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goldfiish [28.3K]
3 years ago
8

Garrett must inspect a bridge that goes over a river. He begins 18 feet above water level to inspect the lighting, descends 32 f

eet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base. Which best represents Garrett’s position with respect to the water level?
Mathematics
2 answers:
mart [117]3 years ago
3 0

Answer:

-18

Step-by-step explanation:if he is at 18 feet up than he drops 32 feet than he goes 4 feet down than he is at -18 feet

elena-14-01-66 [18.8K]3 years ago
3 0
The answer will be -18
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lilavasa [31]

Answer: if there had been no current, the rate would have been 4 km/hr.

The rate of the current is 1.5km/hr

Step-by-step explanation:

Let x represent the speed of the boat in still water.

Let y represent the speed of the current.

Impeded by the current the outing club took 4 hours and 24 minutes(4 + 24/60 = 4.4 hours) to paddle 11 km up the exeter river to their campsite last weekend. This means that the total speed with which they travelled is (x - y) km/h

Distance = speed × time. Therefore

11 = 4.4(x - y)

Dividing through by 4.4, it becomes

2.5 = x - y - - - - - - - - - - -1

The next day the same current was with them and it took only 2 hours to make the return trip to campus. This means that the total speed with which they travelled is (x + y) km/h. The distance travelled is

11 = 2(x + y)

Dividing through by 2, it becomes

5.5 = x + y - - - - - - - - - - -2

Adding equation 1 to equation 2, it becomes

8 = 2x

x = 8/2 = 4

Substituting x = 4 into equation 1, it becomes

2.5 = 4 - y

y = 4 - 2.5

y = 1.5

3 0
3 years ago
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Pi = 3.142

5^2 x 3.142 = 78.55

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3 years ago
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Answer:

x =8.34654305

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

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cos 33 = 7/x

Switching places with the x and the 33

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3 years ago
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Rina8888 [55]

Answer:

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4 0
3 years ago
The area of these shapes are?
kipiarov [429]
Answer:
Figure 1:
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