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234927 Questions
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448
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In triangle ABC, we have AB=6, BC=12, and AC=7 calculate cos angle A
In triangle ABC, we have AB=6, BC=12, and AC=7 calculate cos angle A
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Guest
Oct 2, 2021
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206
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A cubic function y has real coefficients, and its zeros are −2, 1 and −5. If x=4, y=−486 satisfies its equation,
A cubic function y has real coefficients, and its zeros are −2, 1 and −5. If x=4, y=−486 satisfies its equation, find the equation of the cubic function in standard form.
Let the leading coefficient be a if
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Guest
Oct 2, 2021
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298
1
Coordinates
What is the circumference of a circle with center at P = (-2,3) and passing through Q = (10,2)? Express your answer in terms of pi.
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Guest
Oct 2, 2021
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247
1
help with coordinates
Find the area of the triangle bounded by the y-axis and the line y - 3x = -2 and 3y + x = 22.
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Guest
Oct 2, 2021
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296
1
Graphing question
Given that the point (9,7) is on the graph of y=f(x), there is one point that must be on the graph of y=f(2x + 1). What is the sum of coordinates of that point?
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Guest
Oct 2, 2021
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292
1
Geometry
The points N, O, P, and Q all lie on the same line segment, in that order, such that the ratio of NO:OP:PQ is equal to 5:2:1. If NQ = 24, find NO.
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Guest
Oct 2, 2021
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372
6
PLEASE HELP
Donatello starts with a marble cube of side length 1. He then slices a pyramid off each corner, so that in the resulting polyhedron, all the edges have the same side length s. Find s.
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Guest
Oct 2, 2021
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284
1
Counting problem
How many distinct odd-digit numbers can be written with the digits 1,2,3, 4, and 5 if no digit may be used more than once?
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Guest
Oct 2, 2021
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197
0
Help with these questions?
(12)
Adam and David are playing a game on a circular board with n spaces. Both players place their chip
at the same starting space. First Adam moves his chip forward five spaces from the starting space, then
David moves his chip forward seven,
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Guest
Oct 2, 2021
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492
3
Please Help
The circles shown continue infinitely and have diameters 16 inches, 8 inches, 4 inches, and so on. The diameter of each circle is half the diameter of the previous circle. What is the number of square inches in the sum of the areas of all circles? Express
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Guest
Oct 2, 2021
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381
1
Perform the Indicated operation
2y-1/y + 2x-1/x
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Guest
Oct 2, 2021
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393
6
Please help on this Geometry question.
A circle, with centre A and radius 3 cm, has two non-parallel tangents that touch the circle at points B and C. The tangets intersect at D(5,8).
i) Given that the area of the kite ABDC is 12 cm^2, calculate the length AD.
ii)Hence, or otherwise,
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Guest
Oct 2, 2021
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358
3
math problem
Alex has an infinite number of coconuts nubmered from 1, 2, 3, ... He colors them either green or red according to a color scheme. If the coconut's number if a multiple of 3, 5, or 7, it is colored red. Otherwise, it si colored green.
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Guest
Oct 2, 2021
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337
1
Base Numbers
If the base 8 decimal 0.30403...8 is equivalent to a/b, where a and b are relatively prime, express 2b - a in base 8.
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Guest
Oct 2, 2021
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446
1
+24
Find the area of YBC over the area of ZYC
In the diagram below, we have XY = 2 * AX = 2 * YB and AZ/ZC = 2/3. Find the area of YBC over the area of ZYC
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genericnamealias
Oct 2, 2021
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286
1
Pls.help
Donerick, Luis and Filip shared some sweets. Donerick received 1/11 of the sweets. Luis received 1/4 of the number of sweets Filip received. When Filip gave away 104 sweets to be shared between Donerick and Luis, they found that all of them had the same
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Guest
Oct 2, 2021
+1
374
1
-13
Help please
A hose that is 100 feet long has an inner diameter of 2 inches. How many cubic feet of water can the hose hold? Express your answer to the nearest whole number.
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ShadowNightWolf
Oct 2, 2021
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377
2
Counting problem
Find the number of two digit numbers which are divisible by 6
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Guest
Oct 2, 2021
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285
1
Counting problem
Find the number of three digit natural numbers which are divisible by 13
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Guest
Oct 2, 2021
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