A cylindrical tunnel is built using concrete blocks joined together to make a cuboid-like shape with dimensions xx xx 2x.

Which property of multiplication is shown below? if x = a + bi and y = c + di, x × y = y × x.

Weight is dependent on the gravitational force exerted on an object. in other word, in space, you would weigh nothing because there is no gravity. likewise, because the moon's gravitational pull is less than earth's object weigh less on the moon. in general, 1 pound on earth is equal to approximately 0.166 pounds on the moon, about how much, in pounds does he weight on earth? a) 21 b) 48 c) 175 d) 196

In two or more complete sentences, describe how you could model the following sum on a number line. in your answer, make sure to include the result of adding these two numbers together. -3.5 + 4.2