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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.
500 Questions
What is 1x2x3x4x5x6x7x8x9 any easy way to solve it other than multiplying them one after the other?
Asked by Wiki User
Take the middle digit which is 5 and multiply it by the end digit which is 9 and 9*5 = 45 but this rule is only applicable to the addition of consecutive whole numbers.
What is 38.40 for 16 gallons of gas as a unit rate?
Asked by Wiki User
38.40 for 16 gallons = 2.4 per gallon.
If your traveling 3000 miles and gas is 2.75 per gallon and the car gets 24 miles per gallon how much would that cost?
Asked by Wiki User
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Shapes with same symmetry as the equilateral triangle?
Asked by Wiki User
How many lines of symmetry does an equilateral triangle have?
Does kite have rotational symmetry?
Asked by Wiki User
Answer
No. If the shape has rotational symmetry, then it should be able to match itself when rotated a certain number of degrees that IS NOT 360 degrees.
Why?
Well, if we stop and think about it, all shapes can match themselves when being rotated 360 degrees (a full circle.) If 360 degrees was valid and qualified for rotational symmetry, then any shape would have rotational symmetry. Then this classification of rotational symmetry would have no real conclusion.
The only way a kite can match itself when rotating is if you rotate it 360 degrees. Therefore, it does not have rotational symmetry.
What is 4379821 to the nearest hundred?
Asked by Wiki User
4,379,800
Look at the first digit after the hundreds digit (the '2'). If it is 5 or more, add one to the previous digit (the '8'); if it is 4 or less, leave the previous digit alone (this is the case here). Replace the the '2' and any digits after it by zeros.
What 5 numbers have a mode of 6 and a median of 8?
Asked by Wiki User
6, 6, 8, 9 and 5436897
6, 6, 8, 9 and 5436897
6, 6, 8, 9 and 5436897
6, 6, 8, 9 and 5436897
What is the slope of the line that contains the points 1 1 and 3 15?
Asked by Wiki User
Points: (1, 1) and (3, 15)
Slope: 7
What plus 82 equals 180?
Asked by Wiki User
Looking at this as an algebra equation, x + 82 = 180, all you need to do is isolate x. To do this, subtract 82 from both sides of the equation to get x = 98.
What is 5ab squared?
Asked by Wiki User
(5ab)2 = 25a2b2 (provided a and b are elements of a commutative group).
What is the area of a triangle with base 2cm and height 5cm?
Asked by Wiki User
What is the area of a triangle with base 2cm and height 3cm
What is the area of a triangle with base 2cm and 5cm?
Asked by Wiki User
Area of a triangle = 0.5*base*height
What is the degree measure of an angle that is congruent to 48 degrees?
Asked by Wiki User
48 degrees
Is it true or false that the absolute value of a number always a positive number?
Asked by Wiki User
It is true. Look at absolute value as a number's distance from zero, and distance can't be negative. Take, say, -7. -7 is 7 away from 0, so the absolute value of -7 is 7.
How do you write the equation for each hyperbola in standard form when the equation is y2-3x2 plus 6x plus 6y equals 18?
Asked by Wiki User
y2-3x2+6x+6y= 18 is in standard form.
The vertex form would be (y+3)2/24 - (x-1)2/8 = 1
What is 10 to the power of 9 in million?
Asked by Wiki User
10 to the power of 9 equals 1,000 million.
How many degrees are in an acute angle?
Asked by Wiki User
An acute angle is between zero and ninety degrees.
