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Chip
Questions (10)
what is 2 1/3 plus 1 3/4?
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7 answers
311 views
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.
2 answers
2,090 views
Sara has some fish, 2 birds, and 5 hamsters. She has 6 fewer hamsters than fish.
How many fish does she have?
2 answers
2,114 views
what number is 66 2/3% of 81?
1 answer
481 views
In a Joule experiment, a mass of 1.00 kg falls through a height of 50.0 m and rotates a paddle wheel that stirs 0.600 kg of
0 answers
398 views
A cylinder with a piston contains 0.3 kg of water at 100 degrees C. What is the change in internal energy of the water when it
0 answers
684 views
A flow calorimeter is used to measure the specific heat of a liquid. Heat is added at a known rate to a stream of the liquid as
0 answers
636 views
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
2 answers
565 views
The nine Ring Wraiths want to fly from Barad-Dur to Rivendell. Rivendell is directly north of Barad-Dur. The Dark Tower reports
1 answer
1,477 views
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
3 answers
2,949 views
Answers (19)
have a nice day :heart: answer are correct. I'm 100%
Did the math. The gal you get 18oz per dollar and boxes you get 14oz per dollar.
What do you mean Ms. Sue?
then i add that?
how do u simpify 13
y = x^2 + 9x y = x*(x+9) at y = 0, x*(x+9)=0 This is only possible when x = 0 or -9.
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.
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
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
Same concept as for this question: "Doubling the frequency of a wave source doubles the speed of the waves"
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.
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.
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
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.
-44 and 44.
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).
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 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).
(10 choose 4)*(14 choose 4) The general formula for n choose k is (n!)/(k!*(n-k)!).
