0
Add your answer:
Earn +20 pts
How much sand do you need for a 6 feet by 6 feet by 4 inches deep?
2/3 of a cubic yard = 6'x6'x4" 1 cubic yard = 9'x9'x4" 1/3 cubic yard = 3'x3'x4"
How do you factor x to the 8th power minus 1?
x8-1 becomes (x4 + 1) (x4 - 1) - perfect square and then (x4 + 1) (x2 - 1)(x2 + 1) - perfect square again. and then (x4 + 1)(x2 + 1)(x + 1)(x - 1) - perfect square again
What is the missing number in this pattern 6 12 48 96?
6 x2 12 x4 48 x2 96 x4 384
What is 24 divide x4 in tape diagram?
6
What is x when X4 plus 3x3 - x2 - 9x - 6 equals 0?
x4 + 3x3 - x2 - 9x - 6 = 0 x4 + x3 + 2x3 + 2x2 - 3x2 - 3x - 6x - 6 = 0 x3(x + 1) + 2x2(x + 1) - 3x(x + 1) - 6(x + 1) = 0 (x + 1)(x3 + 2x2 - 3x - 6) = 0 (x + 1)[x2(x + 2) - 3(x + 2)] = 0 (x + 1)(x + 2)(x2 - 3) = 0 So x + 1 = 0 so that x = -1 or x + 2 = 0 so that x = -2 or x2 - 3 = 0 so that x = +/- sqrt(3)
How much sand do you need for a 6 feet by 6 feet by 4 inches deep?
2/3 of a cubic yard = 6'x6'x4" 1 cubic yard = 9'x9'x4" 1/3 cubic yard = 3'x3'x4"
What size speakers do you need for a 2005 Chevy Silverado?
6''x4'' and 6 1/2''
What is the derivative of 1 divided by x3?
0.3333
What is 1 over 5 x 4?
1/(5x4) 1/20 (1/5)X4 4/5
What is x4 divided by the square root of x4?
1
What is the factor of X4 plus X2 - 42?
x4 + x2 - 42 Let x2 = t, so that x4 = t2 t2 + t - 42 since -42 = 7(-6) and 7 + (-6) = 1, then t2 + t - 42 = (t - 6)(t + 7) = (x2 - 6)(x2 + 7) By replacing t with x2. So we have, x4 + x2 - 42 = (x2 - 6)(x2 + 7) = [x2 - (square root of 6)2](x2 + 7) = (x - sq. root of 6 )(x + sq. root of 6)(x2 + 7)
How do you factor x to the 8th power minus 1?
x8-1 becomes (x4 + 1) (x4 - 1) - perfect square and then (x4 + 1) (x2 - 1)(x2 + 1) - perfect square again. and then (x4 + 1)(x2 + 1)(x + 1)(x - 1) - perfect square again
How do you solve the limit as x approaches zero of 1 over x minus 4 plus 1 over x plus 4 all over x?
Limx→0 [ 1 / (x - 4) + 1 / (x + 4) ] / x = Limx→0 1 / (x2 - 4x) + 1 / (x2 + 4x) = Limx→0 (x2 + 4x) / (x4 - 16x2) + (x2 - 4x) / (x4 - 16x2) = Limx→0 (x2 + 4x - 4x + x2) / (x4 - 16x2) = Limx→0 2x2 / (x4 - 16x2) = Limx→0 2 / (x2 - 16) = 2 / (0 - 16) = -1/8
What is the summation of cos x?
The infinite series is 1 - x2/2! + x4/4! - x6/6! + ...
What is the missing number in this pattern 6 12 48 96?
6 x2 12 x4 48 x2 96 x4 384
Factor of 1-x4?
1 - x4 = (1 - x2)(1 + x2) = (1 - x)(1 + x)(1 + x2) (difference of squares)
What is 3x-3 multiplied by x over 6 multiplied by x2-x?
(3x - 3)(x/6)(x2 - x)= (3)(x - 1)(x/6)(x)(x - 1) = (1/2)(x2)(x -1)2 = (1/2)(x2)(x2 - 2x + 1) = (1/2)x4 - x3 + (1/2)x2
