Hans007

28 Questions
0 Answers

-1

2638

4

+110

The surface area of a sphere is A pi cm^2

The surface area of a sphere is A pi cm^2 and the volume of the sphere is B pi cm^3 where both A and B are four-digit whole numbers. Find the radius of the sphere.

Hans007 Feb 11, 2018

-1

1

2678

3

+110

if three straws are chosen at random from a set of 9 straws

if three straws are chosen at random from a set of 9 straws whose lengths are 1cm, 2cm 3cm, 4cm, 5cm 6cm, 7cm, 8cm, and 9cm find the probability that the three straws will form a triangle.

Hans007 Feb 11, 2018

-1

2

3158

1

+110

A rectangular prism 3cm by 5cm by 6cm

A rectangular prism 3cm by 5cm by 6cm is painted mauve and is then cut into 1 cm cubes what is the total unpainted surface area of these cubes

Hans007 Feb 11, 2018

-1

2077

1

+110

Three concentric circles

Three concentric circles are drawn such that the area of the smallest circle is equal to the area of each of the rings. If the radius of the largest circle is 12 cm, what is the radius of the smallest circle?

Hans007 Feb 11, 2018

0

3094

10

+110

find how many digits in the base 10 number 9^(9^9) has when written in base nine

Find how many digits in the base 10 number 9^(9^9) has when written in base nine

Melody ●●●●●●●●●●

Hans007 Feb 11, 2018

0

2285

2

+110

The number 15 factorial ends in p zeros when converted to base 12. Find p

The number 15 factorial ends in p zeros when converted to base 12. Find p

Hans007 Feb 10, 2018

0

1

4920

2

+110

If the lengths of the two equal sides of an iscoseles triangle

If the lengths of the two equal sides of an isosceles triangle are each x cm find the length of the third side so that the triangle has the maximum area.

Hans007 Feb 10, 2018

0

2700

1

+110

A fence encloses

A fence encloses a square field whose sides measure 10m. A horse is tethered on a rope that is attached to a corner post of the field so that the horse is outside the fence.If the rope holding the horse is 18m long, find the total grazing area of the horse read more ..

Hans007 Feb 9, 2018

0

2240

1

+110

A+MEAN+MEAN+MAN+A=CHEAT

A+MEAN+MEAN+MAN+A=CHEAT

Each distinct letter in this addition alphametic stands for a different digit. Find the value of CHEAT.

Hans007 Feb 9, 2018

0

2608

1

+110

The numbers from 1 to 11 are drawn at random. Find the probability that the even numbers will all be drawn before the odd numbers.

The numbers from 1 to 11 are drawn at random. Find the probability that the even numbers will all be drawn before the odd numbers.

Hans007 Feb 9, 2018

0

1645

1

+110

The vertices of a regular nonagon are labeled ABCDEFGHJ

The vertices of a regular nonagon are labeled ABCDEFGHJ clockwise around the figure. A counterclockwise rotation of d° about the centre will map B onto D. Find the smallest value of d.

Hans007 Feb 9, 2018

0

2187

1

+110

The number 2^3217 -1

The number 2^3217 -1 is a very large prime find how many digits it would take to write the number in decimal form. ( Hint: Log 2 is an interesting irrational number It's the power of 10 that gives 2, in the same way, that 3 is the power of 10 that read more ..

Hans007 Feb 9, 2018

0

672

0

+110

a five digit

A five digit number is chosen at random from all possible 5 digit numbers find the probability that the number is not divisible by every element

Hans007 Feb 7, 2018

0

1950

1

+110

find the area of the quadrilateral formed with vertices at point (1,2) (5,8) (8,6) (4,0)

Find the area of the quadrilateral formed with vertices at point (1,2) (5,8) (8,6) (4,0)

Hans007 Feb 7, 2018

0

986

1

+110

How many planes of symmetry does a rectangular solid 9cm by 9cm by 12cm have

How many planes of symmetry does a rectangular solid 9cm by 9cm by 12cm have

Hans007 Feb 7, 2018

0

2397

1

+110

Each side of a regular octagon is y cm long find the distance in cm between any two parallel sides of this octagon

Each side of a regular octagon is y cm long find the distance in cm between any two parallel sides of this octagon

Hans007 Feb 7, 2018

0

2381

1

+110

Sheila is 17 years younger than Gil.

Sheila is 17 years younger than Gil. If Gil' s age is written after Sheila's the result is a four-digit perfect square.The same statement could be made 13 years from now find Sheila's age.

Hans007 Feb 5, 2018

+1

5679

1

+110

The point (x,y) is first reflected in the x-axis then rotated 90 degrees clockwise

The point (x,y) is first reflected in the x-axis then rotated 90 degrees clockwise about the origin, then reflected in the y-axis . What is the image point?

Hans007 Jan 30, 2018