9. The volume of a triangular prism is 30 cm. Each triangular face has an area of 4 cm. How long is the prism?
2 answers:
You might be interested in
Answer:
Length of the lake is 97.30 m
Step-by-step explanation:
We have given Caleb starts at one end of the lake and walk 95 m
So
And then he turns at an angle of 60°
So and then again walk 8 m
So
We have to fond the total length of the lake , that is d
Total length of the lake is given by
So length of the lake is 97.30 m
Notice that
13 - 9 = 4
17 - 13 = 4
so it's likely that each pair of consecutive terms in the sum differ by 4. This means the last term, 149, is equal to 9 plus some multiple of 4 :
149 = 9 + 4k
140 = 4k
k = 140/4
k = 35
This tells you there are 35 + 1 = 36 terms in the sum (since the first term is 9 plus 0 times 4, and the last term is 9 plus 35 times 4). Among the given options, only the first choice contains the same amount of terms.
Put another way, we have
but if we make the sum start at k = 1, we need to replace every instance of k with k - 1, and accordingly adjust the upper limit in the sum.
Answer:
Step-by-step explanation:
Out of the given options, is the only fraction that is improper. All other options are not improper. Therefore,
would not belong is the given group of fractions.
Hope this helps.