Q: What 2 numbers add up to 80 that is a square number?

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16 and 64

(8²)64 + (4²)16 = 80

No, there aren't any square numbers between 70 and 80. From 70 to 80, no number has a perfect square root, so no square number exists between 70 to 80.

78. add up all the numbers and then divide by the number of numbers you added.

80 + 0 = 80. 79 + 1 = 80 78 + 2 = 80. Just continue with that pattern, subtract one from the first number and add one to the second number. 77 + 3 = 80.

Infinitely many, since every number in that range is a square of some other number. There are 7 perfect square numbers.

20

30 squared is 900 = 302 80 squared is 6400= 802 add these together and you get 7300 so your answer is 30 and 80

80

No, 80 is a not perfect square.

16 and 64. 16 is 4 squared. 64 is 8 squared.

A negative number cannot have a square root in basic mathematics. However, in more advanced mathematics, you will study complex numbers. And there you will find that the square roots of -80 are Â± 8.944*i where i is the imaginary square root of -1.Incidentally, Â± 8.944 are the square roots of +80.

No but 81 is a square number

Those two numbers would be 80 and 40. 80*40=3200 80+40=120

82

They can be: 73+7 = 80

8.94427191

38

51 + 29 = 80

There are an infinite number of sets with mean 80. Here are some: {80, 80, 80}, {80, 80, 80, 80, 80, 80} {79, 80, 81}, {79, 79, 80, 81, 81}, {79, 79, 80, 82} (1, 80, 159}, {-40, 200} To produce a set of n numbers with mean 80, start with any set of n-1 numbers. Suppose their sum is S. Then add the number 80*n-S to the set. You will now have n numbers whose sum is S+80*n-S = 80*n So the mean of this set is 80.

No.

you add all of the numbers in the group together and then divide the number you get by how many numbers are in the group EX: your group is 21, 32, 12, 15. you add 21+32+12+15= 80. then you divide 80 by 4 because you have four numbers in your group. so your mean is 20!

They can be: 144-64 = 80

Compatible numbers are numbers that are close in value to the actual numbers and easy to add, subtract, multiply, or divide mentally.So a logical compatible number for 77 would be 80.

80 is not a square number 1 is, 4 is, 9 is, 16 is, 25 is, 36 is, 49 is, 64 is, 81 is, 100 is 80 is not