All Questions ⁺⁰237665 Questions

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587

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I'm stuck

Two candles of the same length are lighted at the same time.The first is consumed in 6 hours and the second in 4 hours.Assuming each candle burns at a constant rate,in how many hours after being lighted was the first candle twice the length of the second. read more ..

Guest Jun 21, 2020

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420

0

need help

The arc lengths of the small and large circles is π and 4π respectively.
If the radius of the smaller circle is 5, find the length of the segment labeled x.

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Guest Jun 21, 2020

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435

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help

If CD=12 and E and F are the mid points of AD and BC respectively, find the area of the shaded area.

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Guest Jun 21, 2020

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418

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can you help?

For a real number x, find the minimum value of cos(2x) + cos(x).

Guest Jun 21, 2020

+9

813

4

+771

What would the conditions be?

We define a bow-tie quadrilateral as a quadrilateral where two sides cross each other. An example of a bow-tie quadrilateral is shown below.

Seven read more ..

CentsLord Jun 21, 2020

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713

1

help

ABCD is a quadrilateral with measurements of its sides shown in the above diagram. If AB is parallel to CD What is the area of the quadrilateral?

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Guest Jun 21, 2020

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546

1

need help

Let f(x) be a linear function. Given that f(6) - f(2) = 12, find f(12) - f(2).

Guest Jun 21, 2020

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455

1

A Little Help?

In right triangle ABC, angle C = 90 degrees. Median AM has a length of 19, and median BN has a length of 13. What is the length of the hypotenuse of the triangle?

Sorry for posting for a second time! read more ..

Guest Jun 21, 2020

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424

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help

Factor 9x^2 - 6ax + a^2 - b^2.

Guest Jun 21, 2020

0

686

12

I'm a little bit confused.

Triangle ABC is isosceles with AB = BC. If AC = 20 and [ABC] = 240, then find the perimeter of triangle ABC.
Hello! I have this problem for a math class and I'm a bit confused. What do the brackets around ABC mean? Please don't read more ..

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Guest Jun 21, 2020

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415

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help

Suppose a, b, c and d are positive numbers. There are 6 possible products obtained by pairing them (namely ab, ac, ad, bc, bd and cd). The values of 5 products (in random order) are 2, 3, 5, 6, 9. Find the sixth product. read more ..

Guest Jun 21, 2020

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548

1

please help

As it is shown in the diagram on the right, there is a 10cm square inside the quarter of the circle.
Find the area of the shaded part

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Guest Jun 21, 2020

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491

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help

A circle passes through three points P, Q and R. Given that PR is a diameter of circle, PQ is 24 and QR is 7, find the area of the shaded region.

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Guest Jun 21, 2020

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481

2

hellp plz

Guest Jun 21, 2020

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654

4

I dont really know how to do this

hi! So let me give you the question then my thoughts
question- Points T and U lie on a circle centered at O, and point P is outside the circle such that and are tangent to the circle. If , then what read more ..

Guest Jun 21, 2020

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713

3

who can answer it?

Four-fifths of 1195?

Guest Jun 21, 2020

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599

1

help

The perimeter of a rhombus is 48 and the sum of the lengths of its diagonals is 26.
What is the area of the rhombus?

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Guest Jun 21, 2020

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637

1

Math

Hello:
I need help with this math question with how to solve answer:
The percentage voters who voted in this election was 55%, up 179 the percentage that voted at the last election.
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Guest Jun 21, 2020

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438

0

help

Let ABC be a triangle in which AB = AC and let I be its incentre. Suppose BC = AB + AI. Find the value of ∠BAC in degrees.

Guest Jun 21, 2020

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443

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geometry

A square is inscribed in circle C,circle D is inscribed in that square. what is the ratio of arears of circe C to D?

Guest Jun 21, 2020

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609

1

need help

Above shows a unit square ABCD such that both semi-circles passing through the centre of the square, O. Find the area of the shaded region. Answer to 3 significant figures.

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Guest Jun 21, 2020

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491

1

Quadratic Equations

A quadratic of the form -2x^2+bx+c has roots of 3+sqrt5 and 3-sqrt5. The graph of y=-2x^2+bx+c is a parabola. Find the vertex of this parabola.

Guest Jun 21, 2020

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586

4

Some Quick Advice

So, this is not really a question for a problem, but I just wanted to ask for some quick advice. So, I've been doing online math classes for about one and a half years now, and sometimes when I really can't figure questions out, (Yes, I actually do try read more ..

off-topic

Guest Jun 21, 2020

0

1153

1

+335

HALP!!!

wo friends Bill and Tony want to evaluate each sum shown below and round it to the nearest whole number. Bill decides to take a shortcut by first rounding off each number in the sum to the nearest whole number, and then adding the whole numbers. Tony decides read more ..

Rayjplayz Jun 21, 2020

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