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How can you use 2×8 to find 4×8
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JudyYou double the product of 2x8.
2x8 equals 16. 16 doubled which equal 16x2 equals 32.
4x8 equals 32.
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What is X-2 plus 4 equals -8?
x-2+4=-8 x+2=-8 x=-10
Can 2 be a multiple of 8?
No, 8 is a multiple of 2, since it is 4 x2, but 2 is less than 8 so it can't be a multiple.
What kind of a number is 64?
Sixty-four is several kinds of number. It is an even number It is a two-digit number It is a square number - the second power of 8 -> 8 * 8 = 64 It is a cubic number - the third power of 4 -> 4 * 4 * 4 = 64 It is a 6th power number - the sixth power of 2 -> 2 * 2 * 2 * 2 * 2 * 2 = 64 It is a superperfect number
What is a solution to these equations X plus Y equals -8 and 2x - y equals 4?
x+y=-8 2x-y=4 y=-x-8 2x+x+8=4 3x=-4 x=-4/3 -4/3 + y= -8 y = -8 + 4/3 y= -6 2/3
What are the 2 solutions for x if 3x2 plus 2x-8 equals 0?
3x2+2x-8=0 Delta = 22-4*3*-8= 100 So x = (-2 + sqrt(100))/(2*3) or x = (-2 - sqrt(100))/(2*3) x = 4/3 or x=-2
