The volume of the tank is (70 cm)³ = 343,000 cm³.
Now,
1 mL = 1 cm³
1 L = 1000 mL
so we convert the given rate to
Then the time it will take to fill up the tank is
Answer:
2^4 = (2 x 2) x (2 x 2) = 4 x 4 = 16
Step-by-step explanation:
Q 4
we know that a pie chart is a circle
we know that a circle is 360 degrees
so we multiply 7/10 with 360 and get the degrees
252 degrees
off topic, question 3 is wrong because if you want to round to 1 sig fig, you would look at the 100ths place to round to the 10th's place so 0.000 (disregard the 9 because it's too far away) rounded up =0
I'll do problem 13 to get you started.
The expression is the same as
Then we can do a bit of algebra like so to change that n into n-1
This is so we can get the expression in a(r)^(n-1) form
- a = 8/7 is the first term of the geometric sequence
- r = 2/7 is the common ratio
Note that -1 < 2/7 < 1, which satisfies the condition that -1 < r < 1. This means the infinite sum converges to some single finite value (rather than diverge to positive or negative infinity).
We'll plug those a and r values into the infinite geometric sum formula below
S = a/(1-r)
S = (8/7)/(1 - 2/7)
S = (8/7)/(5/7)
S = (8/7)*(7/5)
S = 8/5
S = 1.6
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Answer in fraction form = 8/5
Answer in decimal form = 1.6