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3 years ago

HELP! USE EITHER LAW OF SINE OR LAW OF COSINE! HELP PLEASE! FIND THE MISSING SIDE AND MISSING ANGLES!

Mathematics

2 answers:

Lelu [443]3 years ago

8 0

I hope this help with your math problem and more especially that you understand.

Eva8 [605]3 years ago

5 0

Answer:

∠Q ≈ 42.969, ∠P ≈ 52.03, QR ≈ 15.036

Step-by-step explanation:

Law of sines:

13/sin Q = 19/sin 85°

=> sin Q = 13 × sin 85°/19

=> Q = sin^-1 (13 × sin 85°/19)

=> Q ≈ 42.969

∠P=> 180 - 85 - 42.969 ≈ 52.03

QR/sin 52.03° = 19/sin 85°

=> QR = sin 52.03° × 19/sin 85°

=> QR ≈ 15.036

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3 years ago

Find the two solutions to the equation below.<br> (3x − 4) (x + 5) = 0

Dovator [93]

Answer:

x= -5

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1 year ago

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S = ut+ 16t²<br>Find the value of s when u = 2 and t = 3.

Fed [463]

Answer:

Step-by-step explanation:

Given,

u = 2

t = 3

Now, Finding the value of s

$s = ut \: + 16 {t}^{2}$

Plugging the values of u and t

$s = 2 \times 3 + 16 \times {( 3)}^{2}$

Calculate

$s = 2 \times 3 + 16 \times 9$

$s = 6 + 144$

Calculate the sum

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Hope this helps ..

Good luck on your assignment..

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3 years ago

Read 2 more answers

Find the length of a segment with endpoints Y(2, 8) and Z(- 2, 5) .

Andrej [43]

<em>The distance the length of a segment with endpoints Y(2, 8) and Z(-2, 5) is 5 units</em>

<h2>Explanation:</h2>

Endpoints of a Line segments are places where they end or stop. Line segments are named after their endpoints. In this case, those endpoints are Y and Z, so the line segment would be:

$\overline{YZ} \ or \ \overline{ZY}$

To find the length of this segment with endpoints Y(2, 8) and Z(-2, 5), let's use the Distance Formula:

$d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

$Let's \ write: \\ \\ Y(x_{1},y_{1}) \rightarrow Y(2, 8) \\ \\ Z(x_{2},y_{2}) \rightarrow (-2, 5) \\ \\ \\ Substituting: \\ \\ d=\sqrt{(-2-2))^2+(5-8)}^2 \\ \\ d=\sqrt{(-4)^2+(-3)^2} \\ \\ d=\sqrt{16+9} \\ \\ d=\sqrt{25} \\ \\ \boxed{d=5}$