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Posts by Henry

Total # Posts: 13,458

Physics
M1*V1 + M2*V2 = M1*V + M2*V, 64.8*9.2 + 24.4*0 = 64.8V + 24.4V, 596.16 = 89.2V, V = 6.68 m/s.

Physics
a. My answer: 207.5 J/s = 207.5 W. b. Work = F*d = Mg*d = 2400*9.8 * 1.3 = 30,576 Joules. T = 30,576J. * 1s./207.5J. = 147.4 s.

physics
Incomplete.

Physics
7.90h * 3600s/h = 28,440 s. = 2.84*10^4 s. P = 5.90*10^6/2.84*10^4 = 207.5 J/s. = 207.5 Watts.

Physics
a. 6.28/360o = x/82.9o, x = 82.9 * 6.28/360 = 1.45 Radians. b. 6.28rad/rev * 6revs =

Whats the answer
2-11x^2-8x+6x^2 = -5x^2-8x+2.

electronics
What does Tr and ZT mean?

physics 101
30mi/h * 1600m/mi * 1h/3600s. =

algebra
Sqrt(39sqrt(6-4)) == Sqrt(39sqrt2) = Sqrt(55.15) = 7.43

Algebra
L = Sqrt(x^2+Y^2) = Sqrt(9^2+13^2) = 15.8 Ft.

Math
TanA = 60/91 = 0.65934, A = 33.4o. E. of N.

Math
X => 3, Y = 2.

math help
See your previous post.

Math (Grade 12)
1. Equity = 367,685-108,653. 2. 0.564 * Equity =

Physics
V^2 = Vo^2 + 2a*d, a = (V^2-Vo^2)/2d = (50^2-300^2)/0.08 = -1,093,750 m/s^2. F = M*a = 0.025 * (-1,093,750) =

science
d. 6.67 g/mL.

Phy
See previous post: 3-17-16, 10:58 AM.

Phy
T1 = T2, T1*Cos45 - T2*Cos45 = 0. So, the hor. components cancel. T1*sin45 + T2*sin45 = 20, Replace T2 with T1: T1*sin45 + T1*sin45 = 20, 2T1*sin45 = 20, 1.414T1 = 20, T1 = 14.14 N. = T2.

math
Po = $3,500, T = 3 Years, P = 36 * 104.50 = $3762. Int. = P-Po = 3762 - 3500 = $262. Int. = 3500*r*3 = 262, 10,500r = 262, r = 0.025 = 2.5% = APR.

physics
Correction: Vs = 343 m/s. (343+14)/(343-75) * 1000 = 357/268 * 1000 = 1332 Hz.

physics
Fr = (Vs+Vt)/(Vs-Vc)*Fc = (443+14)/(443-75) * 1000 = 457/368 * 1000 = 1242 Hz. = Freq. heard by the receiver(Truck driver).

Science: Physics
d = 1000N * 1m/500N = 2 m.

Math
12/4 does not = 8/24. 8/4 = 24/12. So, the ans. is B.

physics
KE = 0.5M*V^2.

physics
V^2 = Vo^2 + 2g*h = 0, h = -Vo^2/2g = -80/-19.6 = 4.08 m. = max. ht. 1. PE = M*g*h/2 = 0.1*9.8*(4.08/2) = 2.0 Joules. 2. PE = 0.1*9.8*4.08 = 4.0 Joules. 3. KE = 0.5M*V^2 = 0.5*0.1*80^2 = 320 Joules.

Math
P = 11/12.

algebra
Width = W feet. Length = W+8 Ft. Width = W+4. Length = W+3. A1 = A2, (W+8)*W = (W+3)*(W+4), W^2 + 8W = W^2 + 4W + 3W + 12, W = 12 Ft., W+8 = 20 Ft.

MATH Help!
C = (2/6)n = (1/3)n.

Algebra
(1,1), (1,2) (1,3), (1,4), (1,5), (1,6). So, there 6 possibilities per side. 6poss./side * 6sides = 36 Possibilities.

math
Bought X eggs @ 18 Cents each. Cost = 18x. (x-8)eggs * 24Cents/egg = 24x-192 = Sale price. Profit = Sale Price - Cost = (24x-192) - 18x = 288 Cents, 6x = 480, X = 80.

maths
x/(x+6), (x+1)/(x+4) = 3/4, 4x+4 = 3x+12, X = 8. 8/(8+6 = 8/14 = 4/7.

