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kumpel [21]
3 years ago
12

Solve for x. x = [?] 4x - 2/3x 14

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

Answer:

x = 24°

Step-by-step explanation:

<em>Here's</em><em> your</em><em> solution</em>

<em> </em> => (4x - 2) + (3x + 14) = 180°

=> 7x + 12 = 180°

=> 7x = 180° - 12°

=> 7x = 168°

=> x = 168°/7

=> x = 24°

hope it helps

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Solve for x
6x+5y=-15
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divide both sides by 5
y=-6/5x-3
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What is the measure of the vertex angle of an isosceles triangle if one measure 65 degrees and its congruent sides are 15cm each
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I believe the answer is A 
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What is an equation for the line perpendicular to y=-1/8x+6 that passes through (-3,-10)
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Answer:

y = 8x + 14

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{1}{8} x + 6 ← is in slope- intercept form

with slope m = - \frac{1}{8}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{1}{8} } = 8 , then

y = 8x + c ← is the partial equation

To find c substitute (- 3, - 10 ) into the partial equation

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4 0
3 years ago
4) Solve ∆ABC, a = 2.5 cm, c = 3.6 cm, and ∠A = 43°. Begin by sketching and labelling
timofeeve [1]

The length of b and angle B and C are 2. 9cm, 44. 9  degrees and 79. 11 degrees respectively.

<h3>How to determine the parameters</h3>

To determine the angles and length of sides, we use the sine rule

The sine rule is thus:

\frac{sin A}{a} = \frac{sin B}{b} = \frac{sin C}{c}

Given;

  • a = 2. 5cm
  • c = 3. 6cm
  • ∠A = 43°

Let's find angle C

\frac{sin 43}{2. 5} = \frac{sinC}{3. 6}

cross multiply

0. 682 × 3. 6 = sin C × 2. 5

sin C = 2. 4552/ 2. 5

C = sin^-^1( 0. 98206)

C = 79. 11°

To find length of b

b = \sqrt{c^2 - a^2}

substitute the values

b = \sqrt{3. 6^2 - 2. 5^2}

b = \sqrt{12. 96 - 6. 25 }

b = \sqrt{6. 71}

Take square root

b = 2. 59 cm

To find angle B, we have

\frac{sin 43}{2. 5} = \frac{sin B}{2. 59}

cross multiply

0. 682 × 2. 59= sin B × 2. 5

sin B = 0. 7066

B = sin^-^1 ( 0. 7066)

B = 44. 9 °

Thus , the length of b and angle B and C are 2. 9cm, 44. 9  degrees and 79. 11 degrees respectively.

Learn more about sine rule here:

brainly.com/question/12827625

#SPJ1

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