chauntkm9
27.08.2020 •
Mathematics
3
Question 15 (1 point)
A pizza is cut into 8 equal slices, and the pizza has a radius of 10 inches. Find the
area of 1 slice of pizza.
80 in2
9
400 in
11
12
78.54 in
14
15
39.27 in
17
Question 16 (1 point)
Evaluate sin (9)
Solved
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Ответ:
-5x + 3y = 10 ⇒ -40x + 24y = 80
67x = -134
67 67
x = -2
27x + 24y = -54
27(-2) + 25y = -54
-54 + 25y = -54
+ 54 + 54
25y = 0
25 25
y = 0
(x, y) = (-2, 0)