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butalik [34]
3 years ago
5

Does anyone know how to solve this?

Mathematics
1 answer:
Bezzdna [24]3 years ago
6 0

Use this version of the Law of Cosines to find side b:

b^2 = a^2 + c^2 − 2ac cos(B)

We want side b.

b^2 = (41)^2 + (20)^2 - 2(41)(20)cos(36°)

After finding b, you can use the Law of Sines to find angles A and C or use other forms of the Law of Cosines to find angles A and C.

Try it....

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4x + 3y = 22<br> 5x - 4y = 43<br> Simultaneous Equation
oksano4ka [1.4K]

Answer:

x = 7

y = -2

Step-by-step explanation:

4x + 3y = 22  ---------------------(I)

5x - 4y = 43 ---------------------(II)

Multiply(I) by 4 and equation (II) by 3. And then add the equations

(I) * 4            16x + 12y = 88

(II) *3            <u>15x  - 12y = 129</u>   {Add & thus y will be eliminated}

                    31x         = 217

x = 217/31  

x = 7

Plug in the value of x in equation (I)

4*7 + 3y = 22

28 + 3y = 22

       3y = 22 - 28

       3y = -6

         y = -6/3

y = -2

4 0
3 years ago
Kamals bedroom has an area of 120 square feet the width of the room is 5/6 the length of the room what are the dimension of kama
avanturin [10]
120.\frac{5}{6}=>20.5=100 \\  \\ 120\: square\: meters&#10; \\  \\ \framebox[1.1\width]{Good Luck!} \par&#10;
4 0
2 years ago
Read 2 more answers
2400
Verdich [7]

Answer:

I would say that the answer is 432 inches 2.

Step-by-step explanation:

Hope this helps you and stay safe:)

4 0
2 years ago
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14. Thomas counts the number of cars he sees in the parking lot of the school each hour of the
lesya692 [45]

Answer:

D

Step-by-step explanation:

it is because each number is gotten by adding 12 to the previous number

8 0
2 years ago
Find the number, if d 12/13 of it is 24
Inessa [10]

Answer:

26 is the number

Step-by-step explanation:

12/13 x = 24

Multiply by 13 on both sides

12x = 24 * 13

12x = 312

Simplify

x = 26

26

Hope this helps :)

5 0
3 years ago
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