Answer:
7. Always, Veritcal Angle therom
8. Never true, it will never add up to 180 degrees
9. Never true, it will never add up to 90 degrees
10. Never true, Angle 8 and 5 are not vertical with one anouther.
11. Sometimes
12. Yes it is possible.
Answer:
125.6
Step-by-step explanation:
all you have to do is multiple the 3.14 with 40 cm to get 125.6 cm
Answer:
A ≈ 35.3 units²
Step-by-step explanation:
Calculate the radius CB using Pythagoras' identity in the right triangle.
CB² + AB² = AC²
CB² + 6² = 9²
CB² + 36 = 81 ( subtract 36 from both sides )
CB² = 45 = r²
Then area of quarter circle is
A = × πr² = × π × 45 ≈ 35.3
You need to change 17% to decimal by moving the decimal to the right by 2x
so you will get .17*800=136
Hello here is a solution :
<span>x² − 8x − 4 = 0.
</span><span>quadratic equation ax²+bx+c = 0 when : a=1 and b= -8 and c = -4
discriminant : d = b²-4ac d= (-8)²-4(1)(-4) =64+16 =70
x= (-b-rot(d))/2a </span>x'= (-b+rot(d))/2a .......conrinu