Answer:
Step-by-step explanation:
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Answer:
630 .18 feet tall is the gateway arch .
Step-by-step explanation:
As given
The angle of elevation from a park bench 778 feet from the base of the Gateway Arch in St. Louis, Missouri is 39 degrees.
Now by using the trignometric property

As diagram is given below .


CB = 778 feet


AB = 0.81 × 778
AB = 630 .18 feet
Therefore the 630 .18 feet tall is the gateway arch .
Answer:Adding 5% interest to an account yearly has the same effect as taking 105% of its current value every year (you're taking all of your money - 100% of it - and adding an extra 5%, getting you 100% + 5% = 105%). This means that, if we started with $1000, after the first year, we'd have
1000(1.05) = $1050
after the second, and third years
1000(1.05)(1.05) = 1000(1.05)² = $1102.50
1000(1.05)(1.05)(1.05) = 1000(1.05)³ ≈ $1157.62
We can see a pattern starting to emerge. The 1000 always stays the same since its our starting value, but the power of the 1.05 goes up by 1 every year. In general, if we call the current value of the account in dollars y and the number of years it's been in the account x, then we can write this pattern generally as
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
i) 3/8
ii) -2
Step-by-step explanation:
i) 1/2*3/2/(1/2+3/2)
3/4/2
3/4*1/2
3/8.
ii) 1/2+3/2 / 1/3-3/2
2/-1
-2.
Hope this helps :)