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Sidana [21]
3 years ago
12

ll the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hour

s. a How many hours would this job take if the number of workers decreased by factor of 2?
Mathematics
1 answer:
Cloud [144]3 years ago
8 0

Answer:

44 hours

Step-by-step explanation:

Decreasing the people by a factor of 2 means we have 3 people

The job takes 6* 22 = 132 people hours

When we decrease the people, it will take more hours

132 people hours = 3 people * t hours

Divide each side by 3

132/3 = 3t/3

44 = t

It will take 44 hours

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Work out m and c for the line:2y−4x=2
Alex73 [517]

Step-by-step explanation:

General equation : y = mx + c

2y - 4x = 2

2y = 4x + 2

y = 2x + 1

Therefore m = 2 and c = 1.

4 0
3 years ago
The height of the Eiffel Tower is 1050 feet. From the top, the angle of depression to a soccer ball on the ground is 20 degrees.
mihalych1998 [28]
Since the angle of depression from the Eiffel tower is congruent to the angle of elevation from the soccer ball, the angle of elevation from the soccer field is 20°

Now, we can use the trigonometric function tangent to find <span>the distance from the soccer ball to the base of the Eiffel Tower:
</span>tan( \alpha )= \frac{opposite.side}{adjacent.side}
tan(20)= \frac{1050}{a}
a= \frac{1050}{tan(20)}
a=2884.85
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We can conclude that </span><span>the distance from the soccer ball to the base of the Eiffel Tower is 2884.85 feet.</span>

3 0
3 years ago
Solve using the quadratic formula<br><br> x^2 - 8x - 84 = 0<br><br> Show all work
Yakvenalex [24]

Answer:

x²-8x-84

Using quadratic Formular -b±√b²-4ac/2a

--8±/8²-4×1×-84 /2×1

8±/64+336/2

8±/400/2

8±20/2

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28/2, -12/2

14,-6

8 0
2 years ago
Pls help this is due at 8am it’s currently 6:36am
harina [27]

Answer:

207

Step-by-step explanation:

1. False. 0 does not equal to 6. No answers.

2. False. x=0 means the answer is 0.

3. True.

4. False. 2 does not equal -2. No answers.

5. True.

Code: (6*6*6)-(3*3)=207

5 0
4 years ago
Read 2 more answers
I need help please with identifying functions
inn [45]

The correct answer is the third one.


Each x value (or domain) can only have one unique output. For example, if I had (2,7), then I could not have (2,14). If I had (3,15), then I could have (3,15) again, because they are the same point. If you need further explanation, just let me know. : )

7 0
4 years ago
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