1. Round 9.39 to the nearest whole number 2. what is the value of the expression 4^3+9 times 6

Mathematics

1 answer:

ehidna [41]2 years ago

4 0

Answer:

Step-by-step explanation:

1. The digits 39 are less than 50. Round 9.39 to 9 (nearest whole number).

2. 4^3+9 times 6 This is an order-of-operations problem. We must do exponentiation before multiplication and division, and addition and subtraction must follow multiplication and division.

4^3 = 64, so we have 64 + 9(6).

Must do multiplication before addition: 64 + 54 = 118

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The volume of the cylinder above is 2,314.25, and the radius of the base is 8.9 Find the volume of the cone.

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Answer: $771.41\ units^3$

Step-by-step explanation:

The missing figure is attached.

The volume of an oblique cylinders and the volume of a right cylinder can be found with this formula:

$V_{cy}=\pi r^2h$

Where "r" is the radius and "h" is the height.

The volume of an oblique cone and the volume of a right cone can be found with this formula:

$V_{co}=\frac{1}{3}\pi r^2h$

Where "r" is the radius and "h" is the height.

According to the information given in the exercise, you know that the volume of the cylinder and also the radius of the cylinder and the cone ,are the following:

$V_{cy}=2,314.25\ units^3\\\\r=8.9\ units$