algebra
Multiply both sides by 4: a. 32--7x-3 -24+8x = 0 x + 32-27 = 0 X = -5.
math
Octagon = 360o/8angles = 45o/angle, Hexagon = 360o/6angles = 60o/angle. 60 - 45 = 15o Increase.
slope help
Given:Slope = 3. P(2,4)? Y = mx + b = 4 3*2 + b = 4 b = -2 Eq: Y = 3x - 2 Use the same procedure for the remaining problems.
precalculus
See previous post.
Science
1. Density = 8g/4cm^3 = 2g/cm^3.
precalculus
9x^2 + 36y^2 = 64 When Y = 0, 9x^2 = 64 x^2 = 64/9 X = +- 8/3 = x-intercepts. When X = 0, 36y^2 = 64 y^2 = 64/36 Y = +- 8/6 = +-4/3 = y-intercepts. Major Axis = 8/3 - (-8/3)=8/3+8/3= 16/3 Minor Axis = 4/3 - (-4/3) = 8/3. NOTE: The major axis has the largest intercept.
Math
See previous post.
Math
a. Se previous post. b. 850(1.02)^t = 1700. Solve for t.
Math
P = Po(1+r)^t = 1000. 850(1.02)^t = 1000 (1.02)^t = 1000/850 = 1.17647 Take Log of both sides: t*Log 1.02 = Log 1.17647 0.0086t = 0.07058 t = 8.2 Years
physics
Range = Vo^2*2sinA*cosA/g = Vo*cosA*T (550)^2*2sinA*cosA/9.8=550cosA*49.2 Divide both sides by 550cosA: 550*2sinA/9.8 = 49.2 56.12*2sinA = 49.2 112.24*sin A = 49.2 sinA = 0.43833 A = 26o. Range = Vo*cos A * T Range = 550*cos26 * 49.2 = 24321 m.
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