Hep

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! :)

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14