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Murrr4er [49]
3 years ago
6

What is the answer to the last question

Mathematics
2 answers:
Vesna [10]3 years ago
4 0

Answer:

the answer for the last one is A = 6

egoroff_w [7]3 years ago
3 0

Answer:

b

Step-by-step explanation:

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What is the best approximation of the value of w? 1. 4 cm 4. 0 cm 6. 0 cm 7. 3 cm.
MrRissso [65]

To solve the problem we must know about Sine Rule.

<h3>What is Sine rule?</h3>

The sine rule of trigonometry helps us to equate the side of the triangles to the angles of the triangles. It is given by the formula,

\dfrac{Sin\ A}{\alpha} =\dfrac{Sin\ A}{\beta} =\dfrac{Sin\ A}{\gamma}

where

  • Sin A is the angle and α is the length of the side of the triangle opposite to angle A,
  • Sin B is the angle and β is the length of the side of the triangle opposite to angle B,
  • Sin C is the angle and γ is the length of the side of the triangle opposite to angle C.

The value of w is 4.0 cm.

Given to us

  • VW = 3.3 cm,
  • ∠U = 31°,
  • ∠W = 39°,
<h3>Using the sine law,</h3>

\dfrac{Sin\ A}{\alpha} =\dfrac{Sin\ A}{\beta} =\dfrac{Sin\ A}{\gamma}

Substitute the values,

\dfrac{Sin\ W}{w} = \dfrac{Sin\ U}{VW}

\dfrac{Sin\ 39^o}{w}=\dfrac{Sin\ 31^o}{3.3}

w=\dfrac{(Sin\ 39^o) \times 3.3}{Sin\ 31^o}

w = 4.03224 cm ≈ 4.0 cm

Hence, the value of w is 4.0 cm.

Learn more about Sine Rule:

brainly.com/question/17289163

4 0
2 years ago
What is the value of x?<br> A 5<br> B 2.5<br> C 7.5<br> D 10
RoseWind [281]

Answer:

A 5

Step-by-step explanation:

Parts on the left have the same ratio as parts on the right.

... x/(x+5) = (x -2)/(x +1)

Multiplying by (x+5)(x+1), we get

... x(x +1) = (x -2)(x +5)

... x² +x = x² +3x -10 . . . . eliminate parentheses

... 0 = 2x -10 . . . . . . . . . . subtract x²+x

... 0 = x -5 . . . . . . . . . . . . divide by 2

... 5 = x . . . . . . . . . . . . . . . add 5

3 0
3 years ago
Read 2 more answers
Olivia goes to Egypt and saw a model of triangle shaped pyramid. She enlarging using a scale factor of 1.2. What will be the per
ivann1987 [24]
If you are talking about the area and perimeter of one of the triangular faces...
8 x 1.2 = 9.6
6 x 1.2 = 7.2

Perimeter = 9.6 + 7.2 + 7.2 = 24
Area = Linear Scale Factor²
1.2² = 1.44
7 x 1.44 = 10.08 (units)²
8 0
3 years ago
PLEASE HELP PLEASE PLEASE
liberstina [14]

<L = 1/2(130 - arc MK)

45 = 1/2(130 - arc MK)

90 = 130 - arc MK

arc MK = 130 - 90

arc MK = 40

Answer

arc MK = 40°


4 0
3 years ago
HELP PLEASE
Elis [28]

Answer:

  • 2 ≤ x < 9 or x = [2, 9)

Step-by-step explanation:

<u>Negative four is at least six less than a number</u>

  • -4 ≤ x - 6 ⇒ x ≥ 2

<u>Sum of a negative two & nine times a number is less than seventy nine</u>

  • -2 + 9x < 79  ⇒ 9x < 81 ⇒ x < 9

<u>Combined inequality:</u>

  • 2 ≤ x < 9 or x = [2, 9)
3 0
3 years ago
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