True or false: define event A = {1,2,3,4} and event B = {2,3,6,7}. A u B = {2,3}

If A = {1,2,3,4} and B = {2,3,6,7}.

then, A u B = {2,3} is false

The union of two sets A and B is a set containing the elements in set A or B.

The given sets are:

A  =   {1,2,3,4}

B = {2,3,6,7}

A u B is the set of elements in A or B

Therefore, A u B = {1, 2, 3, 4, 6, 7}

Note that:

A ∩ B = {2, 3}, it is not A u B

Therefore, A u B = {2,3} is false

Learn more on union of sets here: link

Im pretty sure its True

Step-by-step explanation:

sorry if this doesnt help :(

have a great day :)

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%