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quadratic

The quadratic -6x^2+72x+216 can be written in the form a(x+b)^2+c, where a, b, and c are constants. What is a+b+c?

Guest 1 hour ago

help geometry

In triangle ABC, point D divides side AC so that AD : DC = 1 : 2. Let E be the midpoint of BD and let F be the point of intersection of line BC and line AE. Given that the area of ΔADE is 360 cm2, what is the area of ΔEBF?

Guest 1 hour ago

help geometry

In triangle ABC, AC = BC, angle DCB is 44 degrees, and CD is parallel to AB. What is the number of degrees in angle ECD?

Guest 1 hour ago

bỏ dấu ngoặc rồi tính

bỏ dấu ngoặc rồi tính: a)17/11-(6/5-16/11)+25/5
b)39/5+(9/4-9/5)-(5/4+6/7)

Guest 2 hours ago

help coordinates

In terms of pi, what is the area of the circle defined by the equation 2x^2+2y^2+10x-6y-18=x^2+y^2+5x-y?

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Guest 3 hours ago

Help!

In quadrilateral BCED, we have BD = 11, BC = 9, and CE=2. Sides BD and CE are extended past B and C, respectively, to meet at point A. If AC = 28 and AB = 24, then what is DE?
Can someone go through the steps for me? Don't say the answer so I can figure read more ..

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awhoo 3 hours ago

Inequality

Find all x that satisfy the inequality (2x+10)(x+3)<(3x+9)(x-8). Express your answer in interval notation.

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Guest 4 hours ago

+280

what is the formula for the volume of a cone

$$state \ the \ fundamental \ theorem \ of \ calculus \ and \ find \ the \ x \ values \ for \ x^4 + x^3 + x^2 + 2x + 1$$

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hipie 5 hours ago

Jun 26, 2022

help probability

A point (x,y) is randomly selected such that 0 <= x <= 3 and 0 <= y <= 6. What is the probability that x + y <= 5? Express your answer as a common fraction.

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Guest 6 hours ago

system

If w, x, y, and z are real numbers satisfying:
w+x+y = -2,
w+x+z = 4,
w+y+z = 19 read more ..

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Guest 6 hours ago

digits

Find the last three digits of 101^{202}

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Guest 6 hours ago

What is the area of this figure?

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Guest 7 hours ago

What is the area of this figure?

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Guest 7 hours ago

probability

A bag has 4 red marbles, 5 white marbles, 6 blue marbles, and 7 green marbles. Three marbles are drawn from the bag (without replacement). What is the probability that they are all the same color?

Guest 7 hours ago

Probability

Three marbles are randomly selected, without replacement, from a bag containing two red, three blue and four green marbles. What is the probability that one marble of each color is selected? Express your answer as a common fraction.

Guest 9 hours ago

Exponents

If 3^(x + y) = 81 and 81^(x - y) = 9,then what is the value of the product xy? Express your answer as a common fraction.

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Guest 10 hours ago

Counting

How many numbers can be expressed as the sum of two or more distinct elements of the set {0,1,2,...,16}? For example, one possible number is 2 + 10 + 12 + 15.

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Guest 10 hours ago

Math

I'm thinking of two numbers. One number is 8 times as big as the other. The difference between the two numbers is 28. What is the sum of the two numbers?

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Guest 11 hours ago

circles

In the circle below, AB is parallel to CD, AD is a diameter of the circle, and AD = 36.What is the length of AB?

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Guest Jun 26, 2022, 5:36:58 PM

help coordinates

If a is the x-intercept, b is the y-intercept, and m is the slope of the line with equation x/4 + y/18 = 1, then what is the value of a + b + m?

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Guest Jun 26, 2022, 5:34:28 PM

can you solve?

Find constants A and B such that (2x - 17)/(x^2 - x - 2) = A/(x - 2) + B/(x + 1) for all x such that x neq -1 and x \neq 2. Give your answer as the ordered pair (A,B).

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Guest Jun 26, 2022, 5:30:40 PM

help plz

For how many real values of x is sqrt(120 - sqrt(x^2)) an integer?

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Guest Jun 26, 2022, 5:22:55 PM

hard algebra

If $g(x)=\sqrt[3]{\frac{x+3}{4}}$, for what value of x will g(2x)=g(x)? Express your answer in simplest form.

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Guest Jun 26, 2022, 5:22:11 PM

Algebra

Find all values of a that satisfy the equation a/3 + 1 = a + 3.

Guest Jun 26, 2022, 5:18:14 PM

help counting

A committee of 4 is to be chosen from a group of students. If the number of students in the group increases by 1, the number of different committees triples. How many students are in the group?

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Guest Jun 26, 2022, 5:17:34 PM

triangle problem

In right triangle ABC with angle B = 90 degrees, we have sin A = cos A. What is tan A?

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Guest Jun 26, 2022, 5:15:31 PM

PLS HALPAROOOO

Find the number of ordered pairs $(a,b)$ of integers such that \[\frac{a + 2}{a + 5} = \frac{b}{3}.\]

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Guest Jun 26, 2022, 5:12:44 PM

All Questions ⁺⁰213052 Questions

quadratic

help geometry

help geometry

bỏ dấu ngoặc rồi tính

help coordinates

Help!

Inequality

what is the formula for the volume of a cone

help probability

system

digits

What is the area of this figure?

What is the area of this figure?

probability

Probability

Exponents

Counting

Math

circles

help coordinates

can you solve?

help plz

hard algebra

Algebra

help counting

triangle problem

PLS HALPAROOOO

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