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  • Question #d989d - Socratic
    cosA=8 17 >"using the "color (blue)"trigonometric identity" •color (white) (x)sin^2x+cos^2x=1 rArrcosx=+-sqrt (1-sin^2x) "since "cotA>0" and "sinA>0 "then A is in the first quadrant where cos is positive" cosA=sqrt (1- (15 17)^2) color (white) (cosA)=sqrt (1-225 289)=sqrt (64 289)=8 17
  • Question #300ae - Socratic
    Angle between two vectors should be 180°, 0° and 90° respectively Magnitude of resultant vector is calculated by the formula R = sqrt(A^2 + B^2 + 2AB*cos θ) 1) R = 1m 1 = sqrt(3^2 + 4^2 + (2xx3xx4xxcos θ) cos θ = -1 θ = 180° Angle between vector A and B should be 180° 2) R = 7m 7 = sqrt(3^2 + 4^2 + (2xx3xx4xxcostheta) costheta = 1 θ = 0° Angle between vector A and B should be 0° 3
  • Question #07106 - Socratic
    The answer should look like this once you take the limit of course you can disregard the zero:
  • Question #af56d - Socratic
    Quite a lot of conditions would be required Note: This answer is just my thought and what I currently know First, know that transpiration is the loss of water vapour through evaporation in the plant Some factors that affect this can be temperature, humidity, type of plant, wind and air movement, etc In this case, higher temperature and lower humidity will increase the rate of transpiration
  • Question #dabb2 - Socratic
    The slope-intercept form of a linear equation is: #y = color (red) (m)x + color (blue) (b)#
  • Maggie says, The positive square root of a number is always . . . - Socratic
    No Counter example: color (white) ("XXXXXX")sqrt (1 4) = 1 2 but 1 2 is not less than the original number, 1 4 However, since I like Maggie, I will concede that her statement is true for all numbers greater than 1
  • Question #9a016 - Socratic
    Two solutions, P_1=pi 4+pin, where n in \\mathbb {Z} P_2=tan^-1(3)+pin, where n in \\mathbb {Z} tan(P)=4-3cot(P) tan(P)+3cot(P)=4 We have cot(P)=1 tan(P) tan(P)+3 tan
  • What are the mean and standard deviation of a binomial . . . - Socratic
    What are the mean and standard deviation of a binomial probability distribution with n = 21 and p = 4 17?
  • How do you simplify (x + 3) (y - 4)? | Socratic
    To multiply these two terms you multiply each individual term in the left parenthesis by each individual term in the right parenthesis (x +3)(y − 4) becomes: (x ×y) −(x ×4) + (3 × y) − (3 ×4) xy −4x + 3y − 12





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