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sladkih [1.3K]
2 years ago
10

Find the missing angles

Mathematics
1 answer:
zloy xaker [14]2 years ago
7 0

Answer:

1= 41

2= 85

3= 95

4= 85

5= 36

6= 49

7= 106

Step-by-step explanation:

I'm going to go in the order I filled them in.

3: angles that are across from each other are the same. 3 is across from the angle measured 95, so that's what 3 is.

4: We know that a line is 180 degrees. So, subtract 95 from 180:

180 - 95 = 85.

2: same for four, because two angles across from each other are the same.

5: Similar to 2 and 4. A line is 180. So, we subtract 144 from 180:

180 - 144 = 36

7: Use the large triangle on the right (the one with 38, number 7, and number 5). A triangle's angles always add up to be 180. So, subtract 38 and 36(answer to number 5) from 180:

180 - 38 - 36 = 106

6: Use the small triangle in the middle (angles 3, 5 and 6). We know angle 3 is 95 and angle 5 is 36. A triangle's angles are 180, so subtract:

180 - 95 - 36 = 49

1: Use the left triangle (angles 1, 6 and the 90 degree angle). We know angle 6 is 49, so subtract. Remember, a square in the corner is 90 degrees:

180 - 90 - 49 = 41

I hope this helps :)

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Step by step explanation
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A rectangular hotel room is 5 meters by 6 meters. The owner of the hotel wants to recarpet the room with carpet that costs $57.0
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Help please ! Please
gizmo_the_mogwai [7]

Answer:

15, 8, 25 The teacher payed 0.40 per book.

Step-by-step explanation:

4/10 = 2/5 Simplify the 4/10 to find the unit rate.

15: 2/5 = 6/x Set up your proportion.

    2x   =30 Cross multiply

    /2      /2 Divide both sides by 2 to isolate x

     x     =15

8: 2/5 = x/20 Set up proportion

   40  =5x Cross multiply

    /5     /5 Divide both sides by 5 to isolate x

     8  =x

25: 2/5 = 10/x Set up proportion

      2x  =50 Cross multiply

       /2     /2 Divide both sides by 2 to isolate x

        x   =25

Graph: y=mx+b To graph, you will need to use y=mx+b format

           y= 2/5 x+2 2/5 is your unit rate. Your rate changes every 2 books bought. To graph, start at (0,2) and go up 2 and to the right 5, plot. Continue moving up 2 and to the right 5 to graph.

The teacher payed 0.40 per book because 2/5 simplifies to 0.40.

   

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Answer:

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Step-by-step explanation:

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3 0
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Read 2 more answers
Simplify (4x^2+2)÷(2x^2-9x-5)​
frosja888 [35]

Answer:

4.1     Pull out like factors :

   4x2 + 2  =   2 • (2x2 + 1) 

Polynomial Roots Calculator :

 4.2    Find roots (zeroes) of :       F(x) = 2x2 + 1

Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which   F(x)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  x  which can be expressed as the quotient of two integers The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  2  and the Trailing Constant is  1.

 The factor(s) are:

of the Leading Coefficient :  1,2

 of the Trailing Constant :  1

 Let us test ....

  P  Q  P/Q  F(P/Q)   Divisor     -1     1      -1.00      3.00        -1     2      -0.50      1.50        1     1      1.00      3.00        1     2      0.50      1.50   

Polynomial Roots Calculator found no rational roots

Trying to factor by splitting the middle term

 4.3     Factoring  2x2 - 9x - 5 

The first term is,  2x2  its coefficient is  2 .

The middle term is,  -9x  its coefficient is  -9 .

The last term, "the constant", is  -5 

Step-1 : Multiply the coefficient of the first term by the constant   2 • -5 = -10 

Step-2 : Find two factors of  -10  whose sum equals the coefficient of the middle term, which is   -9 .

     -10   +   1   =   -9   That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -10  and  1 

                     2x2 - 10x + 1x - 5

Step-4 : Add up the first 2 terms, pulling out like factors :

                    2x • (x-5)

              Add up the last 2 terms, pulling out common factors :

                     1 • (x-5)

Step-5 : Add up the four terms of step 4 :

                    (2x+1)  •  (x-5)

             Which is the desired factorization

Final result :

2 • (2x2 + 1) —————————————————— (x - 5) • (2x + 1)

5 0
2 years ago
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