All Questions ⁺⁰237641 Questions

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586

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I need help PLS

What is 6x + 7 = 11x -13 in Algebra?

Guest Dec 8, 2019

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464

0

help

Find all ordered triples of real numbers (x,y,z) that satisfy
yz + zx = 13,
xz + xy = 25,
zxy + yz = 20. read more ..

Guest Dec 8, 2019

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565

1

help

If sin x + cos x = -1/5, and 3/4*pi <= x <= pi, then find cos 2x.

Guest Dec 8, 2019

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562

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help

Find all real values of x that satisfy (16x^2 - 9)^3 + (9x^2 - 16)^3 = (25x^2 - 25)^3.

Guest Dec 8, 2019

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462

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Mod math help

What is the remainder when the sum of this sequence is divided by 170? Thank you.
1 + 2^3 + 3^2 + 4^5 + 5^4 + 6^7 + 7^6 +.....+ 99^100 + 100^99

Guest Dec 8, 2019

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431

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help

A rectangular sheet of paper, ABCD, is folded and creased so that AD lies long DC. The crease formed determined a point E on AB, and it is found that E is the trisection point of AB nearer B. Find EC:BC.

Guest Dec 8, 2019

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584

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The squares of three positive integers are in arithmetic progression, and the third integer is 12 more than the first. Find the three integers.

Guest Dec 8, 2019

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429

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help

The altitude and the median from vertex A of triangle ABC are 4 and 5 units long, respectively. The anlge determined by AB and the median is bisected by the altitude. Find AC.

Guest Dec 8, 2019

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721

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Help

Let ABC be a triangle with centroid G. Points L, M, and N are the midpoints of sides BC, CA, and AB respectively. Let D be the foot of the altitude from A to BC and let K be the foot of the altitude from L to MN.
(a) Show that read more ..

Guest Dec 8, 2019

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549

2

Help

Points M, N, and P are the midpoints of sides TU, US, and ST of triangle STU, respectively, and UZ is an altitude of the triangle. If and TSU=71, angle STU=39, and , angle TUS=70 then what is angle NZM+ angle NPM in read more ..

Guest Dec 8, 2019

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1033

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help please

if a mass of 500kg lifted through a height of 2 meters what is the work done

Guest Dec 8, 2019

+1

1864

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Help

A lattice point in the x,y-plane is a point both of whose coordinates are integers (not necessarily positive). How many lattice points lie on the graph of the equation x^2-y^2=47

Guest Dec 8, 2019

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625

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help

In the rectangular coordinate system, find the area of the region bounded by the graph of |x - 3| + |y - 1| = 2.

Guest Dec 8, 2019

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845

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help

Compute the value of the expression

Guest Dec 8, 2019

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696

1

PLz help im stuck

Find a polynomial q(x) such that (x+1)^3+x^2*q(x) has degree less than 2.

Guest Dec 8, 2019

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738

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need probability help fast!

Every time I use a piece of scrap paper, I crumple it up and try to shoot it inside the recycling bin across the room. I'm pretty good at it: If I shoot 5 pieces of paper at the recycling bin, at least one of them will make it inside the recycling bin with read more ..

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Guest Dec 8, 2019

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538

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help

The points A(-1,4) and B(2,-3) are in rectangular coordinate system. Piont C is on AB with AC:CB = 3:4. Find the coordinates of C.

Guest Dec 8, 2019

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592

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help

In a triangle, the lengths of the three medians are 9, 12, and 15. Find the length of the side to whcih the longest median is drawn.

Guest Dec 8, 2019

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957

3

help

An integer is represented by a two-digit base ten numeral. If three times the sum of its digits is added to the integer, the reuslt is the original integer with digits reversed. Finall such positive integers.

Guest Dec 8, 2019

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459

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help

In rectangle ABCD, AB = 6 and BC = 8. Equilateral triangles ADE and DCF are drawn on the exterior of the rectangle. FInd the area of triangle BEF.

Guest Dec 8, 2019

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792

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help

Let a, b, and c be positive integers such that a is the cube of an integer, c = b + 1, and a^2 + b^2 = c^2. Find the least possible value of c.

Guest Dec 8, 2019

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465

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help

In base fifty, the integer x is represented by the numeral CC and x^3 is represented by the numeral ABBA. If C > 0, express all possible value of B in base ten.

Guest Dec 8, 2019

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2137

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+262

help!

Find all solutions of the equation |x^2-20x-1|=20.
i don't want the answer, but what am i supposed to do with the absolute value?

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atlas9 Dec 8, 2019

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1036

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+1713

Square-mania

In square ABCD, AD is four centimeters, and M is the midpoint of CD. Let O be the intersection of AC and BM. What is the ratio of OC to OA? Express your answer as a common fraction.

Work:
... read more ..

tommarvoloriddle Dec 8, 2019

2 Online Users