Answer:
150°
Step-by-step explanation:
It is given that CosФ < 0 i.e CosФ is negative.
Therefore, the minimum the value of Ф for which CosФ <0 will be in the second quadrant i.e 90° < Ф < 180°.
Now it is also given that, Sin Ф =0.5 {the value of SinФ is positive because Sin value is positive in second quadrant.}
⇒ Ф =180° - Sin⁻¹ (0.5) = 180°-30° =150° (Answer)
The graph which best represents a function with a domain of all real numbers less than or equal to 6 is; Choice A as represented in the attached image.
<h3>Which graph represents the given domain?</h3>
According to the task content;
- The domain of the graph which means the set of possible values of x is less than or equal to 6.
On this note, it follows that the graph which is characterized by the given domain is as attached.
Read more on graphs;
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(-2,7) because of the circle equation.
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SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Explain the formula to use
Using the cosine rule which states that:

STEP 2: Write the given sides

STEP 3: Find the value of z

Hence, the indicated length is 4.0
Answer:
part a= -1
part b= -4
Step-by-step explanation:
f(x) is y. plug in -4 for y and check x