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  • Question #80b00 - Socratic
    Measure of angle LhatOM = 48^0 7x-92+6x+12=180 1) Combine like terms 7x - 92 + 6x + 12 =180 13x - 80= 180 2) Add color (blue) (80) to both sides (13x) - cancel80 color (blue) (+ cancel80) = 180 color (blue) (+ 80) = 260 3) Divide both sides by 13 cancel (13x)^color (red)x cancel13 = cancel (260)^color (red)20 cancel13 4) Plug x= 20 into the expression 7 (20 ) - 92 = 140 - 92 = 48 5
  • Question #43205 - Socratic
    Z = 7 E = 7 N = 13 The atomic number Z is the same as the proton number, so we know that nitrogen must by definition have 7 protons If it is an atom, and not an ion, then it must have Z = E, protons equals electrons, so it must also have 7 electrons for no overall charge The mass number is given by A = Z + N, protons plus neutrons, so we can say that N = A - Z, neutrons is mass minus protons
  • Question #50451 - Socratic
    Interest for second bill was $7 96 If I have interpreted you information correctly: No interest was imposed until after the transaction in which he paid off $20 from his original transaction and made a further purchase to the value of $18 So beyond this point the total to be paid off was $400-$20+$18 = $398 Interest owing from this point was 2% " of " $398 00 2 100 xx$398 = $7 96
  • What does x equal? e^ {7x} lt;20 - Socratic
    Explanation: e7x <20 Apply natural logarithm, lne7x <ln20 Therefore, 7x <ln20 Divide both sides by 7, x <ln20 7 Answer link
  • Question #19497 - Socratic
    x-y=color (red)7 It seems to me the easiest way to find (x-y) is to find x and y then do the subtraction: Given [1]color (white) ("XXX")3x+7y=1 [2]color (white) ("XXX")x-7y=19 Adding [1] and [2] [3]color (white) ("XXX")4x=20 Dividing [3] by 4 [4]color (white) ("XXX")x=5 Substituting (from [4]) 5 for x in [2] [5]color (white) ("XXX")5-7y=19
  • Differential of function A (x) is 150x-7. If A (x)=20, when x=0, for . . .
    The lowest price of the stock is 19 8367 As differential of A (x) is 150x-7 and it is zero at x=7 150, where we have a minima (not only as second derivative is positive but also as coefficient of x^2 is positive and hence parabola opens up and hence a minima)
  • Question #1e1cd - Socratic
    21 24 and 20 24 You must find the common denominator of the two fractions The common denominator is 24 Eight goes into 24 three times, so you multiply the top and bottom by three You then get 7 8 * 3 3 = 21 24 You then see that 6 goes into 24 four times You multiply the top and bottom by 4 and get 5 6 * 4 4 = 20 24
  • Question #0afa3 - Socratic
    From (6), (7) and (8), we have, S : y=-2x^2+20x-42 rArr y+42=-2x^2+20x=-2 (x^2-10x), =-2 (ul (x^2-10x+25)-25), =-2 (x^2-10x+25)+50=-2 (x-5)^2+50 rArr S : y+42-50=-2 (x-5)^2, or, S : y-8=-2 (x-5)^2, from which we conclude that, (5,8) is the desired vertex!
  • Question #35046 - Socratic
    Explanation: first distribute #3# to the inside equation then subtract #13 8# with #-6 9# then divide by #3#
  • Answers created by Morgan S. - Socratic
    Nick has $7 00 Bagels cost $0 75 each and a small container of cream cheese costs $1 29 how many bagels can Nick buy?





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