Answer:
n=-6
Step-by-step explanation:
distribute -7 into (4n+8)
-10n+50=-28n-56-2
combine like terms
-10n+50=-28n-58
add -28n on both sides
-10n+28n+50=-58
combine like terms again
18n+50=-58
subtract 50 on both sides
18n=-108
divide both sides by 18
x=-6
hope this helps
Answer:
Step-by-step explanation:
1) ΔCPD & ΔEPF
∠CPD = ∠EPF { Vertically opposite angles}
∠CDP = ∠PFE {CD║EF, FD is transversal, Alternate interior angles are equal}
ΔCPD ≈ΔEPF {AA criteria for similarity }
Cross multiply
EF * 15 = 27 * 7.5
EF = 27 * 0.5
EF = 13.5 cm
ii) EF // AB, so Triangles ACB & ECF are similar triangles
AC = 37.5 cm
