
C. - 
D. 
Answer: D
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Provide an appropriate response. Divide a straight angle into 7 equal angles, rounding to the nearest second.
A. 25° 42' 51" B. 25.7° C. 25° 42' 85" D. 25°.714'
Simplify the rational expression.
A. 
B. 
C. 
D. 
Use synthetic division to find the quotient and the remainder when the first polynomial is divided by the second polynomial. 2x5 - x4 + 3x2 - x + 5; x - 1
A. quotient: 2x4 - 3x3 + x; remainder: 6 B. quotient: 2x4 + x3 + 4x2 + 3x; remainder: 8 C. quotient: 2x4 + x3 + x2 + 4x + 3; remainder: 8 D. quotient: 2x4 + x3 - x2 + 2x + 1; remainder: 6
Solve the problem.In one country, it is estimated that in the year 2050, 3% of the population will be over 70. If the population of this country in 2050 is 142 million, how many people will be over 70?
A. 42.60 million B. 2.84 million C. 4.26 million D. 5.68 million