Answer:
27pi in^3
Step-by-step explanation:
the volume for a cone is (1/3)pi*r^2*h. r=3in, h=9in. so the volume is (1/3)*pi*3^2*9=27pi
Answer:
with wat there is no pitcure
Step-by-step explanation:
Answer:
39
Step-by-step explanation:
<u>Data</u>
- standard deviation (sd) = 2
The z-score is computed as follows:
z = (x - mean)/sd
where x is a value of interest, in this case, the missing data value. Replacing with data and solving for x:
-2.1 = (x - 43)/2
-2.1*2 + 43 = x
39 = x
Let be "n" the number mentioned in the exercise.
You need to remember that:
1. In Math word problems:
- The word "times" means multiplication.
- The word "twice" indicates that something is multiplied by 2.
- "Sum" is the result of an Addition.
2. In inequalities, "Less than" is represented with the following symbol:
Then, based on the above, you know that "3 times a number" can be expressed as:
And "Twice the same number":
Therefore, "The sum of 3 times a number and twice the same number is less than 45" can be represented with the following inequality:
The answer is: Option a.
DAN is right for this question. Hope this helps