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Algebra
The use of letters to substitute unknown numbers to form an equation. Solve the equation to get the unknown number using different methods such as simultaneous equations and more.
227,579 Questions
Oh, dude, 2k x k is just 2k^2. It's like multiplying 2 by k and then squaring the result because math loves to keep things interesting. So yeah, 2k x k equals 2k^2, but like, who's really keeping track anyway?
What is the radius of a 1cm circle?
The radius of a 1cm circle is 0.5cm. The radius is the distance from the center of the circle to any point on the circle's circumference. In a circle, the radius is always half the length of the diameter. Therefore, in this case, with a diameter of 1cm, the radius would be 0.5cm.
Why work done on the system is negativeand it is positive when its done by the system?
First, there are certain sign conventions. It could be defined in a different way, but things are traditionally done in a certain way. Second, if work going out of the system is defined as positive, then it is quite logical that work going into a system should have the opposite sign.
What is the diameter of a 64 foot circumference?
Oh, dude, let me break out my trusty calculator for this one... Okay, so the diameter of a circle is just the circumference divided by pi, which is like 3.14 or something, right? So, for a 64-foot circumference, the diameter would be around 20.37 feet. But hey, who's really measuring to the hundredth of a foot anyway, right?
What is the difference between 5 and 30?
The difference between 5 and 30 is 25. This is calculated by subtracting 5 from 30, which equals 25. In mathematical terms, the formula for finding the difference between two numbers is to subtract the smaller number from the larger number.
Alvin's age is three times Elga's age The sum of their ages is 76 What is Elga's age?
Let's represent Elga's age as x. Since Alvin's age is three times Elga's age, we can represent Alvin's age as 3x. The sum of their ages is 76, so we can create an equation: x + 3x = 76. Combining like terms, we get 4x = 76. Dividing both sides by 4, we find x = 19. Therefore, Elga's age is 19 years old.
What is the third square root of 216?
Do you mean (((216^(1/2))^(1/2))^(1/2)) or [216^(1/2)] / 3
The first answer is 216^(1/8) = 1.957973....
The second one is 216^(1/2) / 3 = 4.898979486....
First assuming the log base is '10' ; as per calculaotrs.
Then
log(10) x = y
Then its inverse is
x = 10^(y)
Hence it follows
Inverseof log(10) -0.123 = 10^(-0.123) = 1/10^(0.123) = 1/1.327394458... = 0.753355563....
NB Logs of different bases , like 'e/ln' will give different answers.
What is 5832 in expanded form using exponets?
Oh, dude, you're hitting me with the math questions, huh? Alright, so 5832 in expanded form using exponents would be 5 x 10^3 + 8 x 10^2 + 3 x 10^1 + 2 x 10^0. It's like breaking down a big number into its fancy little parts. Cool, right?
Strictly speaking LXXXVI is very much a number - it is simply not in a familiar form.
In decimal notation, it is 86.
What are the full names of polygons from 3 to 100?
Triangle, Quadrilateral, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon are 3-10. After that, they are usually just referred to as 11-gon, 12-gon, etc., but there is a latin naming system. See related links.
To square a number, multiply it by itself, so 7 squared, also written as 72, is 7 x 7, or 49.
Why is division by zero is undefined or not allowed?
Any non-zero number divided by zero is infinity (positive or negative), but your calculator may give an error. Try it with a very small number such as 0.000001, as you make it smaller the result will become larger. The reason is that for a given number, you can put 0 into it as many times as you want - an infinite amount.
However, this will give us many problems with division. For any other number, division has very useful properties. If we have some unknown number called 'x', and we have an equation that says: x/3 = 5/3, then we can deduce that x=5. Another example: x/4 = 7/4. We can deduce that x=7. But when we allow division by zero, this property is lost: 3/0 = infinity = 4/0, but 3 is not equal to 4. We also lose many other useful properties if we allow division by zero. However, we do almost allow division by zero. This is done by taking what is known as a limit as the divisor, x, tends to zero (we write x→0), and this is an integral part of calculus.
0/0 is a special case of division by zero. Notice that for any non-zero number, let's call it 'y', we get y/y = 1. But we say that 0/0 is undefined, or indeterminate. We can still take limits when something looks like it might be equal to 0/0. For example, the limit of sine(x)/x as x→0. We know that sine(x) = 0 when x=0, but it can be proven that sine(x)/x →1 as x→0. But we can also prove that x2/x → 0 as x→0. So the result is different depending of different situations.
What are the dimensions of a cube whose volume is 350cm?
Volume of the cube = 350 cm3
Since all the sides of the cube are equal so its volume is given by (side)3.
Volume = 350 cm3
(side)3 = 350 cm3
side = (350)1/3 cm
side = 7.04 cm
So side of the cube is 7.04 cm.
How long is a 19 mile trip at 60 miles per hour?
How lomg is a 19 mile trip?? It is 19 miles long (distance ; NOT time).
However, the time period is: -
speed = distance / time
time = distance / speed
time = 19 miles / 60 mph
time = 0.316666.... hours.
Well, isn't that a happy little question! To divide 3 into 5 equal parts, you simply need to think of it like sharing a yummy cake with friends. Each part would be like a slice of that delicious cake, making sure everyone gets an equal piece to enjoy. Just remember to cut carefully and share with love!
Are 2 lines have no common point is always parallel?
In a 2 dimensional plain they would have to be parallel in order to have no common point; in a 3 dimensional field they do not have to be parallel.
How many minimum number of cuts required to get 343 pieces?
The answer depends on whether you start off with a open ended object like a strip of paper of a length of fabric, or a closed object like a loop of paper or a doughnut.
The answer also depends on whether you can stack pieces that you have already cut for the next cut.
For an open ended object and no stacking, you will need 342 cuts.
How many groups of 2 are there in 8?
Oh, what a happy little question! In the world of numbers, we can see that 8 can be divided into 4 groups of 2. Each group has 2 members, creating a sense of balance and harmony. Just like painting a beautiful landscape, math can also be a wonderful way to create patterns and explore the world around us.
What is the average speed of a car that travels 350 km in 5 hr?
Well, darling, to find the average speed of a car, you just divide the total distance traveled by the total time taken. So, in this case, 350 km divided by 5 hours equals 70 km/h. That car's cruising along at a cool 70 kilometers per hour, not too shabby!
What is the square meter of 21ft x 12ft?
Alright, darling, let's get this straight. First, we convert those pesky feet to meters because apparently, we can't just stick to one unit of measurement. 21ft is roughly 6.4m and 12ft is about 3.7m. Now, we multiply 6.4 by 3.7 to get a square meterage of around 23.68 square meters. Voila!
