Default Avatar

tomv

tomv

About

Username
tomv
Joined
Visits
0
Last Active
Roles
Member

Comments

  • 8:15 to 1:45 = 13:45 - 8:15 = 5:30 hours 2:15 to 4:59 = 4:59 - 2:15 = 2:44 hours Total = 5:30 + 2:44 = 7:74 = 8:14 = 8 hours 14 minutes or 8 1/4 hour rounded to the nearest 1/4 hour.
  • Convert the radical to it's equivalent decimal number and do the division. If the value under the radical is not a perfect square, it's an irrational number and it will be much more convenient to use a calculator than to manually extract the square …
  • By the chain rule: dcos(u)/dx = -sin(u)du/dx If u = xy, by the product rule, du/dx = ydx/dx + xdy/dx = y + xdy/dx dcos(xy)/dx = -sin(xy)(y + xdy/dx) = -(y+xy')sin(xy) By the same process, chain rule combined with product rule: d/dx √u …
  • There is uncovered area 4 feet on each side of the rug or a total of 8 feet in the direction of the length and 3 feet on each side or a total of 6 feet in the direction of the width of the room. Length of the room, L = x+8 Width of the room, W =…
  • There is uncovered area 4 feet on each side of the rug or a total of 8 feet in the direction of the length and 3 feet on each side or a total of 6 feet in the direction of the width of the room. Length of the room, L = x+8 Width of the room, W =…
  • e^(1+lnx) = (e^1)(e^lnx) = ex
  • x = bottom from the house = 8cos70° ≈ 2.7 m y = top from ground = 8sin70° ≈ 7.5 m
    in Math Problem? Comment by tomv June 2021
  • (cos x+cot x)sec x=1 +cosec x (cosx + cosx/sinx)/cosx = 1 + 1/sinx cosx + cosx/sinx = cosx + cosx/sinx 0 = 0 QED
  • 1/f = 1/a + 1/b Multiply both sides by abf ab = bf + af divide both sides by a+b f = ab/(a+b)
  • 1/f = 1/a + 1/b Multiply both sides by abf ab = bf + af divide both sides by a+b f = ab/(a+b)
  • Depends on what you want to do with it. sin(135-30) - cos(135)sin(30) = sin(105) - cos(135)sin(30) = 0.96593 - (-0.70711)(.5) = 0.61237
  • If the angle of depression from you to the grizzly is 52°, the angle of elevation from the grizzly to you is also 52°. Using the definition of tan(Θ) = y/x where y = 125 and you are trying to calculate x: x = 125/tan52° = 97.66 ft (Guide4u has…
  • If the angle of depression from you to the grizzly is 52°, the angle of elevation from the grizzly to you is also 52°. Using the definition of tan(Θ) = y/x where y = 125 and you are trying to calculate x: x = 125/tan52° = 97.66 ft (Guide4u has…
  • A = invested at 4% B = invested at 5% .04A + .05B = 228 A + B = 5000 .04A + .05(5000-A) = 228 (.04 - .05)A = 228 - .05(5000) A = (250-228)/.01 = 2200 B = 5000 - 2200 = 2800 Check: .04*2200 + .05*2800 = 228 228 = 228
  • A = invested at 4% B = invested at 5% .04A + .05B = 228 A + B = 5000 .04A + .05(5000-A) = 228 (.04 - .05)A = 228 - .05(5000) A = (250-228)/.01 = 2200 B = 5000 - 2200 = 2800 Check: .04*2200 + .05*2800 = 228 228 = 228
  • x = tables with 4 chairs y = tables with 2 chairs Number of tables: x + y = 25 → y = 25-x Number of chairs: 4x+2y = 86 → 4x + 2(25-x) = 86 4x - 2x = 86-50 2x = 36 x = 18 18 tables have 4 chairs
  • a+b=34 a-b=10 2a +b-b = 44 2a = 44 a = 22 b = 34-22 = 12 The two numbers, 22 and 12
  • Em primeiro lugar, procure um profissional qualificado para realmente saber se possui depressão, pode ser psicólogo. Eles irão te orientar e direcionar para o melhor tratamento, que pode ser com ou sem a utilização de medicamentos.
  • Oh, it makes plenty of sense. They are giving you two points on a line, (x, p) = (37, 40) and (52, 25) and they want you to write the equation of the line. p - 40 = (25-40)(x-37)/(52-37) p = 40 - (15/15)(x-37) p = 40 - x + 37 The line in s…
  • Oh, it makes plenty of sense. They are giving you two points on a line, (x, p) = (37, 40) and (52, 25) and they want you to write the equation of the line. p - 40 = (25-40)(x-37)/(52-37) p = 40 - (15/15)(x-37) p = 40 - x + 37 The line in s…
  • Oh, it makes plenty of sense. They are giving you two points on a line, (x, p) = (37, 40) and (52, 25) and they want you to write the equation of the line. p - 40 = (25-40)(x-37)/(52-37) p = 40 - (15/15)(x-37) p = 40 - x + 37 The line in s…
  • Oh, it makes plenty of sense. They are giving you two points on a line, (x, p) = (37, 40) and (52, 25) and they want you to write the equation of the line. p - 40 = (25-40)(x-37)/(52-37) p = 40 - (15/15)(x-37) p = 40 - x + 37 The line in s…
  • Em primeiro lugar, procure um profissional qualificado para realmente saber se possui depressão, pode ser psicólogo. Eles irão te orientar e direcionar para o melhor tratamento, que pode ser com ou sem a utilização de medicamentos.
  • a+b=34 a-b=10 2a +b-b = 44 2a = 44 a = 22 b = 34-22 = 12 The two numbers, 22 and 12
  • x = tables with 4 chairs y = tables with 2 chairs Number of tables: x + y = 25 → y = 25-x Number of chairs: 4x+2y = 86 → 4x + 2(25-x) = 86 4x - 2x = 86-50 2x = 36 x = 18 18 tables have 4 chairs
  • A = invested at 4% B = invested at 5% .04A + .05B = 228 A + B = 5000 .04A + .05(5000-A) = 228 (.04 - .05)A = 228 - .05(5000) A = (250-228)/.01 = 2200 B = 5000 - 2200 = 2800 Check: .04*2200 + .05*2800 = 228 228 = 228
  • If the angle of depression from you to the grizzly is 52°, the angle of elevation from the grizzly to you is also 52°. Using the definition of tan(Θ) = y/x where y = 125 and you are trying to calculate x: x = 125/tan52° = 97.66 ft (Guide4u has…
  • If the angle of depression from you to the grizzly is 52°, the angle of elevation from the grizzly to you is also 52°. Using the definition of tan(Θ) = y/x where y = 125 and you are trying to calculate x: x = 125/tan52° = 97.66 ft (Guide4u has…
  • Depends on what you want to do with it. sin(135-30) - cos(135)sin(30) = sin(105) - cos(135)sin(30) = 0.96593 - (-0.70711)(.5) = 0.61237
  • Depends on what you want to do with it. sin(135-30) - cos(135)sin(30) = sin(105) - cos(135)sin(30) = 0.96593 - (-0.70711)(.5) = 0.61237