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Questions in Grade College

📝 Answered - Which of the following expressions is equivalent to $92 x^2+x-1+x y+\frac{2 x^3}{x}$? A. $94 x^2+x+x y-1$ B. $92 x^2+3 x+x y-1$ C. $2 x^2+92 x+y-1$ D. $2 x^3+92 x^2+2 x+x y-1$

📝 Answered - What are the $x$- and $y$-coordinates of point P on the directed line segment from $A$ to $B$ such that $P$ is $\frac{2}{3}$ length of the line segment from $A$ to $B$? $\begin{array}{l} x=\left(\frac{m}{m+n}\right)\left(x_2-x_1\right)+x_1 \\ y=\left(\frac{m}{m+n}\right)\left(y_2-y_1\right)+y_1 \end{array}$ $(2,-1)$ $(4,-3)$ $(-1,2)$ $(3,-2)$

📝 Answered - 1. a) State two characteristics of the following kingdoms: (i) Kingdom Protoctista ii. Kingdom Animalia iii. Kingdom Plantae (6 marks) (b) i. Define the term ions. (2 marks) ii. Give four (4) differences between temperature and heat. (4 marks) (d) Explain the following with examples: i. First class lever ii. Second class lever iii. Third class lever (6 marks) 2. a) i. Define ionic bond and give two examples. (3 marks) ii. Write four (4) differences between mass and weight. (4 marks) (b) Write the IUPAC name for each of the following compounds: (i) Ca(OH)2 (ii) ZnCO3 (iii) MnO2-4 (iv) H2SO4 (v) SO4²- (vi) Fe(OH)2 (6 marks) (c) (i) Define concentration of a solution. (3 marks)

📝 Answered - Money that is invested to produce wealth is called Select the best answer from the choices provided. A. stocks B. capital C. monopoly D. tariff

📝 Answered - What percent of 150 is $60?

📝 Answered - Match the following digital tools with their functions for providing multiple means of representation: Desmos Gemini (formerly Bard) Wordle creating interactive graphs and simulations creating word clouds from a text generating summaries or questions from a text

📝 Answered - $2 AgNO _3( aq )+ K _2 SO _4( aq ) \rightarrow 2 KNO _3( aq )+ Ag _2 SO _4(s)$ The spectator ions in the reaction shown are: A. silver ion and sulfate ion. B. potassium ion and nitrate ion. C. silver ion and nitrate ion. D. hydrogen ion and hydroxide ion. E. potassium ion and sulfate ion.

📝 Answered - Hematopoiesis is: A. a broken blood vessel which causes bruising. B. the production of blood cells by yellow marrow in the diaphysis. C. the production of blood cells by red marrow in cancellous bone. D. the production of hemoglobin by red marrow. E. the name for the inorganic salts in the matrix of compact bone.

📝 Answered - (c) Two uniform line charges L1 and L2 of density [tex]$8.854 nC / m$[/tex] each located in space along the plane [tex]$Z =0$[/tex] at [tex]$y =+6$[/tex] and [tex]$y =-6$[/tex] m respectively. At point [tex]$P (0,0,6)$[/tex], determine the: (i) electric field strength due to line 1 ; (ii) electric field strength due to line 2; (iii) total field strength.

📝 Answered - Which is the most sensitive portion of the retina that is responsible for "straight-ahead" vision? A. macula B. aqueous humor C. canal of Schlemm D. pupil