Answer:
The volume of the solid is 
Step-by-step explanation:
1. Cylinder
For find the volume of a cylinder we use the next formula:
Then the volume of the cylinder is equal to 
2. Cones
For find the volume of a cone we use the next formula:
However there are two cones so we have to multiply the volume of one cone for two and we get the total volume for the cones which is 
3. Sum of the volumes
Finally we sum the volumes of the cylinder and the cones for get the final result
So approximating the result is 
For this case we have that by definition of trigonometric relations that the sine of an angle is equal to the opposite leg to the angle on the hypotenuse. That is to say:
Clearing the value of "a":
Rounding off we have:
17.7
Answer:
Option B
The five numbers can be represented by (2n+1), (2n+3), (2n+5), (2n+7), and (2n+9), where n is an integer.
<span>2n+9 = 15 </span>
<span>n = 3 </span>
<span>The third number is 2n+5 = 11</span>
Okay so Take a calculator and go down each row. Start with 2. Then shade those. Then move to 3 and go through each box that isn't shaded and so on and so fourth
Angles a, b, and c are all 60°. A triangle’s angles add up to 180, and if the triangle is equilateral, each angle must be 60 (180/3). Angle d is 120° because b and d form a supplementary angle (180°), so 180-60 is 120. Angle e and f and 30°. Angles c and e form complementary angles (90°), so 90-60=30. For f, if the triangle adds up to 180, 180-120-30 = f. The 120 comes from d and the 30 comes from e. This leaves f as 30.
