Answer:
y=-25x+225
Step-by-step explanation:
The slope is -25 and I think the y-intercept is 225.
Hope this helps.
Answer:
- The sum of the interior angles of the 15-gon
- Each interior angle of the regular polygon
Step-by-step explanation:
As we know that
In any convex polygon, if we may start at one vertex and draw the diagonals to all the other vertices, we would form triangles,
The number of triangles thus formed would always 2 LESS than the number of sides.
As
- The sum of measure of the angles of any triangle is 180°.
Thus,
The sum of the interior angles of the 15-gon will be:
Also
15-gon is regular, it means this total is shared in equal proportion among the 15 interior angles.
And
Each interior angle of the regular polygon will be:
Therefore, we conclude that:
- The sum of the interior angles of the 15-gon
- Each interior angle of the regular polygon
Keywords: regular polygon, 15-gon, triangle
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Answer:
a. x = 1.2, b. A = 32.1°
Step-by-step explanation:
1.41²-.75²=x²
a. x = 1.2
sin A = 0.75/1.41
b. A = 32.1°
1) The perimeter is the sum of the lengths of the straight edge (the diameter of the semicircle) and the length of the arc of the semicircle.
The circumference of a 4 ft circle is
π*diameter = π*4 ft ≈ 12.566 ft
The semicircle will have a length that is half that, 6.283 ft. When this length is added to the diameter, the perimeter is found to be
Perimeter = 4 ft + 6.283 ft ≈ 10.3 ft.
2) The area of a circle is given by the formula
A = (π/4)d²
For a diameter of 15 inches, the area is
A = (π/4)(15 in)² = 56.25π in²
A ≈ 176.7146 in²
The area of the circle is about 176.71 in².
Answer:
82%
Step-by-step explanation:
41+9 is 50(total marbles)
41/50 (blue/total) is 82%! :)