By the Pythagorean theorem, the missing side is -sqrt7. The definition of sin is side opposite over hypotenuse, so go into Q2 and make an angle and label the side opposite the angle with a 3 and the hypotenuse a 4. The other leg is -sqrt7 cuz x is negative in Q2. The cosine of an angle is the side adjacent over the hypotenuse, so the cos then is -sqrt7/4
Answer:
Acute
Step-by-step explanation:
An acute triangle has three angles that each measure less than 90 degrees.
Answer:
C
Step-by-step explanation:
a=
r^2
To find the radius, divide the diameter by 2
r=d/2
r=10/2
r=5
a=
r^2
a=
5^2
a=25
So, choice C is correct
Hope this helps! :)
Answer:
y = -2x - 2
Step-by-step explanation: