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pantera1 [17]
2 years ago
5

I need help finding out what x is only using the sine and cosine rule.

Mathematics
1 answer:
Natali5045456 [20]2 years ago
5 0
Angles in a triangle add up to 180 degrees.
Find all the angles in the triangles by using this info.

To use sin or cosine, you need a right triangle. Remember, cos(theta) = adj/hyp and sin(theta) = opp/hyp.
Solve for the side shared by both triangles first. From this you will get part of x and the line in the middle of the large triangle. Use this line to solve for the hypotenuse of the large triangle then use the hypotenuse to solve for the other part of x. Add both x's together to get your answer
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What is 0.00000354 moles per liter in standard notation?
mihalych1998 [28]
3.54x10 to the 5th is the standard notation for 0.00000354
5 0
1 year ago
Solve the following equation for x.<br> 0.1(x + 250) = 5,000<br> h
yan [13]

Answer:

x=49750

Step-by-step explanation:

0.1(x + 250) = 5,000

Divide each side by .1

0.1(x + 250)/.1 = 5,000/.1

x+250 =50000

Subtract 250 from each side

x+250-250 = 50000-250

x=49750

3 0
2 years ago
Read 2 more answers
What is the length of the missing leg? If necessary, round to the nearest tenth.
KengaRu [80]

<u>Answer:</u>

  • a = 3.5

<u>Step-by-step explanation:</u>

<u>Let's find 'a' using Pythagoras theorem.</u>

  • => 4² = 2² + a²
  • => 16 = 4 + a²
  • => 12 = a²
  • => a = √12
  • => a = √2 x 2 x 3
  • => a = 2√3
  • => a = 2 x √3
  • => a = 2 x 1.732
  • => a = 3.464 = 3.5 (Estimated)

Hoped this helped.

BrainiacUser1357

4 0
2 years ago
Please help me Arithmetic Reasoning
jek_recluse [69]

Step-by-step explanation:

Price of Jeans = $78.35

30% coupon = 30% × $78.35 = $23.51

6% sales tax = 6% × $78.35 = $4.70

1% local option tax = 1% × $78.35 = $0.78

Total cost of jeans = $78.35 - $23.51 + $4.70 + $0.78 = $60.32

8 0
2 years ago
one maid can clean the house three times faster than another. Working together they can clean the entire house in 3 hours. How l
12345 [234]
<span>Faster maid DATA:
time = x hr/job ; rate = 1/x job/jhr
Slower maid DATA:
time = 3x hr/job ; rate = 1/3x job/hr
Together DATA:
time = 3 hr/job ; rate = 1/3 job/hr
Equation:
rate + rate = together rate
1/x + 1/3x = 1/3
Multiply thru by 3x to get:
3 + 1 = x
x = 4 hrs (time for the faster maid to do the job)</span>
7 0
3 years ago
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