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jarptica [38.1K]
4 years ago
9

I can't seem to figure out the answer to #10. Any help? (Ignore my work)

Mathematics
1 answer:
sashaice [31]4 years ago
8 0
First I think you need to find the angle of the sector. Since it is one hour, and a clock has 12 hours, you would divide 360 by 12 to get 30.  then you would do this:
(30/360)(2)(pi)(16)
you would get 8.37758041
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64 A fisherman traveled in a boat from point N upstream. After having traveled 6 km, he stopped rowing and 2 hour 40 min after f
Leviafan [203]
Let c represent the speed of the current.

time = distance / speed

total time = time going upriver + time going downriver
2 2/3 = 6/(9 -c) + 6/c
(8/3)(c)(9 -c) = 6c +6(9 -c)
(8/3)c^2 -24c +54 = 0
c = (24 ± √((-24)^2 -4(8/3)(54)))/(2*8/3)
.. = (3/16)(24)
c = 4.5

The speed of the river's current is 4.5 km/h.

4 0
3 years ago
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vova2212 [387]

Idk what you r asking help

5 0
3 years ago
Please answer this correctly
11111nata11111 [884]

Answer:

option B

i.e 8u + 4

Step-by-step explanation:

3u+4+5u

= 8u + 4

8 0
3 years ago
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How much would you pay for a boat that costs $35,000 if you buy it on
icang [17]

Answer:

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Step-by-step explanation:

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dalvyx [7]
Answer: the fourth option; all the real values except x =  7 and the x for which f(x) = - 3

Explanation:

1) the composed function (g ° f) )x= is the application of the function g (x) to the function f(x), this is you first apply f(x) and then apply g(x): g [f(x) ]

2) So the domain is the set of values for which f(x) is defined and then those values of f(x) for which g(x) is defined.

3) The values of x for which f(x) is defined is all the real values except x =  7.

4) The values of f(x) for which g(x) is defined are all the values of f(x) except f(x) = - 3.

5) So, the domain of the composed function is all the real values except x =  7 and the x for which f(x) = - 3

6) Important remark: notice that there is an error in the statements listed, because saying that the domain is all the real values except x ≠ 7 and f(x) ≠ - 3 means that tha domain is only x = 7 and f(x) = - 3, when what they meant was that the composed function is not defined for x = 7 and f(x) = - 3 (this is a bad use of double negation which is a good expample of why double negation must be avoided).
6 0
3 years ago
Read 2 more answers
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