9a + 5b + 5c = 9
Multiplying the whole equation by -2.
-18a - 10b - 10c = -18.
Hence, the answer is -18.
Answer:
I believe it would be the first and the second
Step-by-step explanation:
Trees would be competing to get the sunlight, deer would be competing for mating reasons.
The triangle angle sum theorem states that the 3 angles in the triangle must equal 180 degrees.
The perimeter of the shaded region is 8π cm and the area of the shaded region is 32(π - 2) cm² or 36.53 square cm.
<h3>What is a circle?</h3>
It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
We have shown a square in which a one-fourth circle is shown and making an ellipse.
The perimeter of the circle = 2πr = 2π(8) = 16π cm
The perimeter of the one-fourth is circle = (16π)/4 = 4π cm
The perimeter of 2 one-fourth circle = 2(4π) = 8π cm
The area of the one-fourth circle = (1/4)πr² = (1/4)π(8)² = 16π square cm
The area of the right-angle triangle = (1/2)(8)(8) = 32 square cm
The area of the shaded region = 2(16π - 32) = 36.53 square cm
or
= 32(π - 2)cm²
Thus, the perimeter of the shaded region is 8π cm and the area of the shaded region is 32(π - 2) cm² or 36.53 square cm.
Learn more about circle here:
brainly.com/question/11833983
#SPJ1
Answer:
2827.433
Step-by-step explanation:
First start with the volume of a sphere and use the given volume to solve for the radius r.
So the radius of this sphere is 15 inches.
Now we use this radius to find the surface area
And then you get 2827.433
