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Lera25 [3.4K]
3 years ago
8

The graph of f(x) = lxl is transformed to g(x) = lx + 1l - 7. On which interval is the function decreasing?

Mathematics
1 answer:
olga55 [171]3 years ago
6 0
Can you help me with something
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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
Read 2 more answers
Use (pemdas) what is 3 x 7 - 25 / 5 write 3 steps
Reil [10]

Answer:

16

Step-by-step explanation:

step 1: 3 x 7 = 21

so you're left with this 21-25/5

step 2: 25/5=5

left with 21-5

step 3: 21-5=16

16 should be the right answer, sorry if i'm wrong

3 0
3 years ago
Read 2 more answers
5x−4≥12 OR 12x+5≤−4 please answer asap and right and explain like im 5 how to solve OR problems ill give brainliest and a lot of
weeeeeb [17]

Answer: x>_3.2 OR x<_ -0.75

Step-by-step explanation: first break down your compound inequality. 5x-4>_12

You first cancel out your constants by adding 4 to both sides. Now you’re left with 5x>_16 then to cancel five you have to divide on both sides by five which equals to 3.2. Then, x>_ 3.2.

Next you do your second part, 12x+5<_-4

So first cancel out the constant of 5 by subtracting 5 on both sides, making the equation 12x<_-9. Now, you divide by 12 on both sides, making it -9/12. Which effectively is -0.75. Therefor, the answer being x<_ -0.75. Add the two together x>_3.2 OR x<_0.75

4 0
3 years ago
1/2x + 3y=4 for x when x = 6
Kipish [7]
Wouldn't it be y=1/3?
6 0
3 years ago
Read 2 more answers
1) Erik has a job at Hobby Lobby and he
Artyom0805 [142]

Answer:

78

Step-by-step explanation:

is there more to this problem?

13. 00* 6 = 78

7 0
2 years ago
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