All Questions ⁺⁰237827 Questions

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Derivitive for a formula

I need the derivitive of ((∑xi)/n)= λ

Guest Nov 3, 2022

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235

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counting question

In the array below, in how many different ways can we start with the letter A and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?

A
RRR read more ..

Guest Nov 3, 2022

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239

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need help plz

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are 100 dogs in the school.
* 62 have blue ribbons, 65 have read more ..

Guest Nov 3, 2022

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190

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help geometry

In triangle ABC, M is the midpoint of AB. Let D be the point on BC such that AD bisects BAC and let the perpendicular bisector of AB intersect AD at E If AB=44, AC=30 and ME=10 then find the area of triangle BMD.

Guest Nov 3, 2022

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247

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If the domain of the function, f, is restricted to x ≥ 0, which function is the inverse of f?

f(x)=9x^2 - 12 . x≥0
A.h(x)= sqrt-12/3
B.g(x)=sqrt x+12/3
C.g(x)=sqrtx+12/9 read more ..

Guest Nov 3, 2022

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217

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Geometry

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 Nov 3, 2022

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201

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Algebra

Let F(x) be the real-valued function defined for all real x except for x = 1 and x = 2 and satisfying the functional equation
F(x) + F((2x - 3)/x) = x.
Find the function F(x) satisfying these conditions. Write F(x) as read more ..

Guest Nov 3, 2022

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244

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Evaluate the following.

a) |5| - 7 =
b) |5 - 7| =

Guest Nov 3, 2022

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257

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Guys, i want you to know

that every math problem was solved by trial and error.

Guest Nov 3, 2022

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188

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Equation

Solve for x: (3x + 12)(x + 4) = (4x^2 + 8x + 8x^2)/(2x).

Guest Nov 3, 2022

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181

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math

How many integers n can be used such that the quantity |2n^2 + 3n + 11 - n^2 + 9n| results in a prime number?

Guest Nov 3, 2022

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232

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quadratic

a, b, and c are constants such that the quadratic ax^2 + bx + c can be expressed in the form 2(x-4)^2 + 8. When the quadratic 3ax^2 + 2bx + c(for the same values of a, b, and c) is expressed in the form n(x-h)^2 + k, what is h?

Guest Nov 3, 2022

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220

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help geometry

Let AB be a diameter of a circle, and let C be a point on the circle such that AC=8 and BC=4 The angle bisector of ACB intersects the circle at point M Find CM.

Guest Nov 3, 2022

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244

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need help fast

If I give my brother 5 dollars, then we will have the same amount of money. If instead, he gives me 14 dollars, then I'll have three times as much money as he will have. How much money does my brother currently have (in dollars)?

Guest Nov 3, 2022

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239

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+5

How many zeros?

does anyone know how many zeroes is in the answer to the question 10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x10x read more ..

Plshelpmydyingtoilet Nov 3, 2022

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273

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Please help Melody and CPhill

Triangle ABC is a right triangle with angle BAC= 90 degrees and angle B > angle . Suppose AP is an altitude of the triangle, AQ is an angle bisector of the triangle, and AR is a median of the triangle, and angle PAQ = 13 degrees. If P read more ..

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Guest Nov 3, 2022

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how many ways are there to order 2 math books, 3 science books, and 2 history books on a bookshelf? Books of the same subject are indistingu

how many ways are there to order 2 math books, 3 science books, and 2 history books on a bookshelf? Books of the same subject are indistinguishable from each other

Guest Nov 3, 2022

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234

2

PLS HELP ASAP

In Toronto, the price of a new bungalow in1968 was $25 000. In 2004, the price of this bungalow had increased to $400 000. What was the percent increase in price?

Guest Nov 3, 2022

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244

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Percent

The table shows the percent of families in Mathville that have 0, 1, 2, 3 and 4 or more children. If there are a total of 10,250 families, how many are there with no children?

Number of children 0 1 2 3 4+ read more ..

Guest Nov 3, 2022

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223

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quadratic

The equation y = -16t^2 - 60t + 54 describes the height (in feet) of a ball thrown downward at 60 feet per second from a height of 54 feet from the ground, where t represents time, measured in seconds. In how many seconds will the ball reach a read more ..

Guest Nov 3, 2022

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227

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Please Help

On Friday night, Janyia ate pizza for dinner and had ½ of the pizza left over. On Saturday, she ate ¼ of what was left. How much pizza did Janyia eat on that Saturday?

Guest Nov 3, 2022

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228

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help plz

Let a and b be the roots of the quadratic 2x^2 - 8x + 7 = x^2 - 14x + 1. Compute a^3 + b^3.

Guest Nov 3, 2022

Nov 2, 2022

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253

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gcd

What is the greatest common divisor of 121^2 + 233^2 + 345^2 and 120^2 + 237^2 + 348^2?

Guest Nov 2, 2022

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