Which of the following is the correct decimal placement for the product of 1.3 * 0.47?

A. 6.11

B. 0.611

C. 0.0611

D. 0.00611

Answer Explanation:

in the given problem, we use the calculator to find 1.3*0.47=0.611

Therefore, the Correct Answer is B.

Q #1: When the weights of the newborn babies are graphed, the distribution of weights is symmetric with the majority of weights centered around a single peak. Which of the following describes the shape of this distribution?

A. Uniform

B. Bell-shaped

C. Skewed right

D. Bimodal

Answer Explanation

Since the distribution is symmetric, the mean, mode, and median will all be equal. The shape of the distribution will be bell-shaped.
Q #2: One gallon of cleaning solution requires 6 oz of ammonia. If the maintenance department needs 120 gallons of solution to clean all of the floors, how much ammonia is needed?

A. 20 gallons

B. 720 gallons

C. 20 oz

D. 720 oz

Answer Explanation

we use given information to find how much ammonia is need to make the specified solution.

We are told, one gallon of cleaning solution requires 6 oz of ammonia. In other words, we can express this as:

1 gallon of solution6 oz of ammonia

Or

6 oz of ammonia1 gallon of solution

Since we are needed to find how much ammonia is needed, we use the second option to find how much ammonia is required by 120 gallons of solution.

From the above equation, gallon of solution will cancel, and oz of ammonia is left.

Therefore, the solution will require 720 oz of ammonia.
Q #3: A bucket can hold 3 L. How many ml can the bucket hold?

A. 3000 mL

B. 300 mL

C. 30 mL

D. 0.003 mL

Answer Explanation

to change L to mL we use the following options of interconversions:

Or

Since we are needed to change L to mL, use the second option.

Thus, a bucket can hold 3000 mL which is equal to 3 L.