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Vinil7 [7]
3 years ago
9

For a two way frequency tables the variables can be found

Mathematics
1 answer:
34kurt3 years ago
3 0

Answer: C. Along the rows and columns .

Step-by-step explanation:

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Number 1. Based on the marks, what can you assume to be true in each figure?
lakkis [162]
These marks are used in geometry to symbolize congruence. If two sides or two angles are congruent, they are assigned with the same symbol.

A. Side AD is congruent to Side  CB
B. Side HE is congruent to side HG. Side EF is congruent to Side GF.
C. The base angles are congruent. 
D. Side QF is congruent to Side MN, and Side QM is congruent to Side PN. The shape is a rectangle.
3 0
3 years ago
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Solve the given triangles by finding the missing angle and other side lengths.
coldgirl [10]

Answer:

  1. a ≈ 27.65; B = 28°; c ≈ 19.17
  2. a ≈ 163.30; B = 120°; c ≈ 59.77
  3. A = 13°; b ≈ 0.3874; c ≈ 1.3737

Step-by-step explanation:

As long as you're seeking outside help, the use of a suitable tool is appropriate. Many graphing calculators, apps, and web sites are available for solving triangles.

__

Here, you're given two angles and a side. The third angle is the difference from 180° of the sum of the other two. For example, in the first problem, ...

  B = 180° -A -C = 28°

The missing sides are found using the law of sines. Since you are given a side, use that as the reference, and its opposite angle as the reference angle. Then you have ...

  side = sin(opposite angle)×<em>((reference side)/sin(reference angle))</em>

Note that the factor in italics remains the same for both remaining sides.

__

In the first problem, this becomes ...

  a = sin(112°)·14/sin(28°) ≈ 27.65

  c = sin(40°)·14/sin(28°) ≈ 19.17

__

The remaining problems are worked in similar fashion.

_____

<em>Comment on triangle solutions</em>

These are straightforward because you're given two angles. If you're given two sides and an angle, the solution method varies depending on which angle you're given (opposite the long side, the short side, or the unknown side). In the last case, the law of cosines is involved. In the second case, there are likely two solutions. Once you have two angles, you can proceed as above.

8 0
3 years ago
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4d = -16 <br><br> what’s the value of d
prohojiy [21]

4d =  - 16 \\  \\ d = \cancel  \frac{ - 16}{4}  \\  \\ d =  - 4

<h3>Hope This Helps You </h3>
7 0
3 years ago
Read 2 more answers
PLEASE DO NOT ANSWER THIS EMPTY OR ADD A LINK OR SAY "Answer is in here!" I WILL REPORT YOU IF YOU DO. I DO NOT TAKE FILES PLEAS
Goryan [66]

Answer:

B

M=2

Step-by-step explanation:

rise over run

you rise 2 and go over 1

2 over 1 is just 2.

3 0
3 years ago
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A builder buys bricks at the rate of $4.50 per brick for the first 10, $3.50 per brick for the next 10, and $2.50 for any additi
iogann1982 [59]
If the first 10 bricks come out at $ 4.5, I would be spending $ 45. The other 10 bricks come out at $ 3.5 so he would be spending $ 35. Therefore, he has $ 20 available to buy bricks at $ 2.5, which would be buying 8 additional bricks. Thus, in total, with $ 100, 28 bricks were purchased.

8 0
3 years ago
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