<span>12x-4y=-8
y=3x+2 can sub for y in the first equation: 12x - 4(3x+2) = -8
Then 12x - 12x - 8 = - 8
This is true for all x, so there are infinitely many sol'ns.
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Find the first semicircle area
Area semicircle can be determined by dividing the full area of circle by 2.
The first semicircle radius is 5 cm
semicircle area = 1/2 circle area
semicircle area = 1/2 × π × r²
semicircle area = 1/2 × 3.14 × 5²
semicircle area = 1/2 × 3.14 × 25
semicircle area = 39.25 cm²
Find the second semicircle area
Because the dimension of the second semicircle is congruent to the first semicircle, they have similar area measurement, 39.25 cm².
Find the quarter circle area
The area of quarter circle can be determined by dividing the full area of a circle by 4.
q circle = 1/4 × area of circle
q circle = 1/4 × π × r²
q circle = 1/4 × 3.14 × 10²
q circle = 1/4 × 314
q circle = 78.5 cm²
To find the entire area, add the area above together
area = first semicircle + second semicircle + q circle
area = 39.25 + 39.25 + 78.5
area = 157
The area of shaded region is 157 cm²
Answer:
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Step-by-step explanation:
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Answer:
you can!!
Step-by-step explanation:
you can break this apart into whole numbers and its fractional part.
-20+-12= -32
-3/4 + -1.4 = -1
-32 + -1
=-33