English
I hear the mournful wail of millions, whose chains, heavy and grievous yesterday, are to-day rendered more intolerable by the jubilant shouts that reach them. Which definition of rendered is most likely suited for this line? Caused to be a certain nature Melted down Repeated ...

English
To forget them, to pass lightly over their wrongs, and to chime in with the popular theme, would be treason most scandalous. . . Which word is most similar to how chime in is used here? Agree Create Harmonize Resound I have no idea because chime in- means to interject, so ...

math
Multiply Eq1 by 3 and Eq2 by -4 and add: 15x - 12y = -21 -12x + 12y = 84 Sum:3x = 63, X = 21. In Eq1, replace x with 21 and solve for y: 15*21 - 12y =-21, 315 - 12y=-21, -12y = -336, Y = 28.

Physics
Vp + 80 = 325km/h[240o] CCW. Vp + 80 = -162.5-281.5i, Vp = -242.5 - 281.5i = 372km/h[49.3o] S. of W.

Physics
Let L = 100 uh. Xl = 6.28*526.5*10^3*100*10^-6 = 330.642 Ohms = Xc. C = 1/6.28*F*Xc = 1/6.28*526.5*10^3*330.642 = 0.00091 uF = 910 pF. at 526.5 kHz Xl = 6.28*1606.5^10^3*100*10^-6 = 1,009.4 Ohms = Xc. C = 1/(6.28*1606.5*10^3*100*10^-6) = 9.9*10^-4 uF = 990 pF. C = 910 pF to ...

Physics
a. d = 50 + 75 + 100 = b. D = 50i + 75[45o] + 100[300o] = 50i + 53+53i + 50-86.6i = 103 - 33.6i = 108.3m[-18.1o] = 18.1o S. of E.

English
I think the answer is, because he is pretty much telling the people reform is needed. AFTER an unequivocal experience of the inefficiency of the subsisting federal government, you are called upon to deliberate on a new Constitution for the United States of America. What does ...

science
Correction: 3. Wavelength.

science
1. Frequency. 2. Friction. 3. Period. 4. Refraction. 5. Reflection or Echo. 6. 7. Decibel.

business math
P = Po + Po*r*t = 10,500 + 10,500*(0.12/360)*90 = 10,815 Pesos.

math
X Qtrs., 2x Dimes, 2x+4 Nickels, 2(2x+4) Pennies. 25x + 10*2x + 5(2x+4) + 2(2x+4) = 913 Cents, 25x + 20x + 10x+20 + 4x+8 = 913, 59x = 913-28 = 885, X = 15 Qtrs., 30 Dimes, 34 Nickels, 68 Pennies.

Math HELP!
Vertical angles.

maths
t = 50/60 * 24min. = 20 Min.

algebra
Ac + Ar = Ay, pi*r^2 + Ar = 6x*7x, 3.14*(2x)^2 + Ar = 42x^2, 12.57x^2 + Ar = 42x^2, Ar = 29.4x^2 = Area remaining.

Math - Help!
Vertical angles.

Math
3cakes/4people = 3/4 cake each.

Math
5/6 = 105/126, 5/7 = 90/126, 8/9 = 112/126.

algebra
1. Yes, Y = 3.5x. 2. No. 4. a^2 + b^2 = c^2. b = 5, c = 15, a = ?. 5. 51 * T = 204. 8. (-5,2), (3,7). L^2 = (3+5)^2 + (7-2)^2 = 89, L = 9.4. 9. (3,-1), (5,-8). m = (-8+1)/(5-3) = 11. (5,2), (x,y), m = 3. m = (y-2)/(x-5) = 3, y-2 = 3(x-5). 12. (-8,2), (x,y), (4,-2). x+8 = 1/2(4...

Physics
D = 3 + 4i = 5km[53.1o]. N. of E.

Physics
Do you mean 20o N. of E. or N. of w. or what do you mean?

Physics
Not Correct: A, C, D.

Math
James: X years old, Phil: 2x " " Peter: (2x-3), x + 2x + (2x-3) = 32 X =?

electrical technology
10 s. = 10,000 mS. x = t/RC, Vr = 9/e^x = 9-8 = 1, e^x = 9, X = 2.197 = 10,000/(R*47), 2.197 =213/R, 2.197R = 213, R = 96.8Kohms. r

English
Sorry I didn't separate them well . . .the theory which he attempts to demonstrate and the wonderful facts which he relates soon changed this feeling into enthusiasm. My father looked carelessly at the title page of my book and said, "Ah! Cornelius Agrippa! My dear ...

