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What is the sum of three consecutive whole numbers?
x + x + 1 + x + 2 = 3x + 3 = 3 times the middle number
How do you write an algebraic expression four times the sum of a number and its square?
4(x)2
Why does the area of 70 times 30 equal 2100 but the area of 50 times 50 equal 2500 square feet?
If you have two pairs of numbers whose sum is the same, their product increases as the two numbers get nearer to half the sum. The product is a maximum at that value. 70 * 30 = (50+20)*(50-20) The right hand side is the factorisation of the difference of two squares, and can be shown to be equal to 502 - 202 Since 202 must be positive (it is a square), 70*30 must be less. For all values of x, (50+x)*(50-x) is less than or equal to 50*50=2500 with equality attained only when x = 0.
How could you represent the following expression in algebraic terms x times the sum of 9 and x?
x times the sum of x and 9 x times (x times 9) x(9x) 9 times x[squared] 9x[squared]
What is the sum of the first x odd numbers?
This depends on what "x" is. The sum of the first x odd numbers is equal to x^2 or x*x.
What does the square root of X times three squared times the sum of pi equal?
It looks like this:√x (2)3 · Σ πIt equals:i 8 sum Pi.
6 divided by the sum of 4 times x and 5 times k?
6 divided by the sum of 4 times x and 5 times k is equal to 6 times the reciprocal of (4x + 5k).
What is the sum of three consecutive whole numbers?
x + x + 1 + x + 2 = 3x + 3 = 3 times the middle number
Twice divided by the cube of the sum of x and 2?
Twice divided by the cube of the sum of x and 2 is equal to 2 times the reciprocal of ((x + 2) cubed)).
What number is equal to 27 times the sum of 18518 and 185199?
27 x (18,518 plus 185,199) is equal to 5,500,359.
How does x squared times the square root of y equal square root of x squared times y?
That can be true when "x" and "y" are both zero, or both 1.
How do you write an algebraic expression four times the sum of a number and its square?
4(x)2
What is the The sum of six times a number and four is equal to 5 times a number?
6x + 4 = 5x x = -4
What is The sum of eight times a number and 1 is equal to seven times the number.?
Let the number be x and so if 8x +1 = 7x then x = -1
The sum of a number and fourteen is less than or equal to three times the number?
X+14 ≤ 3x
Can the square root of x be added to the square root of 3x?
No. The Square root of x is not the value of x. So it can not be simplified beyond: Root X + root 3x Yes. The square root of 3x equals the square root of 3 times the square root of x, so when you add another square root of x, you can factor out the square root of x, thereby simplifying the expression to the square root of x times the sum of one plus the square root of three.
Why does the area of 70 times 30 equal 2100 but the area of 50 times 50 equal 2500 square feet?
If you have two pairs of numbers whose sum is the same, their product increases as the two numbers get nearer to half the sum. The product is a maximum at that value. 70 * 30 = (50+20)*(50-20) The right hand side is the factorisation of the difference of two squares, and can be shown to be equal to 502 - 202 Since 202 must be positive (it is a square), 70*30 must be less. For all values of x, (50+x)*(50-x) is less than or equal to 50*50=2500 with equality attained only when x = 0.
