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Degrees, minutes and seconds |
2020-02-21 |
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From Jonathan:
If a cone has an angle of 22 degrees, when i place it flat on a surface, the new resulting central angle is now at 68.69123834, but how come when i saw it on my friend it say 68 degree and 40 minutes, what is this minute?
Answered by Penny Nom. |
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30% profit |
2020-02-20 |
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From Sidra:
A car dealer bought a car for £7500 and sold it for 30% profit.
For how much did he sell the car?
Answered by Penny Nom. |
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Multiplication base 8 |
2020-02-19 |
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From Tamesha:
Let’s count with the symbols 0,1,2,3,4,5,6,7 (base 8)
A). Create a multiplication table for this base
B). Compute the following products using the multiplication algorithm
I). 7605 times 3713
II). 63725 times 40627
Answered by Penny Nom. |
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The volume of a cylinder |
2020-02-12 |
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From Mack:
I need to find how close the actual volume was of a cylinder (with both ends closed)
to being optimized. Can you please send step by step response?
Height = 11cm
Circumference = 24.4cm
Thanks,
Mack
Answered by Penny Nom. |
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Sipping juice from a Tetra Pak |
2020-02-11 |
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From Anjhelic:
Karen is sipping juice from a 1 in. by 3 in. by 6 in tetra pack at the rate of 0.5in³/sec. How fast is the height of juice in the pack decreasing?
Answered by Harley Weston. |
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The area of a triangle from two angles and a side |
2020-02-10 |
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From Chinmoy:
How to measure the area of a triangle with two angles and length of the included side known?
Answered by Harley Weston. |
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A parabolic arch |
2020-02-06 |
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From icyy:
how high is the parabolic arch of span 20 feet and height of 16 feet, at a distance 5 feet from the center?
what equation will I be going to use? thank you
Answered by Penny Nom. |
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The side length of a hexagon |
2020-02-05 |
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From Rob:
I have a hexagon that is 8 feet wide how long would the sides be?
Answered by Penny Nom. |
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What was the original price? |
2020-02-01 |
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From Gracie:
If you buy something for $6.30 and it’s 30%off what was the original price?
Answered by Penny Nom. |
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A system of inequalities |
2020-02-01 |
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From Isaac:
Austin has x nickels and y dimes, having a maximum of 15 coins worth a minimum of $1 combined. No more than 4 of the coins are nickels and no less than 11 of the coins are dimes. Solve this system of inequalities graphically and determine one possible solution.
Answered by Penny Nom. |
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Translation by a vector |
2020-01-30 |
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From Jude:
M(3,-2) is the image of the point M under a translation by the vector (-5,2). Find the coordinates of M
Answered by Penny Nom. |
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A question about fractions |
2020-01-26 |
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From Awotile:
A fraction whose denominator is more than the numerator is double when the numerator is increased by 6 and the denominator is increased by 5 find the original fraction?
Answered by Penny Nom. |
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A point on a line |
2020-01-25 |
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From Samved:
The line 3x/5 - 2y/3 + 1 = 0 contains the point (m, 2m-1). Calculate the value of 'm'.
Answered by Penny Nom. |
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The volume of a coffee cup |
2020-01-25 |
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From Amirah:
What is the volume of a polystyrene cup with a height of 8cm, diameter of 5cm at the top and 4cm at the bottom when it is filled with water?
Answered by Penny Nom. |
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gcd(a^2 + b^2, a + b) |
2020-01-19 |
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From Roger:
I am stuck with this problem: find the gcd(a^2+b^2, a+b), where a & b are relatively prime integers not both zero.
Answered by Penny Nom. |
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