It's 154. The easiest way to multiply a number is to get it as close to a multiple of 10 as possible. In our case it's 20 x 7, which is 140. Then we have 2 x 7 which 14. 140 + 14 is 154.
As an example: If we do 24 x 90, we essentially have 20 x 90 which is 1800 and 4 x 90 which is 360. Therefore we have 2160.
Well, a negative times a negative is the same thing as a positive times a positive, so you can basically turn the equation into: 7 x 11 + 22 7 x 11 = 77 77 +22 = 99 So, -7 x -11 + 22 = 99 Hope this helped. :]
x-y = 6 -x-3y = 22 -4y = 28 y = -7 So by substituting: x = -1 and y = -7
43 * 24 * 7 * 4 * 22 * 72 . 64 * 16 * 7 * 4 * 4 * 49 = 5619712
3x-7 = 14x-29 29-7 = 14x-3x 22 = 11x x = 2 Hope that helps!!;)
(x + 7)2 = 5 x + 7 = ±√5 x + 7 - 7 = -7 ± √5 x = -7 ± √5
7 x 22 x 5 = 770
-29
22 x 7 = 154
3 x 7 = 21 2 x 11 = 22 because 3 x 7 = 21 2 x 11 = 22
22 x 3 x 7 = 84
4 - √28 = 4 - √(4 x 7) = 4 - √(22 x 7) As 4 = 22 and √(22 x 7) = 2√7, we can write :- 22 - 2√7 = 2(2 - √7)......which is the simplified expression.
circumference of a circle = pie times the diameter = 22/7 x diameter = 22/7 x 7 inches = 22 inches
252. 12 = 22 x 3 14 = 2 x 7 36 = 22 x 32 lcm = 22 x 32 x 7 = 252
50 = 2 x 52 28 = 22 x 7 LCM = 22 x 52 x 7 = 700
420 14 = 2 x 7 70 = 2 x 5 x 7 84 = 22 x 3 x 7 lcm = 22 x 3 x 5 x 7 = 420
196 = 2 * 2 * 7 * 7 = 22 * 72The prime factorization of 196 is: 2 x 2 x 7 x 7
22 / 7 x 90 = 282.85714