I believe that the answer is C, I don't know if it is addition or multiplication, but if is is addition, it would be 146, C
9514 1404 393
Answer:
51
Step-by-step explanation:
The rule gives the sequence ...
75, 69, 63, 57, 51, 45, ...
The 5th number in the sequence is 51.
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<em>Alternate solution</em>
The equation for the general term of an arithmetic sequence is ...
an = a1 +d(n -1) . . . . . for first term a1 and common difference d
Your sequence has first term 75 and common difference -6, so the equation is ...
an = 75 -6(n -1)
Then for n=5, the term is ...
a5 = 75 -6(5 -4) = 75 -24 = 51
The 5th term is 51.
The GCF of both numbers is 9. So 9 goes outside the parentheses. The numbers multiplied by the GCF to get 36 and 45 are 3 and 5. The answer is 9 ( 3 + 5 )
We know that
[surface area]=2*[area of the base]+[perimeter of the base]*height
area of the base=15*13----> 195 in²
perimeter of the base=2*[15+13]----> 56 in
height=7 in
so
[surface area]=2*[195]+[56]*7-----> 782 in²
the answer is
782 in²
Answer:
11.4
Step-by-step explanation:
You have to use the Pythagorean theorem: c = √(a² + b²)
√(7² + 9²) ≈ 11.4
