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Tema [17]
4 years ago
13

If a 10.0-ft waterwheel (see Figure 1.42) is rotating.

Mathematics
1 answer:
Studentka2010 [4]4 years ago
3 0

Sounds like 10.0 ft refers to the height/diameter of the wheel, in which case its radius is 5.0 ft.

In one complete revolution, a point on the edge of the wheel travels 2π*(5.0 ft) = 10π ft, so the point's linear speed (and thus the current's speed) is

(5.0 rev/min) * (10π ft/rev) = 50π ft/min

Convert this to mi/h using

1 mi = 5280 ft

1 h = 60 min

==>  (50π ft/min) * (1/5280 mi/ft) * (60 min/hr) = 1.8 mi/h

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Logy<br>6.<br>If log2<br>logz<br>then x2 =<br>5<br>2<br>3<br>a) 1<br>b) )xy<br>c) Vyz<br>d) Vzx​
blondinia [14]

Answer:

idk why you got it like that

8 0
3 years ago
At the holiday valley ski resort, skis cost $16 to rent and snowboards cost $19. If 28 people rented on a certain day and the re
trapecia [35]

Answer:

18 skis and 10 snowboards were rented.

Step-by-step explanation:

Let the number of skis rented be x and the number of snowboards rented be y.


If a total of 28 people rented on a certain day, then the total number of skis and snowboards rented that particular day is also 28.


This gives us the equation

x+y=28...eqn(1).

If skis cost $ 16, then x number of skis cost $ 16x.


If snowboards cost $ 19, then y number of snowboards cost $ 19y.


The total cost will give us another equation,

16x+19y=478...eqn(2)


From equation (1),

y=28-x...eqn(3).


We put equation (3) into equation (2) to get,


16x+19(28-x)=478


We expand the brackets to obtain,

16x+532-19x=478


We group like terms to get,

16x-19x=478-532

This implies that,

-3x=-54


We divide both sides by -3 to get,


x=18

We put x=18 into equation (3) to get,


y=28-18


y=10


Therefore 18 skis and 10 snowboards were rented.




7 0
4 years ago
Whats the mean of the data set <br>86,90,93,85,79,92​
k0ka [10]

Answer:

87.5

you need to add all the numbers and the divide it by the sum of values

4 0
3 years ago
Sarawong is carrying six pages of math homework and four pages of english homework. a gust of wind blows the pages out of his ha
Eduardwww [97]
The sample space of the experiment (i.e. the total number of ways he can pick 7 random pages out of a total of 6 + 4 = 10 pages) is given by:

^{10}C_7=120

If he picks at least 5 pages of maths homework, this means that he either picked 5 pages or 6 pages of maths homework.

The number of ways he can pick 5 or 6 maths homework is given by:

^6C_5+{ ^6C_6}=6\times1=6

Therefore, the probability that he recovers at least 5 pages of his math homework is given by:

\frac{6}{120} = \frac{1}{20}
5 0
3 years ago
What will the slope of a horizontal line always be
gavmur [86]

Answer:

negative

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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