In the list of terms, identify the numerical coefficient of each term in the order given and determine whether the terms are like or unlike.11a5, 11a4
A. 5, 4; like
B. 11, 11; unlike
C. 11, 11; like
D. 5, 4; unlike
Answer: B
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Solve the problem.The distance an object is from the ground after being tossed from a hot air balloon 750 feet in the air is a function of time: f(t)
where f(t) is height and t is the amount of time the object has been in the air. Predict the height of the object after 5.5 seconds.
A. 696.10 feet B. 228.33 feet C. 0 feet D. 297.63 feet
Solve the problem.The formula P = 0.68x2 - 0.048x + 1 models the approximate population P, in thousands, for a species of fish in a local pond, x years after 1997. During what year will the population reach 33.984 thousand fish?
A. 2005 B. 2003 C. 2006 D. 2004
Subtract.0.95 - (-0.76)
A. 0.19 B. 1.71 C. 1.81 D. 0.722
The pH of an acidic solution is a measure of the concentration of the acid particles in the solution, with smaller values of the pH indicating higher acid concentration. In a laboratory experiment, the pH of a certain acid solution is changed by dissolving over-the-counter antacid tablets into the solution. In this experiment, the pH changes according to the equation pH = 4.8 +lg
where x is the number of grams of antacid added to the solution. What is the pH of the solution after the addition of 0.1 grams of antacid tablet? Round your answer to two decimal places.
a. 4.8 b. 4.28 c. –0.18 d. 4.976 e. 4.62