All Questions ⁺⁰231313 Questions

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Find the length of wire

a solid copper sphere of radius 3cm is melted and electric wire of diameter 0.4cm is made out of the copper obtained. find the length of wire?

Guest Dec 5, 2017

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help

ladiikeiii Dec 5, 2017

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hello

im so boreeeed i finished all my math homework....

off-topic

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Donut Dec 5, 2017

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help with this

The shaded areas of the figure may be found by subtracting the area of the unshaded portion from the total area of the figure. Use this approach to find the area of the shaded portion.
A rectangle contains two equally sized cut-outs of triangles. read more ..

ladiikeiii Dec 5, 2017

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776

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help

A hotel is in the shape of a cylinder, with a circular foundation. The circumference of the foundation is
2 times the radius, increased by 273.92 ft. Find the radius of the circular foundation. Use 3.14 as an approximation for piπ.
read more ..

ladiikeiii Dec 5, 2017

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866

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On a photograph of a triangular piece of land, help

On a photograph of a triangular piece of land, the lengths of the three sides are 3 cm, 7 cm, and 8 cm, respectively. The shortest side of the actual piece of land is 120m long. Find the lengths of the other two sides.

The length read more ..

ladiikeiii Dec 5, 2017

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3247

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+394

help with this

Use the diagram to find the measure of exterior angle BCD.
Triangle A B C has angles labeled as follows: A, (18x + 12) degrees; B, 6x degrees; C, unlabeled. Point C lies on Ray A D. The outside angle B C D is labeled (27x - 3) degrees.
left read more ..

ladiikeiii Dec 5, 2017

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784

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Algebra Help

a) Suppose . Does $f$ have an inverse? If so, find $f^{-1}(20)$.

b) Suppose . Does $g$ have an inverse? If so, find $g^{-1}(25)$
read more ..

michaelcai Dec 5, 2017

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7522

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A median of a triangle

A median of a triangle is a line segment from a vertex of a triangle to the midpoint of the opposite side of the triangle. Below, the three medians of the black triangle are shown in red.

https://latex.artofproblemsolving.com/1/5/5/15593c90ce20b22893a1bd76ac6d5f6e3b61f5bb.png read more ..

Guest Dec 5, 2017

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12792

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Algebra Help

a) Suppose the domain of $f$ is $(-1,1)$. Define the function $g$ by What is the domain of $g$?

b) Suppose the domain of $f$ is $(-1,1)$. Define the function $h$ by What is the domain of $h$?
read more ..

hectictar ●●

michaelcai Dec 5, 2017

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Please help

The two lines $y = 4x - 19$ and $2x+y = 95$ intersect. What is the value of $x$ at the point of intersection?

Guest Dec 5, 2017

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Some functions that aren't invertible can be made invertible by restricting their domains. For example, the function $x^2$ is invertible if

Some functions that aren't invertible can be made invertible by restricting their domains. For example, the function $x^2$ is invertible if we restrict $x$ to the interval $[0,\infty)$, or to any subset of that interval. In that case, the inverse function read more ..

michaelcai Dec 5, 2017

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3896

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The function $$f(x) = \frac{cx}{2x+3}$$satisfies $f(f(x))=x$ for all real numbers $x\ne -\frac 32$. Find $c$.

The functionsatisfies $f(f(x))=x$ for all real numbers . Find $c$.

michaelcai Dec 5, 2017

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3965

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Triangle $ABC$ is inscribed in equilateral triangle $PQR$, as shown. If $PC = 3$, $BP = CQ = 2$, and $\angle ACB = 90^\circ$, then compute $

Triangle $ABC$ is inscribed in equilateral triangle $PQR$, as shown. If $PC = 3$, $BP = CQ = 2$, and $\angle ACB = 90^\circ$, then compute $AQ$.

read more ..

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michaelcai Dec 5, 2017

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2450

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$\overline{BC}$ is a chord of a circle with center $O$ and area $48\pi$. Point $A$ is inside $\triangle BCO$ such

$\overline{BC}$ is a chord of a circle with center $O$ and area $48\pi$. Point $A$ is inside $\triangle BCO$ such that $\triangle ABC$ is equilateral and $A$ is the circumcenter of $\triangle BCO$. What is the area of triangle $ABC$?

michaelcai Dec 5, 2017

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In the figure, $ABCD$ is a square of side length 1, and $M$ and $N$ are the midpoints of sides $\overline{AB}$ and $\overline{CD}$, respecti

In the figure, $ABCD$ is a square of side length 1, and $M$ and $N$ are the midpoints of sides $\overline{AB}$ and $\overline{CD}$, respectively. Find the area of the shaded region.
read more ..

michaelcai Dec 5, 2017

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I need help

what is Pi cubed? round to nearest 100th.

Donut Dec 5, 2017

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812

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Does anyone know how to do Algebra?

Does anyone know how to do Algebra? I need help learning how to do it and I just want someone that will walk me through it but let me answer the questions on my own!!

AngelRay Dec 5, 2017

Dec 4, 2017

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628

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my cat

my cat just died an i think i am going to end it all JK but my cat just died and i am sad pls help me.

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Guest Dec 4, 2017

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Help.

Help.

Explain the octet rule and give an example of how it is used.

NotSoSmart Dec 4, 2017

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728

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help me please

help me please
Perform the Operations indicated

y2+2y / x2 + 2xy +y2 Divided by y2-4 / x+y read more ..

ManuelBautista2019 Dec 4, 2017

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820

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Scientific Notation

in 2000 the population of Pennysylvanıa was 12,281,054. Round this figure to the nearest hundred thousand. Then write that number in scientific notation.

help plz

Guest Dec 4, 2017

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716

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+1495

help me, please

help me, please
perform the operations indicated

y2+2y/x2 + 2xy +y2 Divided by y2 - 4 / x+y read more ..

ManuelBautista2019 Dec 4, 2017

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