Answer:
(9.2 , 0)
Step-by-step explanation:
vertex: (4.6 , 12.2)
parabola: y = a (x-4.6)² + 12.2
pass (0,0): 0 = a (0-4.6)² + 12.2
a = - (12.2/21.16)
2nd root (x , 0): y=0
0 = a (x-4.6)² + 12.2 (x-4.6)² = - 12.2 / a = -12.2 / (- (12.2/21.16)) = 21.16
x - 4.6 = ± √21.16 = ± 4.6
x = 0 or x = 9.2
The complete question in the attached figure
we know that
<span>m∠BAC = 50°
</span><span>m∠CBA = 70°
and
</span>m∠BAC+m∠CBA+m∠ACB=180°
then
m∠ACB=180-[m∠BAC+m∠CBA]---------> 180°-[50°+70°]=60°
m∠ACB=60°
remember that
BC║DE
therefore
m∠ACB=m∠DEC
m∠DEC=60°
the answer is m∠DEC=60°
Answer:
x= -4
Step-by-step explanation:
−2(4x+4)−3x−2=34
(−2)(4x)+(−2)(4)+−3x+−2=34(Distribute)
−8x+−8+−3x+−2=34
(−8x+−3x)+(−8+−2)=34(Combine Like Terms)
−11x+−10=34
−11x−10=34
−11x−10+10=34+10
−11x=44
−11x
/−11 = 44
/−11
x=−4
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If y = -8 then it doesnt intercept the x axis, or any axis, it is just a horizontal line at y=-8