Answer:
Step-by-step explanation:
tan (40) = x/12
x = 12*tan(40)
Answer:
2/5
Step-by-step explanation:
1. 1/2 * 4/5
2. 4/10
3. reduce/divide the fraction by 2
4. you get 2/5
Answer:
a = 49°
Step-by-step explanation:
OB = OC ( both radii of the circle ), thus
Δ BOC is isosceles and the base angles are congruent, that is
∠ OBC = ∠ OCB = 41° , so
∠ BOC = 180° - (2 × 41)° = 180° - 82° = 98°
The angle on the circumference BAC is half the angle at the centre for angles subtended on the same arc , thus
a = 0.5 × 98° = 49°
Answer:
A is correct. Please Mark brainliest!!????
Step-by-step explanation:
Answer:
r = - 
Step-by-step explanation:
8r + 6 = 2 ( subtract 6 from both sides )
8r = - 4 ( divide both sides by 8 )
r = 
= -
