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Lyrx [107]
3 years ago
14

Using the law of sines, solve for ‘x’

Mathematics
1 answer:
Murljashka [212]3 years ago
4 0

Answer:

x=9.91098

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS

<u>PreCalc</u>

  • Law of Sines: \frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}

Step-by-step explanation:

<u>Step 1: Define</u>

A = 15°

a = 7.5 mi

B = 20°

b = x

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute:                    \frac{sin(15)}{7.5} =\frac{sin(20)}{x}
  2. Cross-multiply:             xsin(15)=7.5sin(20)
  3. Isolate <em>x</em>:                       x=\frac{7.5sin(20)}{sin(15)}
  4. Evaluate:                       x=9.91098
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Answer:$100

Step-by-step explanation:

He need five periods of play time because 150 divided my 30 is 5. Then, you multiply 5 times the $20 because it is $20 for every 20 minutes.

Therefore, the answer is 20.

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3 years ago
if a cylinder has a volume of approximately 125.6 cubic cm and has a height of 10cm what is the length of the radius
Elina [12.6K]

Answer:

radius = 4 cm

Step-by-step explanation:

To find the length of the radius, we will follow the step below;

First, write down the formula for finding the volume of a cylinder

v=πr²h

where v is the volume of a cylinder

r is the radius      and

h is the height of the cylinder

from the question given,

v=125.6    and h = 10 cm

we can now proceed to insert the values into the formula and solve for r

note that π is a constant which is equal to 3.14

v=πr²h

125.6 =3.14×r×10

125.6 =31.4 r

Divide both-side of the equation by 31.4

125.6/31.4 =31.4 r/31.4

4 = r

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The length of the radius = 4 cm

4 0
3 years ago
select the correct percent increase for a price that is double the original amount for example a book that originally cost $30 n
nexus9112 [7]
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8 0
3 years ago
(b) Graph the equation x – 2y = 3​
arsen [322]

Answer:

Please look at the image below.

Step-by-step explanation:

If you fix this equation into the y-intercept form(y=mx+c), it will become:

-2y=-x+3

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Looking at this, x/2 is the slope, and -3/2 is the y-intercept.

Hope this helps!!!!

6 0
4 years ago
Read 2 more answers
Pls help me. I'm begging TwT
xeze [42]

Answer:

the answer is 46

Step-by-step explanation:

4×28/ 7×1 = 112/7

In this case, our new fraction can actually be simplified down further. To do that, we need to find the greatest common factor of both numbers.

We already did that, and the GCF of 112 and 7 is 7.

We can now divide both the new numerator and the denominator by 7 to simplify this fraction down to its lowest terms.

112/7 = 16

and do the same for 3/4 out of 16 then add ur answers

4 0
3 years ago
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