Answer:
42.6cm
Step-by-step explanation:
The sum total of all the sides of the shape is the perimeter of the shape. Hence;
Perimeter = x+3 + 4 + x+9 + 2x+5
Perimeter = 4x + 21
Given
Area of the figure = 75cm^2
Area = (x+3)(2x+5) + (2x+1)(6)
75 = 2x²+5x+6x+15+12x+6
75 = 2x²+23x+21
2x²+23x+21-75 = 0
2x²+23x-54 = 0
x = -23±√23²-4(2)(-75)/4
x = -23±√529+600/4
x = -12±√1129/4
x = -12+33.6/4
x = 21.6/4
x = 5.4
Recall that;
Perimeter = 4x+21
Perimeter = 4(5.4) + 21
Perimeter = 21.6+21
Perimeter = 42.6cm
Hence the perimeter is 42.6cm
Answer:
b. y= -4(x-3)^2+4
Step-by-step explanation:
BECAUSE I DID THIS BEFORE AND THE TEACHA TOLD ME THE RIGHT ANSWER! ITS CORRECT TRUST MEEEE
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<u><em>FR THOO</em></u>
Answer:
12x + 4x + 20
4(3x + x + 5)
4(4x+5)
Step-by-step explanation:
29
2x29=58-3 =55
3-2x (x=29) =55
29x2=58-3
Working conditions in the United States in the early 1900’s can best be described as atrocious.
