The question "how much space is inside a solid?" is actually asking about the volume of that solid.
The volume of a cone is given by
where h is the height of the cone, and r is its radius.
So, you only need to plug in the values:
Answer:
<em>Marika's calculation is correct</em>
Step-by-step explanation:
<em>Lori has erroneously identified a common ratio of the geometion sequence</em>
<em>one has to divide subsequent term by the preceding term as was correctly by Marika. so Marika's calculation is correct.</em>
<em>hope it helps...</em>
<em>have a great day !!!</em>
Okay, just break it up so you're not overwhelming yourself or anything :)
So here, do it in steps-
Let's do 5(3 + t) first:
Distribute the 5, or in non-mathematical terms, just multiply 5 by 3 and t. This will give you 15 + 5t.
Now onto -3(t + 1):
Again, just multiply -3 by t and 1. This will come out to: -3t - 3.
*Note: the 3 is negative because it's "MINUS 3" in the original equation and remember that any number times a negative, if it isn't negative itself, will turn out to be negative.... (aka "-" x "-" = "+" | "+" x "+" = "+" | "-" x "+" = "-")*
ANYWAY
Now just put both answer together and you get:
15 + 5t -3t - 3. You can only add and minus the LIKETERMS (which are the things that are the same) - in this case, the liketerms are 15 and -3 ,,,, AND 5t and -3t.
15 - 3 = 12
5t - 3t = 2t
12 + 2t is your final answer. Hope that helps! :)
Answer:
126mm
Step-by-step explanation:
To find the diameter of the circle = circumference divided by pi = 56.52/3.14=18mm.
There are 4 circles = 18mmx4=72mm
Add on the 3x strips = 72+(18x3) = 126mm.
Hope this helps
I think the answer is x = -4.
