All Questions ⁺⁰237827 Questions

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Help! Circumradius of a Triangle

Find the circumradius of triangle ABC with sides of 29, 29, and 40.

Guest Oct 15, 2022

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help

Consider the system of equations
Multiply the first equation by some constant, so that in the resulting equation, the coefficient of matches the coefficient of in the second equation.
Enter the entire equation that results from read more ..

Guest Oct 15, 2022

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272

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Algebra

The expression x^2 + 15x + 54 can be written as (x + a)(x + b), and the expression x^2 - 17x + 72 written as (x - b)(x - c), where a, b, and c are integers. What is the value of a+b+c?

Guest Oct 15, 2022

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Domain

Suppose a function f(x) is defined on the domain [-8,4] . If we define a new function g(x) by g(x) = f(2x^2 + 1), then what is the domain of g(x)? Express your answer in interval notation.

Guest Oct 15, 2022

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geometry

A point X lies in the interior of rectangle ABCD . If AX=11 cm, BX=9 cm and CX=9 cm, what is DX ? Express your answer in simplest radical.

Guest Oct 15, 2022

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number theory

How many positive integers N from 1 to 5000 satisfy the congruence N = 11 (mod 131)?

Guest Oct 15, 2022

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algebra

Let a and b be the roots of the quadratic 2x^2 - 8x + 7 = x^2 - 6x + 1. Compute a^3 + b^3.

Guest Oct 15, 2022

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coordinates

The graph of x^2 - 2x + y^2 = 24 is a circle. Find the center and radius of this circle.

Guest Oct 15, 2022

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triangles

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

Guest Oct 15, 2022

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Algebra

Consider the two expressions (6x^3 + 9x^2 + 4x + 7 - 17x^2 - 8x + 8)/(2x + 3 - 7x - 11) and 4x^2 - 7 + 1/(2x + 3 - 7x - 11)
a) Show that the two expressions represent equal numbers when x = 10
b) Explain why these two expressions do not represent read more ..

Guest Oct 15, 2022

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Algebra

Let's take a look at (x + y)^2 (x - y)^2 and (x^2 + y^2)(x^2 - y^2). While Beeker believes that these two expressions are equal for all real numbers x and y Clod believes they are not! Let's get to the bottom of this!
a) Evaluate (x + y)^2 (x - read more ..

Guest Oct 15, 2022

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help function

If f is a function satisfying f(x)+xf(1-x) = 1+x^2 for all real x, then f(2) may be written in the form -p/q for relativley prime positive integers p and q. Find p+q.

Guest Oct 15, 2022

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GEOMETRY ANGLE THEORMS

In the diagram at the right, find the measure, in degrees, of angle c. A ) 64 B) 39 C) 74 D ) 92 E ) 56

Guest Oct 15, 2022

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+16

How do you calculate the area of the shaded region?

How do you calculate the area of the shaded region?

KomptDerWinter Oct 15, 2022

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Math

Anna had four times as much money as Grace initially. After each of them spent their money on a similiar bag each, Grace had $108 lesser than Anna. How much money did Anna have at first?

Guest Oct 15, 2022

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Возведите одночлен (2b6m4)3 в куб

Возведи одночлен (2b6m4)3 в куб

Guest Oct 15, 2022

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quadratic

Find the quadratic whose roots are 7 and 4.
x^2 + __x + __

Guest Oct 15, 2022

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Algebra

Fill in the blank to make the equation true.
8/125*__ = 5/2.

Guest Oct 15, 2022

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complex numbers

Express (4-5i)(-5-5i) in the form a+bi , where a and b are integers and i^2=-1.

Guest Oct 15, 2022

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counting

In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color and there must be at least 2 red squares. How many ways are there to color the five squares?

Guest Oct 15, 2022

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algebra

Let u and v be the solutions to 3x^2 + 5x + 7 = -2x^2 - 7x + 1. Find u/v +v/u.

Guest Oct 15, 2022

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precalc

Calculate
\[ \arccos \sqrt{\cfrac{1-\sqrt{\cfrac{1-\sqrt{\cfrac{1-\sqrt{\cfrac{1+\cfrac{\sqrt{3}}{2}}{2}}}{2}}}{2}}}{2}}.\]
As usual, the output of an inverse trig function should be in radians.

Guest Oct 15, 2022

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Function Question (Help me!)

The graph of $y = f(x)$ is shown below.

For each point $(a,b)$ that is on the graph of $y = f(x),$ the point $\left( 3a - 1, \frac{b}{2} \right)$ is plotted, forming read more ..

Guest Oct 15, 2022

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Algebra

Solve for y if 9^y = 3*6*27*4/(81*2)

Guest Oct 15, 2022

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