English
I thought it was C for this Victor Frankenstein recounts the influences that lead to his great experiment: I feel exquisite pleasure in dwelling on the recollections of childhood, before misfortune had tainted my mind and changed its bright visions of extensive usefulness ...

English
Could I get some check on my answers? Read these lines from Macbeth: The west yet glimmers with some streaks of day: Now spurs the lated traveller apace, To gain the timely inn; and near approaches The subject of our watch. Which of the following correctly describes how the ...

Math
Multiply Eq1 by 3 and Eq2 by 2: 9x - 6y = 15. 10x + 6y = 42. Solve by addition.

Electronics
Even if an amplifier circuit does not have band-pass filters, there is a limit on the band of frequencies that it can pass. The lowest frequency is determined by the value of the coupling capacitors. The highest frequency is limited by any capacitance in parallel with the ...

maths
VAT = 0.05*(52,500+84,000+262,000+672,000+157,000) =

science
L = V/F = 3*10^5/40*10^6 = 0.0075 m.

algebra or algebra1
(20)(x^3y^4)^3 = (20)(x^9y^12) = 20x^9y^12.

algebra or algebra1
F(a) = 2a + 9 = 7, 2a = -2, a = -1.

algebra or algebra1
L = Sqrt(21^2+16^2)

physics
C = pi*D = 3.14 * 67 = 211 cm. = 2.11 m. Speed = 11.2rev/s * 2.11 m/rev = 23.6 m/s.

Calculus
Show that f(x) = 2000x^4 and g(x) = 200x^4 grow at the same rate I know that they grow at the same rate because they are both raised to the same power, but i don't know how to show it.

Math
(5,6), (8,9). m = (9-6)/(8-5) = 1, Y = mx + b = 6, 1*5 + b = 6, b = 1, Y = x + 1. (0,5), (6,3). m = (3-5)/(6-0) = -1/3, Y = mx + b = 5, (-1/3)0 + b = 5, b = 5, Y = (-1/3)x + 5. x + 1 = (-1/3)x + 5, x+1 = -x/3 + 5, x + x/3 = 4, Multiply both sides by 3: 3x + x = 12, X = 3 Min.

Math
1. 1cents = 2^0 = 2^(d-1). 2. 2cents = 2^1 = 2^(d-1) 3. 4cents = 2^2 = 2^(d-1). 15. 2^(d-1) = 2^(15-1) = 2^14 = 16,384 Cents(pennies) = $163.84.

math
1. Take the chicken across. 2. Take the fox across and bring the chicken back. 3. Take the corn across. 4. Take the chicken across.

Calculus
Find the range of the function ∫sqrt(4-t^2) dt where a=0 =x [0, 4π] [0, 2π] [-4, 0] [0, 4]

physics
a. Impulse = 0.224 * 22 = b. V = Vo + a*t = -22, 18 + a*0.06 = -22, 0.06a = -40, a = 667 m/s^2. F = M*a = 0.224* (-667) =

Physics
h = Vo*t + 0.5g*t^2

Physics
Y = 5.07*sin60.2 = 4.40 m/s. d = V*T = 24.7, 4.4*T = 24.7, T = 5.61 s.

physics
a. V^2 = Vo^2 + 2g*h, Vo = 0, g = 9.8 m/s^2, h = 0.54 m., V = ?. b. k = Mg/d = (1.7*9.8)/0.088m =

Algebra
See previous post.

Algebra
See previous post.

Algebra
See previous post: Wed, 3-2-16, 10:20 PM.

Algebra
(-5,3), (4,-5). Y = mx + b, m = (-5-3)/(4-(-5)) = -8/9, Y = (-8/9)(-5) + b = 3, b = 3 - 40/9 = 27/9-40/9 = -13/9. Eq: Y = (-8/9)x - 13/9.

Algebra
Incomplete.

Algebra
a. Y = a(x-h)^2 + k. h = -b/2a = -18/-6 = 3, k = -3*3^2 +18*3 + 53 = 80, Y = -3(x-3)^2 + 80. b. T max = k = 80o F.

Algebra
a. h(t) = 0.5g*t^2. b. h(1) = 16*1^2 = 16 Ft. c. h = 0.5g*t^2. h = 35 Ft., g = 32 Ft/s^2, t = ?.

math
son's age : (x+5) in 5 years. Parent's age: 2(x+5) in 5 years. 50 < ((x+5) + 2(x+5))< 100, 50 < (x+5 + 2x+10) < 100, 50 < 3x+15 < 100, 50-15 < 3x < 100-15, 35 < 3x < 85, 35/3 < x < 85/3. 11 2/3 < X < 28 1/3, 16 2/3 < x+5 <...

