Can someone help me out

40

Step-by-step explanation:

Surface area is the sum of the faces of all sides, so find the area of all sides and add

40 mi²

Step-by-step explanation:

(see attached for reference)

the formula for surface area of a right rectangular prism

= 2(length x width) + 2(width x height) x 2(length x height)

in our case

length = 4 mi

width = 2 mi

height = 2 mi

substituting these values into the equation:

surface area

= 2(length x width) + 2(width x height) x 2(length x height)

=2(4)(2) + 2(2)(2) x 2(4)(2)

= 16 + 8 + 16

= 40 mi²

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.