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Tatiana [17]
3 years ago
5

This is the back side of the paper

Mathematics
1 answer:
vodomira [7]3 years ago
6 0

Answer:

The answers are given below.

Step-by-step explanation:

8) A) acute               9) C) acute                  10) D) right                 11) B) acute  

12) A) straight          13) A) acute               14) D) right                     15) C) ∠L

16) B) ∠HIG               17) B) ∠DEC              18) B) ∠K                         19) C) ∠G

20) C) ∠KLJ

We know that ,

1. when 0° < θ < 90°, θ is acute.

2. when  θ = 90°  θ  is right

3. when 90° < θ < 180°, θ is obtuse

4. when  θ = 180°  θ  is straight

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3 years ago
or the 7:30 show time, 140 movie tickets were sold. Receipts from the $13 adult tickets and the $10 senior tickets totaled $1,66
Sever21 [200]

Answer:

adult tickets x=88  and senior tickets y=52

Step-by-step explanation:We can take adult ticket as x and senior ticket as y.

Now we will form two equations

x + y = 140

13x + 10y = 1664

This system of equations we will solve using Gaussian algorithm (gradual elimination of the variables)  

We will multiply first equation with (-10) and get

-10x-10y=-1400 Than we will add to second equation and get

3x=264 => x=264/3=88 => x=88

Now we will replace x in the first equation before multiplying and get

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adult tickets x=88  and senior tickets y=52

Good luck!!!

6 0
3 years ago
Hello there! How to find the probability? See picture! Thank you and please show your work!
german

Answer:

  0.8914

Step-by-step explanation:

You want to find the z-values associated with the x-values:

 z = (x -μ)/σ

 z1 = (57 -90)/12 = -2.75

 z2 = (105 -90)/12 = 1.25

Look up these values in a probability table and find the difference of the table values.

 p(z < z1) ≈ 0.00298 . . . . from a table or calculator

 p(z < z2) ≈ 0.89435 . . . . from a table or calculator

p(57 < x < 105) ≈ 0.89435 -0.00298 = 0.89137 ≈ 0.8914

8 0
4 years ago
Jeremy tracked the temperature as a weather front crossed his region. The temperature rose 12 degrees, fell 27 degrees, and fina
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Answer: -2 degrees Celsius

Step-by-step explanation:

6 0
3 years ago
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Answer:

I belive the answer is D.

Step-by-step explanation:

I hope this helped.:)

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2 years ago
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