Pi x r2 x h
Pi x r² x h
1 circular mil = 1 mil x 1 mil a=d2 so if a wire has a diameter of 80 mils, it has an area of 6400 circular mils.
"At least" is expressed with the "greater or equal" sign, for example, x >= 100. (I don't know how to draw the greater-or-equal sign here - it is a horizontal line beneath the greater sign).
It means you manipulate the equation in such a way that "y" is alone to the left of the equal sign, and everything else (including "x") is to the right.
Railroad Crossing
An advance railroad sign is round and has a yellow background with a black X and black R's on each side of the X. The sign at the site of the tracks is an X shaped sign that is white with black text and says "Railroad Crossing" with the words crossed on each leg of the X. Crossbuck.Read more: What_is_the_color_and_shape_of_a_US_Railroad_Sign
railroad crossing
policemen Also, stop signs and traffic circles (or "roundabouts") - altho they don't stop traffic, they perform the same function. From @MunicipalSigns: A pedestrian crossing sign (especially in California). A School Crossing zone. A railway crossing zone (Circular yellow sign with "RR" and "X")
An advance railroad sign is round and has a yellow background with a black X and black R's on each side of the X. The sign at the site of the tracks is an X shaped sign that is white with black text and says "Railroad Crossing" with the words crossed on each leg of the X. Crossbuck.See the related link for a site with pictures of US traffic signs.
The "equals" means that you claim that whatever is on the left of the equal sign is the same as whatever is on the right of the equal sign. In this case, it is claimed that x is the same as x - a true claim.
The surface area of a circular based prism is (2pi x radius squared) + (2pi x radius x height)
X could be a sign for multiplication, or it could also be a variable. A variable is a letter representing a number.
Pi x r2 x h
Without an equality sign it would be difficult but if you mean x = 954x-2 then the value of x works out as 2/953.
It means you keep re-arranging the equation until it ends up in the form "x = " x is isolated on one side of the equals sign. On the other side of the equals sign will be an expression that might contain other variables but not x.
Pi x r² x h