Answer:
a=28
Step-by-step explanation:
use inverse operations
Keep your mom, you only have one. But anyway;
Use the Pythagorean Theorem: A^2 + B^2 = C^2
12^2 + 21^2 = C^2
144 + 441 = C^2
585 = C^2
square root of 585 = approximately 24.2
<span>twenty six</span> <span>hundredths would be the word form of 0.26 :)
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Answer:
The midpoint: -4
Step-by-step explanation:
To find the midpoint between two numbers, add them together and divide by 2.
-12 + 4 = -8
-8 ÷ 2 = -4
As one formula you can write this as:



∴ The midpoint is -4.