Step-by-step explanation:
3(a+4b)
3×a+3×4b=3a+12b
3a+12b=3a+12b
Answer: b=13.75
Step-by-step explanation:
Use Pythagorean theorem
a^2+b^2=c^2
We know c, the hypotenuse, because the hypotenuse is opposite the right angle. It is 17
We also know a, one of the legs. It is 10.
Plug the number we know into the formula
10^2+b^2=17^2
100+b*2=289
Subtract the 100 on both sides
b^2=189
Take the square root of both sides
b=13.7477271
Rounded to the nearest Hundredth,
b=13.75
Hope this helped! :)
