Formula for perimeter of a square: P = 4a
Formula for area of a square: A = a²
a is given as:
19
Plug this value for a into the above formulas to solve for perimeter and area.
P = 4a
P = 4(19)
P = 76
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A = a²
A = 19²
A = 361
Answer:
P = 76 units; A = 361 units².
I don’t know the answer but all you have to do is search “slope calculator”
Answer:
29°
Step-by-step explanation:
SMH sorry it wasnt 
Answer: Divide the first equation, −4x + 8y = 16, by 2
Step-by-step explanation:
D is a notation for differential. There is a d2 in your formula because in the numerator there are two differentials. The formula is thus the second derivative of a function with respect to two variables.
