3 years ago

Can someone help me with my math homework

Mathematics

1 answer:

Roman55 [17]3 years ago

7 0

Answer:

1.y= -2x+3 slope -2

2. y= -4/5x-6 slope -4/5

3. y= 1/3x=4 slope 1/3

4. y= x+8 slope 1

5. y= 4x slope 4

6. y= 3/2x+7 slope 3/2

7. y= 3/2x+5 slope 3/2

8. y= -1/5x-3 slope -1/5

Step-by-step explanation:

move variable to the right

change the signs

divide both sides

reorder the terms

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Type the correct answer in the box. Round your answer to the nearest integer.

umka21 [38]

Answer:

m∠ADC = 132°

Step-by-step explanation:

From the figure attached,

By applying sine rule in ΔABD,

$\frac{\text{sin}(\angle ABD)}{\text{AD}}=\frac{\text{sin}(\angle ADB)}{AB}$

$\frac{\text{sin}(120)}{35}=\frac{\text{sin}(\angle ADB)}{30}$

sin(∠ADB) = $\frac{30\text{sin}(120)}{35}$

= 0.74231

m∠ADB = $\text{sin}^{-1}(0.74231)$

= 47.92°

≈ 48°

m∠ADC + m∠ADB = 180° [Linear pair of angles]

m∠ADC + 48° = 180°

m∠ADC = 180° - 48°

m∠ADC = 132°

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