Answer:
[tex]c=\sqrt{130}\\[/tex]
Step-by-step explanation:
When we solve for this we should always remember this formula [tex]a^2+b^2=c^2[/tex] and since we already know a and b we can plug that in to find out what c could be but we won't actually solve it.
[tex]a^2+b^2=c^2\\7^2+9^2=c^2\\49+81=c^2\\130=c^2\\\sqrt{c^2}=\sqrt{130}\\c=\sqrt{130}[/tex]
So c would equal whatever the square root of 130 is.
