In pythagoras's theorem, generally a is the shortest side, b is the second shortest and c is the hypotenuse:

. However, there is a problem. The questions aren't actually possible without using sine, cosine, and tangent (which are mathematical ratios if you didn't know). I can help you with this but it will take time explaining.
Answer:
We are given the expression:
Let us evaluate the expression step by step:
Step 1:
Power of a power: In this rule we multiply the powers 4 and (-5) in the numerator.
Step 2:
Quotient of power: Here we will subtract the power of denominator from numerator.
Step 3:
Negative exponent: Here we take reciprocal of what we got in step (2) , that will make the power positive.
Answer: We will use three rules as shown above .
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Step-by-step explanation:
D.) 800, u add 5 dollars interest rate every time u go up 100 dollars
<span>\int_c\vec f\cdot d\vec r, in two ways, directly and using stokes' theorem. the vector field \vec f = 5 y\vec i - 5 x\vec j and c is the boundary of s, the part of the surface z = 16 -x^2-y^2 above the xy-plane, oriented upward.</span>