All categories

3 years ago

Please help! I can give brainliest also! Thank you!

Mathematics

1 answer:

Pie3 years ago

8 0

9514 1404 393

Answer:

a) n(A∪B) = 20

b) n(A) = 31

Step-by-step explanation:

The relevant formula is ...

n(A∪B) = n(A) +n(B) -n(A∩B)

a) n(A∪B) = 5 +18 -3 = 20

b) 32 = n(A) +14 -13 ⇒ n(A) = 31

You might be interested in

What is true about angle ∠APD?

Stolb23 [73]

Answer:

HEY MATE FIRST OF ALL THE QUESTION IS NOT COMPLETE. TRY MAKING IT MORE CLEAR NEXT TIME !

Step-by-step explanation:

IF THE QUESTION IS THIS IN THE BELOW THEN HERE IS THE ANSWER .

What is true about angle ∠APD?

It is to angle Angle A P C.

It is to angle Angle C P B.

SOLUTION :

Answer: It is supplementary to angle Angle A P C.

It is vertical to angle Angle C P B.

I hope this help :)

4 0

3 years ago

Find the missing exponent. I really need help with this question<br><br> 1/169=(1/13)?<br><br> ? =

Kisachek [45]

The answer for thi question is 2

6 0

3 years ago

Estimate then find the sum 63,824+29,452

ASHA 777 [7]

90,000 becuase 63,824 is rounded down to 60,000 and 29,452 is rounded up to 30,000. 60,000+30,000 is 90,000

3 0

3 years ago

Three angles of a hexagon are congruent. The other three angles are also congruent, each with a measure twice that of the first

Serga [27]

The sum of the interior angles of a hexagon is 720 degrees. If 3 angles are congruent, each with measure x degrees, and the other 3 angles are also congruent to each other, each with measure 2x degrees, then the total sum of all 6 angles would be 3x + 3(2x) = 9x. If this is equal to 720, then x = 80 degrees, while 2x = 160 degrees.
Therefore, there are 3 80-degree angles and 3 160-degree angles.

3 0

3 years ago

A rancher wishes to build a fence to enclose a rectangular pen having area 24 square yards. Along one side the fence is to be ma

Gnoma [55]

Answer:

The value is $C \approx \$76$

Step-by-step explanation:

From the question we are told that

The area of the rectangular pen is $A = 24 \ yard^2$

The cost of material used to make one side is $z = \$ 6$

The cost of material used to make the other sides is $r = \$ 3$

Now , the fence to be build around the rectangular pen has four sides, the first opposite sides are equal, let assume each of the to be x yard and the other opposite sides are also equal as well let assume of the to be y yard

So the cost is mathematically represented as

$C = zx + r (x + 2y )$