Questions in Grade College

Questions in Grade College

[Terjawab] A pharmacist has 80 milliliters of a $25 \%$ saline solution. Which expression can be used to find the percentage concentration of the final solution if she adds $x$ milliliters of a $10 \%$ saline solution? $y=\frac{0.25(80)+0.1 x}{x} \cdot 100$ $y=\frac{0.25(80)+0.1 x}{80} \cdot 100$ $y=\frac{0.25(80)+0.1 x}{80+0.1 x} \cdot 100$ $y=\frac{0.25(80)+0.1 x}{80+x} \cdot 100$

[Terjawab] The efficiency of a machine can be increased by A. decreasing distance. B. decreasing force. C. reducing friction. D. reducing work.

[Terjawab] Which of the following statements is true regarding modes of operation in vehicles featuring eAWD? A. They have either a transfer case or power transfer unit (PTU). B. They have independent electric drive transmissions. C. The transmission may feature one or two drive motors. D. Both B and C.

[Terjawab] Determine an equation of the line tangent to the curve [tex]y=\sqrt{x-8}[/tex] at the point with x-coordinate 9. A. [tex]-x+2 y+7=0[/tex] B. [tex]x-2 y+8=0[/tex] C. [tex]x-2 y+7=0[/tex] D. [tex]-x+2 y+8=0[/tex]

[Terjawab] A toy plane has a mass of 2.5 kg and is 18 m above the ground. It is moving at [tex]$4.5 m / s$[/tex]. How much mechanical energy does the toy plane have? A. 416 J B. 441 J C. 466 J D. 491 J

[Terjawab] What's the relationship between the temperature and the density of a substance? A. As the temperature increases, the density decreases. B. Temperature doesn't affect the density of a substance. C. As the temperature decreases, the density decreases. D. Temperature decreases the density of a substance only at high altitudes.

[Terjawab] Which of the following demonstrates the zero property? A. [tex]$0 \times x=x \times 0$[/tex] B. [tex]$0=x \times 0$[/tex] C. [tex]$0=x+0$[/tex] D. [tex]$0+x=x+0$[/tex]

[Terjawab] Circle O has a circumference of approximately [tex]$250 \pi ft$[/tex]. What is the approximate length of the diameter? A. 40 ft B. 80 ft C. 125 ft D. 250 ft

[Terjawab] Read the following poem by John Masefield, 'Sea Fever', and answer the questions. And all I ask is a tall ship and a star to steer her by, And the wheel’s kick and the wind’s song and the white sail’s shaking, And a grey mist on the sea’s face, and a grey dawn breaking. I must go down to the seas again, for the call of the running tide Is a wild call and a clear call that may not be denied; And all I ask is a windy day with the white clouds flying, And the flung spray and the blown spume, and the sea-gulls crying. How many stanzas are in the poem? What is the rhyme scheme of the first stanza? What poetic structure does Masefield use?

[Terjawab] Determine [tex]L^{-1}\left\{F\right\}[/tex]. [tex]F(s)=\frac{4 s^2+84 s+336}{(s-2)\left(s^2+12 s+37\right)}[/tex] Click here to view the table of Laplace transforms. Click here to view the table of properties of Laplace transforms. [tex]L^{-1}\left\{F\right\}=\square[/tex]