All Questions ⁺⁰237676 Questions

0

447

1

quadratic

The equation y = -16t^2 - 80t + 54 describes the height (in feet) of a ball thrown downward at 80 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 hit the ground? Express read more ..

Guest Jul 11, 2021

0

421

1

help solve inequality

Find all real numbers s such that -2(s + 7) > 4s + 8. Please give your answer in interval notation.

Guest Jul 11, 2021

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418

1

help with inequality

Enter the letters of the points that satisfy the inequality y > -x + 2.

Guest Jul 11, 2021

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415

1

Analytic Geometry

Determine an expression for the area of triangle QCA in terms of p.

Guest Jul 11, 2021

0

271

0

help algebra

The roots of y^2 - 5y - 11 = 0 are a and b. Find (a + 3)(b + 3).

Guest Jul 11, 2021

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440

2

base numbers

How many zeroes does 66^2 end in when written in base 12?

Guest Jul 11, 2021

0

446

1

+129

Fractions

The cost of a table lamp was 2/3 the cost of a fan. A coordinator spent 3/5 of his money on 12 table lamps and 2 fans. He then used the rest of his money to buy another 4 fans and some table lamps.
(a) If he had spent all his money on the read more ..

Soyoxxommm Jul 11, 2021

+1

481

1

+26

Fractions

Alan, Ben and Carl shared some marbles. Alan had 1/3 of what Ben and Carl had. Ben had 1/5 of what Alan and Carl had. Alan had 24 fewer marbles than Carl. How many marbles did they have altogether?

Fritzizj Jul 11, 2021

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279

0

Algebra

Find the value of $6+\frac{1}{6+\frac{1}{6+\frac{1}{6+\frac{1}{6+\cdots}}}}$. Your answer should be in the form of a+b*sqrt(c) where no factor of c (other than 1) is a square. Find a+b+c

Guest Jul 11, 2021

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307

1

Domain

If h(x) is a function whose domain is [-8,8], and g(x)=h(x)/2, then the domain of g(x) is an interval of what width?

Guest Jul 11, 2021

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407

1

Domain

Let f(x)= 2*sqrt(x). What is the domain of f? Express your answer with interval notation.

Guest Jul 11, 2021

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296

0

Geomtery

Segments \overline{BD}BDstart overline, B, D, end overline and \overline{CE}CEstart overline, C, E, end overline are axes of the ellipse below.
Which of the following reflective symmetries apply to the ellipse below?
AABBCCDDEE read more ..

Guest Jul 11, 2021

0

509

3

Pythagorean Triples

The numbers 20, 99, and 101 form a Pythagorean triple. A right triangle has heights 20, 99, and x where x is the shortest height. What is x?

Guest Jul 11, 2021

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375

1

help geometry

In rectangle ABCD, shown here, CE is perpendicular to BD. If BC = 3 and DC = 3, what is CE?

Guest Jul 11, 2021

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441

1

help geometry

In isosceles right triangle ABC, shown here, AC=BC. Point X is on side BC such that CX=6 and XB=12, and Y is on side AB such that $\overline{XY}\perp\overline{AB}$. What is the length AX?

read more ..

Guest Jul 11, 2021

Jul 10, 2021

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403

1

qudaratic properties

What real value of t produces the smallest value of the quadratic t^2 + 9t - 36 - 7t + 45?

Guest Jul 10, 2021

0

437

3

help algebra

The roots of 7x^2 + x - 5 = 0 are a and b. Compute 1/a + 1/b.

Guest Jul 10, 2021

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512

2

counting question

How many isosceles triangles with whole-number length sides have a perimeter of 28 units?

Guest Jul 10, 2021

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423

1

quadratic

There exist constants a, h, and k such that
3x^2 + 12x + 4 - 2x^2 + 11x - 7 = a(x - h)^2 + k
for all real numbers Enter the ordered triple (a,h,k).

Guest Jul 10, 2021

0

517

8

+31

Please Help!

Hi! I'm stuck on this problem. I've found out the slope, which is -1/3, and the part I'm stuck on is the y intercept. I'm not sure if it's -2 1/2, or -3, or -2 3/4. Please help!! Thank you

Find a linear inequality with read more ..

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GLAZ3D Jul 10, 2021

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426

2

Floor function

Find the value of $x$ if $x$ is positive and $x\cdot\lfloor x\rfloor=700$. Express your answer as a decimal.

Guest Jul 10, 2021

0

374

2

Piecewise Function Help This one is the real one

Consider the function where is some number.

What is the largest value of such that the graph of intersects every horizontal line at least once?

Guest Jul 10, 2021

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361

1

Piece-wise Function Help

Consider the functionwhere is some number.

What is the largest value of such that the graph of intersects every horizontal line at least once?

Guest Jul 10, 2021

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488

2

Number Theory

Recall that a perfect square is the square of some integer. How many perfect squares less than 1,000 can be represented as the difference of two consecutive perfect squares?

Guest Jul 10, 2021

0

407

1

help with counting

How many numbers are there between 500 and 600 in which 9 occurs only once?

Guest Jul 10, 2021

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