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Suppose that x is directly proportional to y. Let x1,x2 be two values of x such that x1/x2=4. Let their corresponding y values be y1,y2, respectively. If at least one of y1,y2 is nonzero, find y2/y1.

geno3141 ●

Guest Mar 19, 2020

-3

794

Geometry Help - Thanks!

Let $A = (4,-1)$, $B = (6,2)$, and $C = (-1,2)$. There exists a point $X$ and a constant $k$ such that for any point $P$, \[PA^2 + PB^2 + PC^2 = 3PX^2 + k.\]Find the constant $k$.

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Guest Mar 19, 2020

884

In CDE , DE=15 , CE=7 , and m∠E=38. What is the length of ⎯⎯⎯⎯⎯

In △CDE , DE=15 , CE=7 , and m∠E=38°. What is the length of ⎯⎯⎯⎯⎯
read more ..

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Guest Mar 19, 2020

1706

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A guy wire is a cable used to restrain objects from moving. They are used to support towers or poles. A guy wire is attached to a cell tower. The 45-foot long guy wire is attached to a tower such that the angle formed by the ground and the wire measures read more ..

ElectricPavlov ●

Guest Mar 19, 2020

1711

In CDE , CD=14 , DE=9 , and m∠E=71∘ .What is m∠D to the nearest tenth of a degree?

In △CDE , CD=14 , DE=9 , and m∠E=71° .What is m∠D to the nearest tenth of a degree?

m∠D=__°?

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Guest Mar 19, 2020

507

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1. The edge length of a regular octahedron is 1. what is the distance between two oppposite faces,

2.ABCDFGHI is a unit cube. All the centers of the faces are connected to form another regular polyhedron. what is this new regular read more ..

Guest Mar 19, 2020

Mar 18, 2020

849

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1.the sum of all edges of a rectangular prism is 60. The surface area of the prism is 160. The volume of the prism is 120. if each dimension of the rectangular prism increases by 2, what is the volume of the new prism.

2.Let ABCD read more ..

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Guest Mar 18, 2020

-1

651

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I am confused

I don't understand why my question got flagged.

off-topic

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qwertyzz Mar 18, 2020

660

Super Hard Ellipse Problem Help Plz!

I've literally tried to approach this problem so many ways but still can't seem to solve it.

The graph of an equation is an ellipse. What is the distance between its foci?

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Guest Mar 18, 2020

834

Right ABC has its right angle at C, BC=4 , and AC=8 .

Right △ABC has its right angle at C, BC=4 , and AC=8 .
What is the value of the trigonometric ratio?

SinA = ? read more ..

ElectricPavlov ●●●●

Guest Mar 18, 2020

-1

663

+980

please help as soon as possible

please help

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qwertyzz Mar 18, 2020

-1

681

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Why did my question get flagged?

off-topic

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qwertyzz Mar 18, 2020

554

ANYBODY PLZ hELP ASAP

here's the link:
https://web2.0calc.com/questions/need-help-plz_9

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Guest Mar 18, 2020

1984

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two parallel chords in a circle have lengths 10 and 14, and the distance between them is 6. The chord parallel to these chords and midway between them is of
length sqrt(a). Find the value of a.

read more ..

heureka ●●●●●●

Guest Mar 18, 2020

810

NEED HELP ASAP PLZ

The interior angles of a pentagon form an arithmetic sequence. The difference between the largest angle and smallest angle is 44 degrees. Find the smallest angle, in degrees.

inomath ●

Guest Mar 18, 2020

604

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Suppose that we have an equation $y=ax^2+bx+c$ whose graph is a parabola with vertex $(3,2)$, vertical axis of symmetry, and contains the point $(1,0)$. What is $(a, b, c)$?

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Guest Mar 18, 2020

598

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Ben is 4 times as old as Izzy and is also 6 years older than Izzy. How old is Izzy

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Guest Mar 18, 2020

597

Help CPHILL

For how many positive integer values of $x$ is $x^{-1}>x$?

Note- You can give me the direct answer instead of the explanation

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Guest Mar 18, 2020

-1

451

+980

Please I need help it is urgent

https://web2.0calc.com/questions/please-help-fast_15

qwertyzz Mar 18, 2020

494

please help now

Suppose that x is directly proportional to y. Let x1,x2 be two values of x such that x1/x2=4. Let their corresponding y values be y1,y2, respectively. If at least one of y1,y2 is nonzero, find y2/y1.

Guest Mar 18, 2020

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PLEASE HELP NOW

Geometry Help - Thanks!

In CDE , DE=15 , CE=7 , and m∠E=38. What is the length of ⎯⎯⎯⎯⎯

Please help!!

In CDE , CD=14 , DE=9 , and m∠E=71∘ .What is m∠D to the nearest tenth of a degree?

help

help

I am confused

Super Hard Ellipse Problem Help Plz!

Right ABC has its right angle at C, BC=4 , and AC=8 .

please help as soon as possible

Why did my question get flagged?

ANYBODY PLZ hELP ASAP

please help

NEED HELP ASAP PLZ

Help

help

Help CPHILL

Please I need help it is urgent

please help now

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