All Questions ⁺⁰237784 Questions

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138

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counting

In how many ways can three points be selected from the grid below so that they form a right isosceles triangle?

Guest Apr 12, 2023

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141

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Geometry

In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that the read more ..

Guest Apr 12, 2023

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139

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Probability

Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.5.

Guest Apr 12, 2023

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142

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counting

Six children are each offered a single scoop of any of 3 flavors of ice cream from the Combinations Creamery. How many ways can each child choose a flavor for their scoop of ice cream so that some flavor of ice cream is selected by exactly three c read more ..

Guest Apr 12, 2023

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157

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+1348

Can I get help

I need help with geometry.
A certain square and a certain equilateral triangle have the same perimeter. The square and triangle are inscribed in circles, as shown below. If A is the area of the square and B is the area of the triangle, read more ..

sandwich Apr 12, 2023

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165

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counting

In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in front of their sibling?

Guest Apr 12, 2023

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145

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counting

Find the number of six-digit numbers, where the sum of the digits is divisible by 8.

Guest Apr 12, 2023

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144

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geometry

Let B, A, and D be three consecutive vertices of a regular -gon. A regular heptagon is constructed on AB with a vertex C next to A Find angle BCD in degrees.

Guest Apr 12, 2023

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176

1

0,n3 + 0,n4 + 0,n7 = 4/9 . hallar 'n'.

0,n3 + 0,n4 + 0,n7 = 4/9 . hallar "n".

Guest Apr 12, 2023

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158

4

A really hard problem

hi im new to this but i found a really hard problem that I've been stuck on for hours.
The circles C1 and C2 are defined by the equations x2 +y2 =1 and (x-2)2 +y2 = 16 respectively. Find the locus of the centers read more ..

Guest Apr 12, 2023

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148

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Probability

What do I do
Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 20?
Guest Mar 16, read more ..

Guest Apr 12, 2023

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159

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pls help

The tangent to the circumcircle of triangle $WXY$ at $X$ is drawn, and the line through $W$ that is parallel to this tangent intersects $\overline{XY}$ at $Z.$ If $XY = 14$ and $WX = 6,$ find $YZ.$ [asy] unitsize(2 cm); pair A, B, C, D; A = dir(110); B read more ..

Guest Apr 12, 2023

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139

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geometry

In triangle ABC, the angle bisector of angle BAC meets AC at D. If angle BAC = 60, angle ABC = 60, and AD = 24, then find the area of triangle ABC.

Guest Apr 12, 2023

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151

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i need help

Two cities are 64 miles apart. If the distance on the map is 314 inches, what is the scale of the map? Round to the nearest tenth of a mile if necessary.

Guest Apr 12, 2023

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162

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Algebra 1 cc. 17

this is the question "
A parabola opening up or down has vertex (0,3) and passes through (16,-13). Write its equation in vertex form.
Simplify any fractions.

Guest Apr 12, 2023

Apr 11, 2023

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135

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geometry

Angle bisectors AX and BY of triangle ABC meet at point I. Find angle C in degrees, if angle AIB= degrees.

Guest Apr 11, 2023

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