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2 years ago

Cos60° = x divided by 16

Mathematics

2 answers:

777dan777 [17]2 years ago

6 0

Answer:

x = 8

Step-by-step explanation:

cos60° = x/16

1/2 = x/16

2x = 16

x = 16 : 2

x = 8

Goryan [66]2 years ago

3 0

Answer:

$\Huge \boxed{x=8}$

Step-by-step explanation:

$\sf \displaystyle cos(60\° ) = \frac{x}{16}$

Multiplying both sides by 16.

$\sf \displaystyle 16 \cdot cos(60\° )= \frac{x}{16} \cdot 16$

Simplifying the equation.

$\sf \displaystyle 16 \cdot \frac{1}{2} = x$

$\sf 8=x$

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Solution:

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Part B:

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$\begin{gathered} \angle5+\angle6=180^0(supplementary\text{ angles)} \\ \angle5+\angle8=180^0(supplementary\text{ angles)} \\ \angle7+\angle8=180^0(supplementary\text{ angles)} \\ \angle6+\angle7=180^0(supplementary\text{ angles)} \\ \angle1+\angle2=180^0(supplementary\text{ angles)} \\ \angle1+\angle4=180^0(supplementary\text{ angles)} \\ \angle2+\angle3=180^0(supplementary\text{ angles)} \\ \angle3+\angle4=180^0(supplementary\text{ angles)} \end{gathered}$

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