It would be written as a fraction to make the exponent negative put it over one : 1/7^4
<span>x2</span><span> + </span>4x<span> = </span>5<span>. </span><span>x2</span><span> + </span>4x<span> = </span>5<span>. </span><span>x2</span><span> + </span>4x<span> – </span>5<span> = 0
I think, but I may be wrong.</span>
Answer:
True the triangle is a right triangle.
Step-by-step explanation:
the Pythagorean Theorem states that 
so,
-10(s + 1) = -87
The same way you do positive numbers, you do negative number. Multiply whatever is in the parenthesis by what's on the outside, which in this case is -10. So:
-10*s + -10*1 = -87
-10s + -10 = -87
To solve, first add -10 to both sides
-10s = -77
next, divide both sides by -10
s = 7.7
To check the answer, plug the solution into the original equation
-10(s+1) = -87
-10(7.7 + 1) = -87
-10(8.7) = -87
-87 = -87
(for the first one, is there a variable involved?)
