All Questions ⁺⁰236337 Questions

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193

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Quadratic

There are two pairs (x,y) of real numbers that satisfy the equation x+y = 3xy = 3. Given that the solutions x are in the form $x = \frac{a \pm b\sqrt{c}}{d}$ where a, b, c, and d are positive integers and the expression is completely read more ..

Guest Apr 10, 2022

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244

1

Coordinates

Find the equation whose graph is the line passing through the points (2,-3) and (4,5) Enter your answer in standard form Ax+By=C

Guest Apr 10, 2022

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309

2

Simplify:

Simplify: x = 7!/6!

Guest Apr 10, 2022

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319

1

math

The distance from earth to thesun is 93,000,000mi. Calculate the distance from earth to the sun in kilometers.

please help and show work thank you

Guest Apr 10, 2022

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284

1

Algebra question

Simplify: $\frac{1}{\sqrt{2}+\frac{1}{\sqrt{8}+\sqrt{200}+\frac{1}{\sqrt{2}}}}$.

Guest Apr 10, 2022

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309

1

Algebra

Find all possible values of a, if the equations ax^2+5x+1=4x^2+7x-4 has two different real roots

Guest Apr 10, 2022

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256

1

Algebra

Real numbers a and b satisfy the equations 3^a=81^{b+2} and 125^b=5^{a + 3}. What is ab?

Guest Apr 10, 2022

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332

5

Helppp

How do you do sin(18deg) without a calculator?

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Guest Apr 10, 2022

Apr 9, 2022

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178

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Quadratic

Given that the absolute value of the difference of the two roots of ax^2 + 5x - 3 = 0 is 3, and a is positive, what is the value of a?

Guest Apr 9, 2022

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259

1

Number Theory

Let n be a positive integer and let k be the number of positive integers less than 2^n that are invertible modulo 2^n. If 2^n = 8 (mod 13), then what is the remainder when k is divided by 13?

Guest Apr 9, 2022

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246

1

Domain

Find the greatest integer value of b for which the expression (9x^3+4x^2+11x+7)/(x^2+bx+88) has a domain of all real numbers.

Guest Apr 9, 2022

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184

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Coordinates

Let P be a point on the graph of equation, (x-94)^2 + (y-24)^2 = 54^2. What is the shortest possible distance between P and the x-axis?

Guest Apr 9, 2022

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180

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Geometry

In a circle, the length of an arc intercepted by a central angle is 12mm, and the radius of the circle is 8mm. What is the measure, in radians, of the angle?

Guest Apr 9, 2022

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208

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Algebra

How many roots, real or complex, does the polynomial 7 + 5x^4 - 3x^2 + 8x^6 have in all?

Guest Apr 9, 2022

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287

1

System

Suppose a, b, c, and d are real numbers which satisfy the system of equations
a + 2b + 3c + 4d = 10
4a + b + 2c + 3d = 4
3a + 4b + c + 2d = -10 read more ..

Guest Apr 9, 2022

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200

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Algebra

If sqrt(6y + 2)/sqrt(2y + 2) = 5/2, solve for y. Express your answer in simplest fractional form.

Guest Apr 9, 2022

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255

1

help sequence

The product of the first and the third terms of an arithmetic sequence is 9. If all terms of the sequence are positive integers, what is the fourth term?

Guest Apr 9, 2022

-1

246

1

Impossible!!

Five children A, B, C, D, and E are fighting over who broke the precious vase. Here are their statements:

A: D broke it.
D: A lied when he said I broke it. read more ..

Guest Apr 9, 2022

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247

1

Primes

What prime is 4 greater than a perfect square and less than the next perfect square?

Guest Apr 9, 2022

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311

3

Help Hard Question!

Five children A, B, C, D, and E are fighting over who broke the precious vase. Here are their statements:

A: D broke it.
D: A lied when he said I broke it. read more ..

Guest Apr 9, 2022

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246

2

help plssss

How many solutions are there to the equation
|x| = -1/2 x + 4?

Guest Apr 9, 2022

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163

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Geometry

ABC and DEF are right triangles, and AF and DC are their respective altitudes. Point G is the intersection of AC and DF and GH is drawn from it such that it is perpendicular to BC. If AF = 6 and GH = 4 and FC = 8, what is the area of polygon read more ..

Guest Apr 9, 2022

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190

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i hate math

14 trucks for every 16 cars

Guest Apr 9, 2022

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243

1

HELp

Daniel measured the circumference of his front bicycle tire to be about 1.12 m. If the tire made 718 revolutions during a 5 minute trip, what was his average speed in m/s? Round your answer to the nearest hundredth

Guest Apr 9, 2022

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