HRS - Ask. Learn. Share Knowledge. Logo

Questions in Grade College

[Done] If [tex]$3^{2 x+1}=3^{x+5}$[/tex], what is the value of x? A. 2 B. 3 C. 4 D. 6

[Done] The function [tex]$s=f(t)$[/tex] gives the position of an object moving along the [tex]$s$[/tex]-axis as a function of time [tex]$t$[/tex]. Graph [tex]$f$[/tex] together with the velocity function [tex]$v(t)=\frac{d s}{d t}=f^{\prime}(t)$[/tex] and the acceleration function [tex]$a(t)=\frac{d^2 s}{d t^2}=t^{\prime \prime}(t)$[/tex], then complete parts (a) through (f). [tex]$s=104 t-16 t^2, 0 \leq t \leq 6.5$[/tex] (a heavy object fired straight up from Earth's surface at [tex]$104 f / sec$[/tex]) a. The object is moving down for [tex]$t$[/tex] in the interval ______ but is never moving up. A. The object is moving down for [tex]$t$[/tex] in the interval ______ but is never moving up. B. The object is moving down for [tex]$t$[/tex] in the interval (3.25, 6.5) and the object is moving up for [tex]$t$[/tex] in the interval [0, 3.25). C. The object is never moving down, but is moving up for [tex]$t$[/tex] in the interval ______ D. The object is never moving down or up. c. When does the object change direction? Select the correct answer below, and if necessary, fill in the answer box to complete your choice. A. The object changes direction at [tex]$t = 3.25$[/tex] sec. B. The object never changes direction. d. When does the object speed up and slow down? Select the correct answer below, and if necessary, fill in the answer box(es) to complete your choice. A. The object never speeds up, but slows down for [tex]$t$[/tex] in the interval ______. B. The object speeds up for [tex]$t$[/tex] in the interval (3.25, 6.5] and the object slows down for [tex]$t$[/tex] in the interval [0, 3.25). C. The object speeds up for [tex]$t$[/tex] in the interval ______ but never slows down. D. The object never speeds up or slows down. e. When is the object moving fastest (highest speed)? Slowest? Select the correct answer below and fill in any answer boxes to complete your choice. A. The object is moving fastest at [tex]$t =$[/tex] ______ when the speed is ______ ft/sec. The object is moving slowest at [tex]$t =$[/tex] ______ when the speed is ______ ft/sec B. The object is moving at a constant speed of ______ ft/sec.

[Done] Which is the best definition of denotation? A. the meaning you find from looking at a visual, either in parts or as a whole B. the study of signs or communication C. the literal, or real, meaning of what is being communicated

[Done] Factor: $(x^2-11 x+24)$ A. $(x-8)(x-3)$ B. $(x+8)(x+3)$ C. $(x+6)(x+4)$ D. $(x-6)(x-4)$

[Done] Select the correct answer. Under which type of policy does the government reduce its expenditures and increase tax rates? A. contractionary monetary policy B. contractionary fiscal policy C. expansionary fiscal policy D. expansionary monetary policy

[Done] Select the correct answer. What is the origin of the word renaissance? A. It comes from the word rebirth. B. It comes from the word revival C. It comes from the word reason. D. It comes from the word redeem.

[Done] Simplify. Write your response in $a+b i$ form. $(4+10 i)^2=$

[Done] Choose the pronoun that replaces the underlined word correctly. The runners were thrilled when Speedy Shoes offered the runners each a free pair of training shoes. A. they B. them C. their D. there

[Done] Which of the following is true of Star Ratings? Select the BEST answer, then select Confirm. A. The international standard is based on Ten Stars, not Five Stars B. The term "Five-Star" is based on specific, globally accepted criteria C. There is no international standard for a Five-Star hotel

[Done] True or false? A radius meets a tangent line at a 90° angle.