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Papessa [141]
3 years ago
7

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

rs. How many hours would this job take if the number of workers: increased 4 times
Mathematics
2 answers:
marishachu [46]3 years ago
5 0
It would be 12 hours. 

wariber [46]3 years ago
4 0

It is 5/66 of an hour

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Thanks guys for all the help :)
ale4655 [162]

Answer:

(2,  6) .

Step-by-step explanation:

The point A has coordinates (5, 9) and B  has coordinates (-1, 3).

The midpoint is (5 + -1)/2 ,  (9 + 3)/2.

= (2,  6) Answer.

5 0
3 years ago
A child is laying on the ground relaxing and looking up at a plane that is passing by. If the plane’s altitude is 33,500 feet an
murzikaleks [220]

Answer:

  about 76.2°

Step-by-step explanation:

The geometry can be modeled by a right triangle with the given dimensions being the side opposite the angle (height = 33,500 ft) and the side adjacent to the angle (8,200 ft). The fact that you know these two sides suggests the inverse of the tangent function may be useful.

  Tan = Opposite/Adjacent

  tan(angle) = (33,500/8,200)

  angle = arctan (335/82) ≈ 76.246°

The angle of elevation is about 76.2°.

3 0
3 years ago
Find the indicated value. Use either half angle formulas or sum and difference formulas.
MrMuchimi
By the angle difference formula for sines, we have:

\sin 15^\circ = \sin 45^\circ \cos 30^\circ - \sin 30^\circ \cos 45^\circ = \frac{sqrt{6}}{4} - \frac{sqrt{2}}{4} = \frac{\sqrt{6} - \sqrt{2}}{4}.

By the angle sum formula for tangents, we have:

\tan 75^\circ = \frac{\tan 45^\circ + \tan 30^\circ}{1 - \tan 45^\circ \tan 30^\circ} = \frac{1+\frac{\sqrt{3}}{3}}{1 - \frac{\sqrt{3}}{3}} = \frac{3 + \sqrt{3}}{3 - \sqrt{3}}.

Rationalizing the denominator gives \frac{12+6\sqrt{3}}{6} = 2+\sqrt{3} as the final answer.
8 0
4 years ago
Which point on the line number line represntes -1/3​
OverLord2011 [107]

Answer:

Point C

Happy Holidays!

5 0
3 years ago
Read 2 more answers
Fill in the missing numbers to complete the Sequence below. 1, 2, 3, 7,-, 24,-.​
vivado [14]

The missing numbers are 13 and 50

<h3>How to determine the numbers</h3>

Given the numbers;

1, 2, 3, 7, -, 24, -.

Find the numbers by preceding numbers together, thus;

1 + 1 =2

1 + 2 = 3

1 + 2 + 3 = 7

1 + 2 + 3 + 7 = 13

1 + 2 + 3 + 7 + 13 + 24 = 50

Thus, the missing numbers are 13 and 50

Learn more about missing numbers here:

https://brainly.in/question/11758850

#SPJ1

7 0
2 years ago
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