All Questions ⁺⁰237749 Questions

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674

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An equilateral triangle has an area of 64sqrt3 cm^2 .

An equilateral triangle has an area of 64sqrt3 cm^2 . If each side of the triangle is decreased by 2 cm, by how many square centimeters is the area decreased?

Guest Nov 21, 2020

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532

1

Line p

Line p passes through points (-1, 2) and (-3, -5). What is the slope of a line perpendicular to p

Guest Nov 21, 2020

0

589

1

Altitudes AX and BY of acute triangle ABC intersect at H

Altitudes AX and BY of acute triangle ABC intersect at H. If angle AHB=142, then what is angle ACB?

Guest Nov 21, 2020

0

570

1

please help asap pt. 2

one question was left unanswered, and im afraid its going to get buried. anyways, here!

Enter the letters of the points that satisfy the inequalities
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Guest Nov 21, 2020

0

726

4

+92

Pls help thx

The diagonal of a rectangle and the diagonal of a square have the same length. The diagonal of the rectangle forms a $60^\circ$ angle with one of its sides. $R$ is the ratio of the area of the rectangle to that of the square. Find $R^2.$ read more ..

AaronWang2004 Nov 21, 2020

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630

1

perpendicular bisector

The graph of the line x + y = b is a perpendicular bisector of the line segment from (1,3) to (7,9). What is the value of b?

Guest Nov 21, 2020

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614

1

Finding the speed of airplanes based on the route

Two airplanes are 1000 miles apart on routes that intersect at right angles. One plane flies 100 miles an hour faster than the other. What are their rates if each reaches the intersection in 2 hours?

Guest Nov 21, 2020

0

384

2

please help asap

1. Enter the letters of the points that satisfy the inequality

2. Enter the letters of the points that read more ..

Guest Nov 21, 2020

0

675

1

triangle XYZ

In triangle XYZ, XY = 20, YZ = 15 and XZ = 25. Y is reflected over XZ to Y'. Z is reflected over XY to Z'. Find Y'Z'.

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Guest Nov 21, 2020

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536

1

What is the sum of all positive integers that have twice as many digits

What is the sum of all positive integers that have twice as many digits when written in base 2 as they have when written in base 4? Express your answer in base 10.

Guest Nov 21, 2020

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411

0

how many lattice points

If x >= 0 and y >= 0, how many lattice points does the line y = -2x + 78 pass through? (A lattice point is a point with integer coordinates.)

Guest Nov 21, 2020

0

681

1

+205

Discrete, Continuous, or Qualitative?

Discrete, Continuous, or Qualitative

parpar1 Nov 21, 2020

0

634

1

+92

Pls help thx

In quadrilateral $ABCD,$ $\angle A=75^\circ,\angle B=90^\circ,\angle C=105^\circ,$ and $AB=BC=3\sqrt 2.$ Find $CD.$

AaronWang2004 Nov 21, 2020

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575

1

algebra

Let 7x^2 + 8x = h. What value of h will give us exactly one solution for x?

Guest Nov 21, 2020

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641

1

What constant k

What constant will make y^2 + 28y + 16 + k the square of a binomial?

Guest Nov 21, 2020

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363

0

two roots of the quadratic 3x^5 + 5x + k

If the two roots of the quadratic 3x^2 + 5x + k = 0 are (-5 +/- sqrt(59)*i)/6, what is k?

Guest Nov 21, 2020

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426

0

For what value of k

For what value of k does the line represented by the equation-1/2 - kx = 6y contain the point (1/4,-6)?

Guest Nov 21, 2020

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1297

2

D, E and F are the midpoints of BC, CA, and AB respectively.

D, E and F are the midpoints of BC, CA, and AB respectively. A dilation maps triangle ABC to triangle AFE. What is the scale factor of this dilation?

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Guest Nov 21, 2020

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608

2

Triangle ABC is first rotated clockwise about A for 90 degrees to triangle AB1C1.

Triangle ABC is first rotated clockwise about A for 90 degrees to triangle AB1C1. Triangle AB1C1 is then reflected over B1C1 to triangle A1B1C1. Triangle A1B1C1 is then translated 8 units to the right to triangle A2B2C2. read more ..

Guest Nov 21, 2020

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718

1

A dilation with scale factor -3

A dilation with scale factor -3 maps X to X' and Y to Y'. Given X'Y' = 12, find XY.

Guest Nov 21, 2020

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1662

1

I need some help! Thank you!!

Hi! I'm currently stuck on solving this problem:

"The triangle ABC is an isosceles triangle where AB = 4sqrt(2) and angle B is a right angle. If I is the incenter of triangle ABC, then what is BI? Express your answer read more ..

Guest Nov 21, 2020

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378

0

(√3-i)5

Guest Nov 21, 2020

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