Answer Happy

1. Leave no spaces between mathematical operators. For example, the line 2x + Sy =10 should be typed in as "2x+5y=10. 2. Do not begin your solution with an equal sign. For example, the answer to the question "The sum of 2 and 5 is" should be typed in as "7", and not "=7". 3. The "A" (caret) symbol should be used to indicate exponents. For example, y = 5% would be entered as "y-5^x." 4. In the case of an expression use brackets. For example, y = (2x + 772 should be typed "y=(2x+7)^2" 5. No vector symbols are needed in your answers. For example 2ū+ 3V would be typed as "2u+3v". 6. Other common symbols include: 0 The "+" (division) symbol, which should be typed as "/" (backslash). For 3 example would be typed as "x/(x-3)". Be sure to frame the 2-3 numerator and denominator with brackets as necessary. The "x" (multiplication or cross product) symbol, which should be typed as "*" (asterisk). For example <<u+ 5v would be typed as "u"5v". The "V" (square root) symbol, which should be typed as "root". For example y = √³+2 would be typed as "root(x^3+2)". . The "TT" (pi) symbol, which should be typed as "pi". For example -711 would be typed as "-7pi". Question 1 (1 point) If a=(3, 2, 9) and 5=(-4, 7, 2), find a. 5. Oa)ā.5=-9 Ob) 5.5=19 Ocā.5-20 Od)ā.5-12
Question 2 (1 point) For which of the following conditions will the dot product of two vectors be zero? O a) The angle between them is 90°. Ob) The angle between them is 0. Oc) The angle between them is 180° Od) The vectors have the same magnitude. Question 3 (1 point) If a = 12 cm, 15-13 cm, and the angle between them when placed tail to tail is 35°, find a 5 a) 5.5-57 Ob)ā 5-128 Oc)ā.5-11 Od) 5.5=24 Question 4 (1 point). The dot product represents: O a) The magnitude of the projection of one vector onto another. Ob) A vector perpendicular to both given vectors. Oc) A vector parallel to both given vectors. d) The division of one vector by another.