Answer:
1 : 9
Step-by-step explanation:
Given 2 similar figures with sides in ratio a : b , then
ratio of areas = a² : b²
Here the ratio of sides = 1 : 3 , thus
ratio of areas = 1² : 3² = 1 : 9
She went 3.5 feet per second down for 90 seconds
3.5*90 = 315 feet below
2.2*30 = 66 feet up
315-66 = 249 feet below.
So, she must go up at 4.8 feet per second.
249/4.8 = 51.875 seconds
52 seconds when rounded
Answer:
A(9) = -52
Step-by-step explanation:
The given sequence is :
A(n)=-4 -6(n-1)
We need to find the 9th term of the above sequence.
To find it, put n = 9 in the above sequence.
A(9) = -4 -6(9-1)
= -4-6(8)
= -4-48
= -52
Hence, the 9th term of the sequence is -52.
Answer:
16
Step-by-step explanation:
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