Convert the given number to scientific notation.0.000426
A. 4.26 × 10-3
B. 4.26 × 10-4
C. 4.26 × 10-5
D. 4.26 × 104
Answer: B
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Solve the equation for the indicated variable.t = to + 
P for Ps (constant volume temperature scale)
A. Ps = 
B. Ps = 
C. Ps = 
D. Ps = 
Solve the problem.A ball is thrown upward with an initial velocity of 21 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time it takes the ball to hit the ground. Round your answer to the nearest tenth of a second.
A. 7.6 sec B. 7.3 sec C. 7.0 sec D. 10.3 sec
Decide whether the following is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.
- 4 = 1
A. Equation; 12 - x B. Expression; -20 C. Equation; 20 D. Expression; -12
Graph the rational function.f(x) = - 
A. 
B. 
C. 
D. 