Step-by-step explanation:
complete
it needs about 20 words to be able to send so i am just typing. I hope it helped you
When you subtract you are taking away a number but also when you distribute -1 to a number it will take away 1 (because it’s negative) :-) hope this made sense!
21 - 16.75 is 4.25. Do the problem on a calculator and you'll get it.
Answer:
8 in
Step-by-step explanation:
? = a
a² + b² = c²
a² + 15² = 17²
a² + 225 = 289
a² = 289 - 225
a² = 64

a = 8