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lukranit [14]
3 years ago
12

PLEASE HELP WHAT IS THE ANSWER SHOW WORK PLEASE !!!

Mathematics
2 answers:
Mrac [35]3 years ago
7 0

Answer:

d = 6.1m

n = 7km

Step-by-step explanation:

To find the variables, use tan

⇒ tan = \frac{opposite}{adjacent}

finding d:

⇒tan 63 = \frac{d}{3.1}

tan of 63 is 1.963

⇒ 1.963 = \frac{d}{3.1}

multiply 3.1 on both sides

⇒ 1.963 x 3.1 = \frac{d}{3.1} x 3.1

⇒ 6.0853 = d

round to the nearest tenth:

⇒ 6.0853 = 6.1

finding n:

⇒ tan 45 = \frac{7}{n}

tan of 45 is 1

⇒ 1 = \frac{7}{n}

multiply 7 on both sides:

⇒ 1 x 7 = \frac{7}{n} x 7

7 = n

GuDViN [60]3 years ago
4 0

Answer:

D = 1.4, N =

Step-by-step explanation:

<em>To get D you need to find the cosine of 63 degrees </em>

<em>Cosine(63) = D / 3.1</em>

<em>Multiply by 3.1 to isolate D :</em>

<em>3.1Cosine(63) = D</em>

<em>Put it into a calculator and you'll get 1.4.</em>

Also, it's a 45-45-90 triangle so the 2 legs will be equal to each other.

Proof: To get N put you have to do the tangent of 45 degrees

Tan(45) = 7 / N

Now you can't to do this you have to multiply the both sides by N

N(tan(45)) = 7

Then divide both sides by (tan(45))

N = 7 / (tan(45)

Put it into the calculator and you'll get

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