All Questions

2606

+267

The graph of y=f(x) is shown below in red. Given that f is invertible, find f^{-1}(4).

The graph of y=f(x) is shown below in red. Given that f is invertible, find f^{-1}(4).

(Assume grid lines are spaced 1 read more ..

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WhichWitchIsWhich Nov 13, 2017

1267

+267

The graph of y = h(x) is shown in red below. Compute h(h(7)).

The graph of y = h(x) is shown in red below. Compute h(h(7)).

(Assume grid lines are spaced 1 unit apart.) read more ..

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WhichWitchIsWhich Nov 13, 2017

1342

Algebra 2

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the read more ..

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Guest Nov 13, 2017

730

Extrema

Does the function x^3 have any extrema (absolute max/min, relative max/min)? If so, where would it be?

Also, I wanted to make sure if point of inflection isn't a type of extrema. Only maximum and minimum would be classified as read more ..

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Guest Nov 13, 2017

2957

+912

Which postulate or theorem proves MNQ ≅ PNQ ?

Which postulate or theorem proves △MNQ ≅△ PNQ ?

AAS Congruence Theorem
ASA Congruence Postulate read more ..

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AngelRay Nov 13, 2017

4499

+912

Efren is constructing a line parallel to EF¯¯¯¯¯ through point G.

Efren is constructing a line parallel to EF¯¯¯¯¯ through point G.

What step should be his next step?
read more ..

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AngelRay Nov 13, 2017

+18

1427

+118609

Neat geometry question (repeat)

I just found this old question

https://web2.0calc.com/questions/isosceles-amp-equilateral-triangles-perimeter-and-area
read more ..

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Melody Nov 13, 2017

-1

2773

+912

Parallelogram RSTV is similar to parallelogram WXYZ.

Parallelogram RSTV is similar to parallelogram WXYZ.

What is the scale factor of a dilation from RSTV to WXYZ ?
read more ..

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AngelRay Nov 13, 2017

-1

2765

+912

WKT ∼ NRP

△WKT ∼ △NRP

What is PR ?
read more ..

Gh0sty15 ●

AngelRay Nov 13, 2017

-1

3443

+912

Complete the similarity statement for the two quadrilaterals given.

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AngelRay Nov 13, 2017

-1

900

+912

quadrilateral DXHW ∼ quadrilateral LSCT

quadrilateral DXHW ∼ quadrilateral LSCT

Drag the answers into the boxes to match each part of quadrilateral DXHW with the corresponding part of quadrilateral LSCT.
read more ..

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AngelRay Nov 13, 2017

-1

2430

+912

What is the area of the rectangle shown on the coordinate plane?

What is the area of the rectangle shown on the coordinate plane?

Enter your answer in the box. Do not round at any steps.
read more ..

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AngelRay Nov 13, 2017

-1

2034

+912

Point E is located at (−4, 5) and point F is located at (7, 2) .

Point E is located at (−4, 5) and point F is located at (7, 2) .
What are the coordinates of the point that partitions the directed line segment EF¯¯¯¯¯ in a 6:4 ratio?
read more ..

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AngelRay Nov 13, 2017

-1

2494

+912

Point A is located at (4, 9) and point B is located at (12, −5) .

Point A is located at (4, 9) and point B is located at (12, −5) .
What are the coordinates of the point that partitions the directed line segment AB¯¯¯¯¯ in a 1:3 ratio? read more ..

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AngelRay Nov 13, 2017

1728

+912

The coordinates of the vertices of trapezoid EFGH are E(−8, 8) , F(−4, 12) , G(−4, 0) , and H(−8, 4) .

The coordinates of the vertices of trapezoid EFGH are E(−8, 8) , F(−4, 12) , G(−4, 0) , and H(−8, 4) . The coordinates of the vertices oftrapezoid E′F′G′H′ are E′(−8, 6) , F′(−5, 9) , G′(−5, 0) , read more ..

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AngelRay Nov 13, 2017

5841

+912

What is the sequence of transformations that maps ABC to A′B′C′ ?

What is the sequence of transformations that maps △ABC to △A′B′C′ ?
Select from the drop-down menus to correctly identify each step.

read more ..

