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Zigmanuir [339]
3 years ago
6

Math question please help if you get this right I will mark you as a brainliest

Mathematics
1 answer:
san4es73 [151]3 years ago
3 0

The Law of Cosines would be your best bet here, since the unknown side is opposite the known angle 110 degrees.

|AC|^2 = (8 in)^2 + (23 in)^2 - 2(8 in)(23 in)*cos 110 degrees

= 64 in^2 + 529 in^2 - (368 in^2)*(-0.342)

= 593 in^2 + 126 in ^2 approximately

= 719 in^2 approximately

Then the length of side AC is approx. √(716 in^2) = 27 in

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D2-9k+3 for d=10 and k=9
AVprozaik [17]

Answer:

22

Step-by-step explanation:

10^2-9(9)+3

100-81+3

19+3

22

8 0
3 years ago
A woman is 5 ft tall and her shadow is 4 ft long.A nearby tree has a shadow 30 ft long.How tall is the tree?
sukhopar [10]
37 feet and 5 inches is the tree. hope i helped

4 0
4 years ago
Need help with 34,35,36,37
nirvana33 [79]
34. x - 3 = 8x + 4
      -3 - 4 = 8x - x
      -7 = 7x
      -7/7 = x
      -1 = x

y = x - 3
y = -1 - 3
y = -4

solution is (-1,-4)
===================
35. -6 = -x - 2y
      x = -2y + 6

2 + 5x = -2y
2 + 5(-2y + 6) = -2y
2 - 10y + 30 = -2y
32 = -2y + 10y
32 = 8y
32/8 = y
4 = y

2 + 5x = -2y
2 + 5x = -2(4)
2 + 5x = -8
5x = -8 - 2
5x = -10
x = -10/5
x = -2

solution is (-2,4)
==================
36. 4x + 6y = 2000
       x + y = 410
==================
37. 4x + 6y = 2000
       x + y = 410......multiply by -6
----------------------
4x + 6y = 2000
-6x - 6y = - 2460 (result of multiplying by -6)
--------------------add
-2x = - 460
x = -460/-2
x = 230 <=== tickets in advance
 

3 0
3 years ago
Which of these is a simplified form of the equation 7x + 4 = 5 + 3x + 1x?
svetoff [14.1K]
Your answer is going to be <span>3x=1.</span>
3 0
4 years ago
Read 2 more answers
Such that y is 5/12 times x and z is 50.25 more than x . If y = 15.5 , what is the value of z ?
Ainat [17]
91726252552
Usury 1817 could help62625[617]
6 0
3 years ago
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