Chip

This page lists questions and answers that were posted by visitors named Chip.

Questions

The following questions were asked by visitors named Chip.

A train pulls away from a station with a constant acceleration of 0.44 m/s2. A passenger arrives at a point next to the track 6.2 s after the end of the train has passed the very same point. What is the slowest constant speed at which she can run and stil...

If all the vertices of a triangle are on the circle and one side of the triangle is the diameter of the circle it is a right angle. Find the length of the diameter (AC) if Ab =8 and BC = 15.

what number is 66 2/3% of 81?

Sara has some fish, 2 birds, and 5 hamsters. She has 6 fewer hamsters than fish. How many fish does she have?

The endpoints of a diameter of a circle are A(2,1) and B(5,5. Find the area of the circle in terms of pi.

what is 2 1/3 plus 1 3/4? ......................................

Answers

The following answers were posted by visitors named Chip.

(10 choose 4)*(14 choose 4) The general formula for n choose k is (n!)/(k!*(n-k)!).

A cube with volume 216 has sides of length 6cm. The volume of a pyramid is (1/3)*A*h (where A is the area of the base and h is the height of the pyramid). Therefore, the volume is (1/3)*6*6*6 = 72 cm^3 (answer C).

A round pool implies the pool is a cylinder. The volume of a cylinder is: V = (pi)*r^2*h where r is radius and h is height. Rearranging the formula, you get: h = V/(pi*r^2) V = 48.2 and r = 3.2, so h = 1.5 feet.

a. Vf^2 = Vi^2 + 2*a*d solve for Vi given Vf = 0 (speed at max height is 0), a = -9.81 m/s^2 and d = 3m. b. Once you know Vi, you can use Vf = a*t + Vi and solve for t. (once again, Vf = 0 since you're only considering the path of the ball from the top of...

The difference of cubes formula is: x^3 − y^3 = (x − y)*(x^2 + xy + y^2) Your x is x in this case and y = 8 (2^3). So you get: x^3 - 2^3 = (x - 2)*(x^2 + 2x + 4).

This can also be solved by doing: x-y = 88 min x*y. x = 88+y, so you get minimize x^2+88x, which can be done with calculus.

The slope between two points is: slope = (y2 - y1)/(x2 - x1) (0.6,0.5) = (x1,y1) and (0.2,-0.3) = (x2,y2). Plug in and solve for the slope.

Frequency = (speed)/(wavelength) However! The speed of a wave is constant for a given medium (ex. air, water). Therefore doubling frequency halves the wavelength, but keeps speed constant.

Same concept as for this question: "Doubling the frequency of a wave source doubles the speed of the waves"

I'm assuming you're trying to say "if p, then not q". For this, the table should go like this: P Q ~Q P => ~Q T T F F T F T T F T F T F F T T

The spacing got messed up... The first column is for P Second is for Q Third is for ~Q and the last is for P => ~Q

Total is 100%, so assuming x is the fraction of Cu-63, (1-x) is the fraction of Cu-65. Atomic weight is the (weighted) average of all isotopes. Therefore you have: x*62.93 + (1-x)*64.93 = 63.55 x = 0.69. So you have 69% Cu-63 and 31% Cu-65.

y = x^2 + 9x y = x*(x+9) at y = 0, x*(x+9)=0 This is only possible when x = 0 or -9.

how do u simpify 13

then i add that?

What do you mean Ms. Sue?

Did the math. The gal you get 18oz per dollar and boxes you get 14oz per dollar.

have a nice day :heart: answer are correct. I'm 100%