Ok so you have to foil which is firsts, outsides, insides, last which would result in xsquared-9
Answer:
Step-by-step explanation:
Answer:
x=16
Step-by-step explanation:
If the triangles are similar then their sides are in proportion.
Set the proportions 20/(3x+8)=(x-1)/(x-1+27)
solve for x,
cross multiply
20(x+26)=(x-1)(3x+8),
distribute
20x+520= 3x² +8x-3x-8,
combine like terms
3x²-15x-528=0
solve using quadratic formula
x=16 and x= -11 reject because we cannot have negative measurements
Answer= 22B
3(A) = -2+(-2) + (-2)=B
=5
Answer:
d = 14
Step-by-step explanation:
d = 6 + 8
d = 14
I hope it helps you