All Questions ⁺⁰237771 Questions

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919

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help

Find angle a + angle b + angle c + angle e.

Guest Dec 27, 2019

-1

872

2

+152

Help again srry

1)This circle passes through the points (-1, 2),(3,0) and (9,0). The center of the circle is at (h, k). What is the value of h+k?
2)The values of a function f(x) are given below:
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BIGChungus Dec 27, 2019

-1

832

2

+152

Help

The graph of y=ax^2+bx+c is given below, where a, b, and c are integers. Find a-b+c

BIGChungus Dec 27, 2019

-2

875

1

+152

Help

If $f(x)=\dfrac{2}{x+1}$, then what is the value of $f^{-1}\left(\frac{1}{5}\right)$?

BIGChungus Dec 27, 2019

+1

1072

10

+2864

Some Advice for Course Selection

Going to highschool next year, and I have a choice between:

AP Computer Science
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off-topic

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CalculatorUser Dec 27, 2019

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1431

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+24

Help! Thank you.

1. Simplify $\frac{3}{\sqrt[5]{16}}+\frac{1}{\sqrt{3}}$ and rationalize the denominator. The result can be expressed in the form $\frac{a^2\sqrt[5]{b}+b\sqrt{a}}{ab}$, where $a$ and $b$ are integers. What is the value of the sum $a+b$?

Elen8 Dec 27, 2019

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745

3

Rolling Dice!

5 fair 6-sided dice are rolled. What is the probability of obtaining 2 ones and the sum of the remaining three = 10? Thank you for help.

Guest Dec 27, 2019

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844

1

geo help

In the given figure, ABCD is a parallelogram. If the area of the parallelogram is 156 sq cm, find the length of AL.

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Guest Dec 27, 2019

Dec 26, 2019

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716

1

help

Find the number of positive real numbers x such that

Guest Dec 26, 2019

0

502

0

help

Find the six digit number ABCDEF such that ABCDEF = (ABC)^2 + (DEF)^2.

Guest Dec 26, 2019

-1

473

0

help

In trapezoid ABCD, base AD is twice as long as BC. E is the midpoint of leg AB, and F is a point on leg CD. Ray EF intersects ray AD in G, and AD = DG. Find the ratio CF:FD.

Guest Dec 26, 2019

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491

0

help

In the diagram, line l passes through the centroid of triangle ABC.

If the perpendicular distance between A and line l is 2, and the perpendicular distance between B and line l is 6, then what is the perpendicular read more ..

Guest Dec 26, 2019

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501

1

help

Which of the numbers 222^{555}, 333^{444}, 444^{333}, 555^{222} is largest?

Guest Dec 26, 2019

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2640

2

Help please

How many ways can you write two different letters, so that they are in alphabetical order? For example, AB and CT count, but ZA does not.

Guest Dec 26, 2019

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595

1

help

Let x, y, z be integers such that x^2 + y^2 + z^2 = 18 and xy + yz + zx = 9. Find |x| + |y| + |z|.

Guest Dec 26, 2019

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484

1

help

Guest Dec 26, 2019

0

863

8

help pls

A unit square is drawn. Then an equilateral triangle is constructed on each side of the unit square, and the four new points of the diagram are joined to form a larger square. Find the area of the larger square.

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Guest Dec 26, 2019

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1349

2

+312

TRIGONOMETRY

In right triangle ABC, we have angle BAC = 90 degrees and D is on AC such that BD bisects ABC. If AB = 12 and BC = 15, then what is the cosine of angle BDC?

mathleteig Dec 26, 2019

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749

1

help

In the diagram, AB = BC = AC - 1. If the radius of the inscribed triangle is 3/2, then find the area of the triangle.

Guest Dec 26, 2019

0

810

2

help

Find the area of the colored region.

Guest Dec 26, 2019

0

692

1

help

If sec 4A = csc (A - 20), where 4A is acute, then find A.

Guest Dec 26, 2019

0

730

1

математика

12 га это сколько

Guest Dec 26, 2019

0

522

2

help

x + x + y = 14
L + L + z = 20
x + y + z = 12
x + z + L = 18 read more ..

Guest Dec 26, 2019

+1

9

1201

2

geometry

What is the radius of the small, red circle?

Guest Dec 26, 2019

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