Thirty-three cities were researched to determine whether they had a professional sports team a symphony, or a children's museum of these cities, 20 had a professional sports team 16 had a symphony, 17 had a children's museum, 13 had a professional sports team and a symphony, 10 had a professional sports team and
a children's museum, 9 had a symphony and a children's museum and 7 had all three activities. Complete parts a) through e) below.
a) How many of the cities surveyed had only a professional sports team?
(Simplify your answer)
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a
nd

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!

the answer is  

d.

21

i did this one. so you should get it right.

c and e

step-by-step explanation: c and e seem the most probable because a number less than 2 on a spinner with 4 equal sections would be 25% and e because all of the stacks contain 13 of that card.