Answer:
4r + 15 = -1
Step-by-step explanation:
Answer:
x = 10
Step-by-step explanation:
With reference angle 30°
Perpendicular (p) = 5 cm
hypotenuse (h) = x = ?
Now
sin 30° = p / h
0.5 = 5 / x
x = 5/ 0.5
Therefore x = 10
I think the answer is
No
No
Yes
But I'm not sure about the last one
Chord length = 2√r²-d²
r= radius of the circle
d= perpendicular distance from the chord to the circle center.
Example:
radius = 5cm
distance = 4cm
2√5²-4²
=2√25-16
=2√9
=2×3
=6cm
Answer: 6 cm.
Hope this helped!