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230715 Questions
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489
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Precalculus Question Using Trig to Find Side Length
In quadrilateral ABCD, we have ∠A = ∠C = 90◦ , ∠BDA = 2∠BDC, AB = 6, and AD = 8. Find the length of BC. (Diagram Below)
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Guest
Dec 2, 2020
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370
2
help
what is 3 1/3 divided by 4
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Guest
Dec 2, 2020
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756
2
Im taking a test.
John flew a kite. He started flying the kite at 2:20 pm and ended at 3:14 pm. How many minutes did John fly a kite?
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Guest
Dec 2, 2020
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309
1
Triangle ABC
Triangle ABC with vertices A(-2, 0), B(1, 4) and C(-5, 8) is reflected over the y-axis to form triangle A'B'C'. What is the length of a segment drawn from C to C'?
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Guest
Dec 2, 2020
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331
1
run
If a cheeth can run 60 mile how many hours is that
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Guest
Dec 2, 2020
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1047
3
+466
If $g(x)=\sqrt[3]{\frac{x+3}{4}}$, for what value of $x$ will $g(2x)=2(g(x))$? Express your answer in simplest form.
please help
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dududsu2
Dec 2, 2020
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444
1
Both circles are one unit circles. Regions A, B, and C have equal areas. Find the distance between M and N.
Both circles are one unit circles. Regions A, B, and C have equal areas. Find the distance between M and N.
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Guest
Dec 2, 2020
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416
1
Hard question pls help answer and explanation
Find the largest value of $x$ for which \[x^2 + y^2 = x + y\]has a solution, if $x$ and $y$ are real.
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Guest
Dec 2, 2020
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637
2
Right triangle ABC has legs measuring 8 cm and 15 cm.
Right triangle ABC has legs measuring 8 cm and 15 cm. The triangle is rotated about its hypotenuse. What is the number of cubic centimeters in the volume of the resulting solid? Express your answer in terms of π.
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Guest
Dec 2, 2020
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432
1
two lines
Two lines l and m intersect at O at an angle of 38˚. Let A be a point inside the acute angle formed by l and m. Let B and C be the reflections of A over lines l and m, respectively. Find the number of degrees in angle BAC.
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Guest
Dec 2, 2020
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543
3
+6
Why is e ln2 ^(4/3) /e = 2 (4/3) /e?
Why is eln2^(4/3)/e = 2(4/3)/e?
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en8535
Dec 2, 2020
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426
1
John draws a regular five pointed star in the sand
John draws a regular five pointed star in the sand, and at each of the 5 outward-pointing points and 5 inward-pointing points he places one of ten different sea shells. How many ways can he place the shells, if rotations (but not reflections) of an arrangement
read more ..
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Guest
Dec 2, 2020
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450
2
In the diagram, 4ABC ∼ 4ACD. If AD = 12 and DB = 15, what is AC?
Hi I nned help on this. If you could help that would be great.Its a hw question and i need it by tmrw.! I really apprecaite it.
In the diagram, 4ABC ∼ 4ACD. If AD = 12 and DB = 15, what is AC?
read more ..
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Guest
Dec 2, 2020
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613
2
How many apples are in the bag if there are a total of 9 peices of fruit?
How many apples are in the bag if there are a total of 9 peices of fruit?
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Guest
Dec 2, 2020
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915
1
Our school's girls volleyball team has 14 players
Our school's girls volleyball team has 14 players, including a set of 3 triplets: Missy, Lauren, and Liz. In how many ways can we choose 5 starters if the only restriction is that not all 3 triplets can be in the starting lineup?
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Guest
Dec 2, 2020
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707
1
The equation describes the height (in feet) of a ball thrown upwards at 22 feet per second from 44 feet above the ground. Find the time (in
The equation describes the height (in feet) of a ball thrown upwards at 22 feet per second from 44 feet above the ground. Find the time (in seconds) when the ball will hit the ground. Express your answer as a common fraction.
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Guest
Dec 2, 2020
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499
1
In how many distinct ways can I arrange my five keys on a keychain
In how many distinct ways can I arrange my five keys on a keychain, if I want to put my house key next to my car key and my shed key? Two arrangements are not considered different if the keys are in the same order (or can be made to be in the same order
read more ..
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Guest
Dec 2, 2020
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498
2
The equation describes the height (in meters) of a ball tossed up in the air at 42 meters per second from a height of 18.9 meters from the
The equation describes the height (in meters) of a ball tossed up in the air at 42 meters per second from a height of 18.9 meters from the ground, as a function of time in seconds. In how many seconds will the ball hit the ground?
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Guest
Dec 2, 2020
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501
1
Two sides of a (non-degenerate) triangle
Two sides of a (non-degenerate) triangle are 21 and 27. How many possible lengths are there for the third side, if it is a positive integer?
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Guest
Dec 2, 2020
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544
1
Suppose that is an operation defined by . What is ?
Suppose that is an operation defined by . What is ?
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Guest
Dec 2, 2020
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409
1
How many values of x
How many values of x with 0 degrees <= x <= 2500 degrees satisfy sin x = -0.31?
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Guest
Dec 2, 2020
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333
1
Sorry I was confused from my last posts replies, pls give clear answer and explanation
Find the minimum value of \[2x^2 + 2xy + y^2 - 2x + 2y + 4\]over all real numbers $x$ and $y.$
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Guest
Dec 2, 2020
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284
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3d geo
ABCD is a regular tetrahedron (right triangular pyramid) with side length 1. If M is the midpoint of line CD, then what is the area of triangle ABM?
Guest
Dec 2, 2020
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