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AngelRay Nov 13, 2017

961

Dear smart,

In the diagram, quadrilateral ABCD is inscribed in the circle, arc ADB is a minor arc, and segment AB is parallel to segment DC. Given that arc DC is 30 degrees, arc AD is x^2 + 7x degrees, and arc BC is 60 - 4x degrees, find the measure of arc AEB. read more ..

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HandLoin Nov 13, 2017

2520

+62

In Perfectville

In Perfectville, the streets are all 20 feet wide and the blocks they enclose are all squares of side length 400 feet, as shown. Sarah runs around the block on the 400-foot side of the street, while Sam runs on the opposite read more ..

LOL314jnl ●

LOL314jnl Nov 13, 2017

-1

1201

A number is chosen at random from the set of consecutive natural numbers . What is the probability that the number chosen is a factor of?

A number is chosen at random from the set of consecutive natural numbers . What is the probability that the number chosen is a factor of ? Express your answer as a common fraction.

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Guest Nov 13, 2017

1156

help me please!

When I swing at a nail, I drive it all the way in with probability 1/2. With probability 1/4, I hit it half-way in, and with 1/4 probability I miss it entirely. Hitting it half-way in twice will drive it all of the way in. I'm pretty sure that if I swing read more ..

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Guest Nov 13, 2017

Nov 12, 2017

734

PLEASE help

A leading medical journal claims that 39% of young adults play organized sports. A physician wants to conduct a survey to verify this with her young adult patients and wants to do so with a margin of error (ME) of ±5%. What minimum sample size, rounded read more ..

mag762 Nov 12, 2017

2507

+618

In triangle $ABC$, we have that $E$ and $F$ are midpoints of sides $\overline{AC}$ and $\overline{AB}$, respectively. The area of $\triangle

In triangle $ABC$, we have that $E$ and $F$ are midpoints of sides $\overline{AC}$ and $\overline{AB}$, respectively. The area of $\triangle ABC$ is 24 square units. How many square units are in the area of $\triangle CEF$?

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michaelcai Nov 12, 2017

559

using (x,y) to (-x, y), followed by (x , y) to (x , y - 6)

What single transformation would show the image of pentagon ABCDE in the same quadrant as the image after pentagon ABCDE is transformed using (x,y) to (-x, y), followed by (x , y) to (x , y - 6)
A(-3,4), B(-5,4), C(-5,2) D(-3,2), E(-2,3)
a) reflection read more ..

Guest Nov 12, 2017

762

Read and solve now please

Thereis x. If you add
30/7
to it, from the sum you get subtract read more ..

hectictar ●●●●

Guest Nov 12, 2017

788

question?

if 11/25 = 4/5, what is 5/5? I tried to do it and can't. please help.

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Guest Nov 12, 2017

All Questions ⁺⁰230659 Questions

The graph of y=f(x) is shown below in red. Given that f is invertible, find f^{-1}(4).

The graph of y = h(x) is shown in red below. Compute h(h(7)).

Algebra 2

Extrema

Which postulate or theorem proves MNQ ≅ PNQ ?

Efren is constructing a line parallel to EF¯¯¯¯¯ through point G.

Neat geometry question (repeat)

Parallelogram RSTV is similar to parallelogram WXYZ.

WKT ∼ NRP

Complete the similarity statement for the two quadrilaterals given.

quadrilateral DXHW ∼ quadrilateral LSCT

What is the area of the rectangle shown on the coordinate plane?

Point E is located at (−4, 5) and point F is located at (7, 2) .

Point A is located at (4, 9) and point B is located at (12, −5) .

The coordinates of the vertices of trapezoid EFGH are E(−8, 8) , F(−4, 12) , G(−4, 0) , and H(−8, 4) .

What is the sequence of transformations that maps ABC to A′B′C′ ?

Dear smart,

In Perfectville

A number is chosen at random from the set of consecutive natural numbers . What is the probability that the number chosen is a factor of?

help me please!

PLEASE help

In triangle $ABC$, we have that $E$ and $F$ are midpoints of sides $\overline{AC}$ and $\overline{AB}$, respectively. The area of $\triangle

using (x,y) to (-x, y), followed by (x , y) to (x , y - 6)

Read and solve now please

question?

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