Calculus
Determine if the Mean Value Theorem for Integrals applies to the function f(x) = 5 - x^2 on the interval 0 to sqrt 5 . If so, find the x-coordinates of the point(s) guaranteed by the theorem.

math 5th grade
5.29 + (2/3)*3.59 + (4/3)*4.79 = $14.07, Yes. 28.50-(2*3.59)-1.34 = 19.98 = Cost of 4 pks. of glass beads. 19.98/4 = $5.00 = Cost of 1 pk. of glass beads.

Maths
1. W/100 = 8/5, 5W = 800, W = 160g of wheat. 160 + 100 = 260 Grams of muesli. 2. 84/R = 7/3, 7R = 252, R = 36g of raisins. 84 + 36 = 120 grams.

Math
Did you mean? 12a + 15p = 100.

Math
Suzanne: X min. Jim: (x+30)min. X = 1/3 * 60min = 20 min. x+30 = 20 + 30 = 50 min.

Banking Finance
Higher.

Algebra
P = Po(1+r)^n. Po = $3500, r = (6.75%/12)/100% = 0.005625 = Monthly % rate expressed as a decimal. n = 1Comp./mo. * 6mo = 6 Compounding periods. P = ?.

Algebra
P = Po(1+r)^n. Po = $500, r = (4%/4)/100% = 0.01 = Quarterly % rate expressed as a deci8mal. n = 4Comp./yr. * 6yrs = 24 Compounding periods. P = ?.

Algebra
P = Po(1+r)^n. n = 1Comp./yr. * 5yrs = 5 Compounding periods. P = 4000(1.06)^5 =

Math
P = Po(1+r)^n. Po = $850, r = Quarterly % rate expressed as a decimal. n = 4Comp./yr. * 10yrs. = 40 Compounding periods. P = 850(1+r)^40 = 1100, (1+r)^40 = 1100/850 = 1.294, Raise both sides to the 1/40 power: 1+r = 1.294^(1/40) = 1.00647, r = 1.00647 - 1 = 0.00647 = Quarterly...

math
P = Po(1+r)^n. r = Quarterly % rate expressed as a decimal. n = 4Comp./yr. * 2yrs = 8 Compounding periods. P = 3800*(1+r)^8 = 4300, (1+r)^8 = 4300/3800 = 1.132, 8*Log(1+r) = Log1.132, Log(1+r) = Log1.132/8 = 0.00673, 1+r = 10^(0.00673), r = 10^(0.00673) - 1 = 0.0156, APR = 4...

math
P = Po(1+r)^n. r = (2%/2)/100% = 0.01 = Semiannual % rate expressed as a decimal. n = 2Comp./yr. * 2yrs = 4 Compounding peri0ds. P = Po*(1.01)^4 = 12,500. Po = ?.

math
See previous post: Mon, 2-29-16, 2:12 AM.

math
P = Po(1+r)^n. r = (10%/2)/100% = 0.05 = Semiannual % rate expressed as a decimal. n = 2Comp./yr. * 10yrs = 20 Compounding periods. P = 100,000(1.05)^20 = $265,329.77. Repeat the above procedure for 15% and 20%.

math
Cost = 60 + 11.05*11 = $181.55 P = Po + Po*r*t = 181.55, 170 + 170*r*(11/12) = 181.55, 170 + 155.83r = 181.55, 155.83r = 11.55, r = 0.047 = 4.7%, APR.

Algebra 2
49^3x = 343^(x+1), 3x*Log49 = (x+1)*Log343, Divide both sides by Log49: 3x = (x+1)*Log343/Log49, 3x = 1.5*(x+1), 3x = 1.5x + 1.5, 3x-1.5x = 1.5, X = 1. So the 2x in your Eq should be x.

Algebra 2
49^3x = 343^(2x+1). 3x*Log49 = (2x+1)*Log343, Divide both sides by the Log of 49: 3x = (2x+1)*Log343/Log49, 3x = 1.5(2x+1), 3x = 3x+1.5, 3x-3x = 1.5. No solution? Please make sure the problem is copied correctly.

Calculus
The rate at which water flows into a tank, in gallons per hour, is given by a differentiable function R of time t. The table below gives the rate as measured at various times in an 8-hour time period. t---------0-----2------3-------7----8 (hours) R(t)--1.95---2.5---2.8----4.00...

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