All Questions ⁺⁰237827 Questions

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help

Last year at a certain high school, there were 95 boys on the honor roll and 64 girls on the honor roll. This year, the number of boys on the honor roll increased by 20% and the number of girls on the honor roll increased by 25%. By what percentage did read more ..

Guest Oct 26, 2022

+3

286

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+491

I Finished Calculus Today!!

I got a 95.6 A

I'm so happy!!

off-topic

Elijah Oct 26, 2022

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231

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arithmetic sequences

What is the value of y in the arithmetic sequence y + 6, 12, 3y?

Guest Oct 26, 2022

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212

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help plz, anyone plz

Relationship B has a greater rate than Relationship A. This graph represents Relationship A. Which equations could represent Relationship B? Select each correct answer. Responses y=34x y equals fraction numerator 3 over denominator 4 end fraction x y = read more ..

Guest Oct 26, 2022

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201

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probability

Dakota randomly selected three different integers 1 through 8. What is the probability that the three numbers selected could be the sides of a triangle? Express your answer as a common fraction.

Guest Oct 26, 2022

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195

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help probability

Four points W, X , Y, Z are chosen at random on the circumference of a circle. What is the probability that the WX > YZ?

Guest Oct 26, 2022

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204

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9x = -15y - 3

9x = -15y - 3
i need help on how to Rewrite the following equation in slope-intercept form.

Guest Oct 26, 2022

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190

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sequence

A sequence with a_1 = 1 is defined by the recurrence relation a_{n+1} = 2^n + a_n for all natural numbers n. If a_{23} = p, then what is p?

Guest Oct 26, 2022

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194

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system

The ordered pair (x,y) = (8,6) is the solution of the following system of linear equations

x = 10y + a - 5y + 3/2*x
y = 10x + b + 7y - 5 read more ..

Guest Oct 26, 2022

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176

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system

Find the ordered pair (s,t) that satisfies the system
s/2 - 3t = 1 + s
3t - 2s = 3 - 7s + 2t

Guest Oct 26, 2022

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272

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Is there any trick to calculate the standard deviation using a scientific calculator?

Is there any trick to calculate the standard deviation using a scientific calculator?

Guest Oct 26, 2022

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193

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operations on complex numbers

need online calculator for operations on complex numbers

Guest Oct 26, 2022

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180

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algebra

Find all solutions to the system
a + b = 14
a^3 + b^3 = 812 + a^2 + b^2

Guest Oct 26, 2022

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199

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graphing

.Given that (2,-7) is on the graph of y = f(x), find a point that must be on the graph of y = f(x) - f(3) + f((x + 7)/2). Express your answer as an ordered pair (a,b)$where a and b are real numbers.

Guest Oct 26, 2022

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199

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graphing

Given that(-2,3) is on the graph of y=f(x) , find a point that must be on the graph of y=(2f(2x)+1)/3. Express your answer as an ordered pair(a,b) where a and b are real numbers.

Guest Oct 26, 2022

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242

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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 Oct 26, 2022

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190

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need help

Find the sum of 1 + 1/2 + 1/5 + 1/10
The answer should be in the form of a decimal rounded to the nearest HUNDREDTH.

Guest Oct 26, 2022

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232

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Help! Intro to Geometry Question

Trapezoid ABCD has parallel bases AB and CD. Let AD=5 and BC=7, and let P be a point on side CD such that CP/PD=7/5 Let X, Y be the feet of the altitudes from P to AD, BC respectively. Show that PX=PY.

Guest Oct 26, 2022

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271

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+56

Trigonometry: Modeling Sinusoidal Functions

A clock is hung on a wall so that the center is 20 cm below the ceiling. The minute hand is 10 cm long, and the hour hand is 6 cm long.
a.Find a function h(t)that gives the distance the tip of the hour hand is from the ceiling as a function of minutes read more ..

lel12 Oct 26, 2022

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181

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geometry

Two perpendicular chords AB and CD intersect at P. If PA = 4, PB = 10, and CD = 13, calculate the length of P to the center of the circle

Guest Oct 26, 2022

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184

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Complex numbers

Let z = a + bi, where a and b are positive real numbers. If
z^3 - z^2 + z = 0,
then enter the ordered pair (a,b).

Guest Oct 26, 2022

Oct 25, 2022

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234

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function

The function f(\sqrt{x + 1}) = \frac{1}{x+1} satisfies for all x \ge -1, x\neq 0. Find f(2).

Guest Oct 25, 2022

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200

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geometry

Two rectangles overlap, as shown below. Find the area of the overlapping region (which is shaded) if AB = BE = 2 and AD = ED = 4.

read more ..

Guest Oct 25, 2022

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247

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sequences

The sequence a_n has the property that a_n = a_{n-1} + 2a_{n-2} for n >= 2. It is also true that a_0 = 4 and a_3 = 6. What is the value of a_5? Express your answer as a common fraction.

Guest Oct 25, 2022

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198

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help counting

Kurt is creating a bouquet of flowers for his mother. He has a selection of roses, lilies, orchids and violets from which to create a bouquet of a dozen flowers. Kurt's mother loves orchids, so his bouquet will have at least eight orchids. How many read more ..

Guest Oct 25, 2022

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