Answer:
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EF is tangent to the circle we'll assume; otherwise there's no progress.
Call the center C. ECD is isosceles, formed from two radii and the chord.
Angle CED is complementary to DEF
CED = 90 - 65 = 25 degrees
CDE is congruent, isosceles triangle and all that: CDE=25
That leaves DCE=180-25-25=130 degrees
That's the measure of arc DE as well:
Answer: 130 degrees, choice A
Answer:
3=6
4=8
5=10
6=12
graph 1
Step-by-step explanation:
Answer:
100-16x
Step-by-step explanation:
-10(-10+7x)-6(-9x)
apply rule -(-a)=a:
-10(-10+7x) +6x9x
Multiply 6 x 9:
-10(-10 + 7x)+54x
Distribute:
100-70x+54
combine like terms:
100-16x
Answer:
1/3 or 3
Step-by-step explanation:
9-6 = 3