All Questions ⁺⁰235546 Questions

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323

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Need help ASAP

Dan earns $42.75 per month working as a tutor. He worked as a tutor for 4 months. He also earned $52.45 walking dogs in the neighborhood. He spent $18.50 of his total earning to buy a movie ticket and candy. Dan put of the remaining money in read more ..

Kakashi Feb 14, 2022

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291

1

Domain

Compute the domain of the real-valued function f(x) = sqrt(3 - sqrt(8 - sqrt(x))).

Guest Feb 14, 2022

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351

3

help algebra

If
(\sqrt{600} + \sqrt{150} + 4\sqrt{24})/(6\sqrt{32} - 3\sqrt{50} - \sqrt{2})*8 = a\sqrt{b},
where a and b are integers and b is as small as possible, find$a+b.

Guest Feb 14, 2022

0

316

2

Rate problem

A cyclist rides 30 km at an average speed of 9 km per hour. At what rate must the cyclist cover in the next 20 km in order to bring the overall average speed up to 10 km per hour?

Guest Feb 14, 2022

0

314

1

polygons

A square tile, a regular hexagon tile, an equilateral triangle tile, and a regular n-sided polygon tile share a common vertex. There are no gaps or overlaps between the tiles. What is n?

Guest Feb 14, 2022

-2

293

2

454654548456434231564846888888888888888888888

454654548456434231564846888888888888888888888

Guest Feb 14, 2022

+26

321

2

+1306

Fractional exponents

dolphinia Feb 14, 2022

0

291

1

plz help

A median of a triangle is a line segment from a vertex of a triangle to the midpoint of the opposite side of the triangle. Below, the three medians of the black triangle are shown in red.

read more ..

Guest Feb 14, 2022

0

295

1

quadratic

There exist constants a, h and k such that
x^2 + 12x + 4 = a(x - h)^2 + k
for all real numbers x. Enter the ordered triple (a,h,k).

Guest Feb 14, 2022

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332

4

Probability

If 4 numbers from 1 to 1000 are chosen at random, one at a time, find the probability that they will be all multiples of .

BuilderBoi ●●●●

Guest Feb 14, 2022

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302

1

quadratics

What is the maximum value of 4(x + 7)(2 - x) + 4(x + 7)(6 - x), over all real numbers x?

Guest Feb 14, 2022

0

287

2

Graphing quadratic

The height (in meters) of a shot cannonball follows a trajectory given by h(t) = -4.9t^2 + 14t - 0.4 at time t (in seconds). For how many seconds is the height of the cannonball at least meters?

Guest Feb 14, 2022

0

237

1

Probability

The three-digit positive integer has a ones digit of 3. What is the probability that is divisible by ? Express your answer as a common fraction.

Guest Feb 14, 2022

0

324

2

Geometry

We know angle A=45, angle B= and BC=\sqrt{6}. What is AB?

Guest Feb 14, 2022

0

304

1

Coefficient question

Let f(x) = x^3 + 4x and g(x) = -x^7 + 5x^4 - x^3 + 3x + 1. What is the coefficient of x^3 in the sum f(x) + g(x).

Guest Feb 14, 2022

0

293

1

Coordinates

Find a if the point (3, a) is on the line that passes through (-2, 7) and .

Guest Feb 14, 2022

0

304

1

help quadratic

What real value of t produces the smallest value of the quadratic t^2-9t-36+t^2-11t?

Guest Feb 14, 2022

0

658

2

what is the midpoint of the segment shown below (-1,5) - (-6,-2)=

what is the midpoint of the segment shown below (-1,5) - (-6,-2)=

Guest Feb 14, 2022

0

276

1

Probability

A point in space $(x,y,z)$ is randomly selected so that $-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$. What is the probability that $x^2+y^2+z^2\le 1$?

Guest Feb 14, 2022

0

225

1

Geometry

In the diagram, triangle ABE, triangle BCE and triangle CDE are right-angled, with angle AEB = angle BEC = angle CED = 50 degrees, and AE=24. Find the perimeter of quadrilateral ABCD.

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Guest Feb 14, 2022

0

262

2

Probability

What is the probability that at least two of the faces match when you roll four fair six-sided dice? Express your answer as a common fraction.

Guest Feb 14, 2022

0

234

1

Coordinates

Find the center of the circle with equation 9x^2 - 18x + 9y^2 + 45y - 44 = 0.

Guest Feb 14, 2022

0

230

1

Parabola

The parabola y = x^2 is tangent to a circle at (2,4). The circle passes through the point (0,1). Find the center of the circle.

Guest Feb 14, 2022

0

245

1

Graphing parabolas

The graph of y = ax^2 + bx + c is given below, where a, b, and c are integers. Find a.

Guest Feb 14, 2022

0

233

1

help with quadratic

The graph of the quadratic y = ax^2 + bx + c has the following properties: (1) The maximum value of y = ax^2 + bx + c is 5, which occurs at x = -8. (2) The graph passes through the point (0,-17). If the graph passes through the point (4,m), then what is read more ..

Guest Feb 14, 2022

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