This is the answer: <span>x2 + 5x + 6 = </span><span>(x + 2)(x + 3)</span>
Answer:
Step-by-step explanation:
When two angles add up to 90, they are complementary angles
∠a + ∠b = 90
59 + ∠b = 90
∠b = 90 - 59
∠b = 31°
Given:
Consider the below figure attached with this question.
To find:
The measure of angle r by using the cosine rule.
Solution:
According to Law of Cosine,

Using the Law of Cosine, we get




On further simplification, we get






Therefore, the measure of angle r is 106.78 degrees.
12.5*4.50 is 56.25. if you need work use a calculator