Answer:
12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a+2+2+2
Hi,
1) ax²+2bx+c=0 have real roots then (2b)²-4ac>=0 ==> 4b²>=4ac ==> b²>=ac
2) bx²-2√(ac)x+b=0 have real roots then
(-2√(ac))²-4b²>=0==> 4ac>=4b²==> ac>=b²
So b²>=ac>=b²==> b²=ac
Answer:
Measure of major arc BDC = 260.5° Option A
Step-by-step explanation:
Given that, measure of central angle ∠BAE = 80.5°
Firstly we will find the measure of arc BE .
The measure of arc BE is same as the measure of its central angle.
So, measure of minor BE arc = 80.5°
measure of arc EDC = 180° because of half circle
So,
measure of major arc BDC = 180° + 80.5° = 260.5° option A
That's the final answer.
Answer:
8/8
Step-by-step explanation:
4/4 = 1
8/8 = 1
you can also see it in the number line that 4/4 and 8/8 are located in the same place.
