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daser333 [38]
3 years ago
12

Please help, will give extra points​

Mathematics
2 answers:
zepelin [54]3 years ago
6 0
Angle AOC:124
angle BOC:56
adelina 88 [10]3 years ago
5 0

Answer:x=31

angle AOC = 124

angle BOC = 56

Step-by-step explanation:

We first need to solve for x to solve the rest. We would normally solve for x by setting 2 equations equal to each other, in this case however, we know that the two angles are adjacent and in total add up to 180. Therefore we combine like terms of both angles, and set them equal to 180.

So, we do

3x+31+2x-6=180      We will combine like terms

5x+25=180      Now we will do inverse operations

5x=155

x=31

We plug x into angle AOC to solve for it

3(31)+31= 124

180-124=56 or angle BOC because the whole angle is 180, and if we subtract 124 from 180 we get the remainder which is angle BOC

Or if you want,

2(31)-6=56

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Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units ass
FrozenT [24]

Answer:

H0 is rejected.There difference in the means for the three assembly methods.

Step-by-step explanation:

Calculating gives the following results.

ANOVA Table

Source        DF                  Sum                Mean            F Statistic      

                                       of Square         Square

Treatments       2               4560               2280             9.865

(between groups)

 

<u>Error            27                  6240                231.111                                   </u>

Total         29                   10,800  

Error SS= SST -SSTR = -10,800-4560=6240    

d.f for SSTr = r-1= 3-1

D.f for SST= n-r= 30-3= 27

Total D.f= d.f for SSTr+D.f for SST= 27+29

MSTR= SSTR/d.f= 4560/2= 2280

MSError= Error SS/ d.f= 6240/27=231.111

F test= MSTR/ MsError= 2280/231.11= 9.865

The P- value < 0.01 which  is less than 0.05 therefore H0 is rejected.

There is sufficient evidence to reject H0.

3 0
3 years ago
a school has 17 tables in the cafeteria. each table seats 12 students. what is the greatest number of students that can be seate
grin007 [14]
12x17= 204 students
3 0
3 years ago
Read 2 more answers
13) -3x - 4y = 8<br>-4x - 3y=6​
Dvinal [7]

Answer:

x = 0, y = -2

Step-by-step explanation:

-3x - 4y = 8  (1)

-4x - 3y=6​ (2)

Multiply (1) by -4 and (2) by -3, we have:

12x + 16y = - 32  (3)

12x + 9y= -18​ (4)

Subtract (4) from (3), we have:

(12x + 16y) - (12x + 9y) = - 32  - (-18)

<=> 7y = - 14

=> y = - 2

Replace y with - 2 in (3), we have x = 0

6 0
4 years ago
32a^3+8 factor the common factor out of this expression
lyudmila [28]

8 * (4a^(3) + 1)

Step-by-step explanation:

Factor out 8 from the expression.

8 * 4a^(3) + 8 * 1 = 8 * (4a^(3) + 1)

3 0
3 years ago
X=y-3<br> 2x-2y=-6<br> No solution, one solution, or infinite solution?
gladu [14]

Answer:

No solution

Step-by-step explanation:

2y - 3 - 2y = -6

2y - 2y - 3 = -6

-3 = -6

No solution

5 0
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