Answer:
what idu
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
This rectangle appears to have 7 boxes on the bottom, and 3 box for the side.
Since area is base×height
It would be 7×3
Part A: We know that the equation for finding the area of a triangle is

; we also know that

and

, so the only thing we need to do is replacing those values into our Area equation and solve for x:




Now the only thing left is factor the quadratic polynomial:

W can conclude that the area of our triangle is
Part B: Our polynomial has three terms, so is a trinomial; also, our polynoal only has one variable,

, and the largest exponent of that variable is 2; therefore is a degree 2 polynomial. In summary, we have a
trinomial of degree 2. Part C: Part A demonstrate the closure property of polynomials because after multiplying tow polynomials we obtained another polynomial.
Answer:

Step-by-step explanation:
The trigonometric form of complex numbers is when the complex number is in polar form.
This is given by

where the modulus r is given by



and the argument is given by



The trigonometric form then becomes:

Step-by-step explanation:
f(g(x))= 5(g(x))- 7 = 5(x+3) - 7 = 5x +8
g(f(x)) = f(x) +3 = 5x -7 +3= 5x -4