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Find the points on the curve y=x^3 at which the normal has a gradient of -3/4?
Question posted by PhiBonacci 3+ months ago | 1 answers | 
| Open
Related topics: curve, point, figure, gradient, step, question, normal
PhiBonacci's answer: "normal" in this context means "perpendicular to". If the normal q has a gradient (slope) m of -3/4, then the slope m_t of the tangent t is the negative reciprocal of m_q: m_t = - (m_q)^-1 = 4/3. The slope of the tangent t of a ...
What is the probability that the card drawn is red?
Question posted by PhiBonacci 3+ months ago | 3 answers | | Open
Related topics: red, card, probability
PhiBonacci's answer: If there are r red cards in a pack of n cards, then the probability P to pick a red one is P = r/n.
How many ounces?
Question posted by PhiBonacci 3+ months ago | 2 answers | | Open
Related topics: solution
PhiBonacci's answer: 2) batman can clean the area in 8hr working alone. Robin would take 12 hr. if robin starts at 8 am and batman joins him at 10 am, at what time will they finish? A = area Batman cleans (1/8)A in 1 hour. Robin cleans (1/12)A in 1 hour. LCM (8, 12) = ...
How do I create a spatial assignment?
Question posted by PhiBonacci 3+ months ago | 2 answers | | Open
Related topics: art, project, assignment
PhiBonacci's comment: Why would it be weird to ask? The "spatial assignment" assignment is weird.
What is the conic form of the quadratic equation f(x)=2x^2+4x+12. *?
Question posted by PhiBonacci 3+ months ago | 2 answers | | Open
Related topics: form, equations
PhiBonacci's answer: Conic sections are also known as quadratic relations because the equations which describe them are second order and not always functions. The four basic conic sections are circle, ellipse, parabola, and hyperbola. Differentiate between quadratic ...
Anyone know what some weird wooden thing we found is? it says "the (maybe) ouive 1882"?
Question posted by PhiBonacci 3+ months ago | 1 answers | | Open
Related topics: symbol, picture, weird, found, down, wooden, rows
PhiBonacci's comment: That's cute. Now we know where the "picture"-file is located in the file system of your computer.
What percent of a sample of I-131 (half-life = 8.0 days) will remain after 48 days?
Question posted by PhiBonacci 3+ months ago | 1 answers | | Open
Related topics: life, days, day
PhiBonacci's answer: 1 / 2^(48/8) = 1 / 2^6 = 1 / 64 = 1 / 0.015625 = 1,5625%
Can you please convert y+2=-(x+1) (In point slope form to slope intercept form and standard form)?
Question posted by PhiBonacci 3+ months ago | 2 answers | | Open
Related topics: point, form, standard, slope
PhiBonacci's answer: y + 2 = -(x + 1) y = -x - 1 - 2 y = -x - 3 ;; slope intercept form x + y + 3 = 0 ;; standard form
A computer store buys a computer system at a cost of $465.60. The selling price was at first $776 t?
Question posted by PhiBonacci 3+ months ago | 1 answers | | Open
Related topics: computer, first, price, store, system, selling, cost, computers
PhiBonacci's answer: The selling price was at first $776 but then the store advertised a 30% markdown on the system. Find the current sale price? $776 - (30% of $776) = $ x :: current sale price 776 - 776 * 0.3 = x 776 * (1 - 0.3) = x 776 * 0.7 = 543.20 Current ...
So I just broke up with my ex last night. He would hit me, force me to text him in class, tell me...
Question posted by PhiBonacci 3+ months ago | 3 answers | | Open
Related topics: family, night, friend, force, text, isolated, broke, wear, car, friends, cars
PhiBonacci's response: This control freak felt entitled to keep you on a leash. What does this tell you about him respecting you? "He would hit me", "my dad’s friend saw him hit me recently", "he used to hit me out of anger"; You were ...
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