15, Yes: a^2 +b^2 = c^2
9^2+12^2= 225
The square root of 225 is 15, therefore x=15.
Answer to question is yes.
Answer:
56.25°
Step-by-step explanation:
The definition of the cosine function tells you that
cos(B) = BC/BA
B = arccos(BC/BA) = arccos(5/9)
B ≈ 56.25°
Answer:
Example: Find the radian measure of the angles −70° and 120°.
Solution: To find the radian measure of −70° we multiply −70 by the conversion factor /180. We get
Similarly, for 120° we obtain
Note that when we write an angle as a fractional amount of , for example 2/3 times we write the result either as the numerator times divided by the denominator or as the fraction times . So the two values
are equivalent ways of writing the same number. You will see both methods used in the text and in the exercises.
Example: Find the degree measure of /12.
Solution: The conversion factor for going from radians to degrees is 180/. We get
and so the radian measure of /12 is 15°.
Step-by-step explanation:
We can write an equation to solve this:
Let x represent amount of Blue Jays.
2x + x = 21
We can simplify the equation:
3x = 21
Divide both sides by 3 to isolate x variable:
x = 7
Therefore, 7 Blue Jays.
Answer:
Step-by-step explanation:
A polynomial is a perfect square if has the form:
Its factored form is 
.
We can obtain examples by taking any value of a and b.
For example:
anb 
.
Thus we obtain a polynomial that is a perfect square:
