Answer:
<15,-21>
Step-by-step explanation:
u = <3, -1>
v = <-6, -6>
9u + 2v
9 <3, -1>+2 <-6, -6>
<27, -9> + <-12,-12>
<15,-21>
Answer:
$21.46
Step-by-step explanation:
step 1) Multiply your subtotal by the applicable tax rate and enter the tax charged below your subtotal. So, if your subtotal is $16.40 and you need to apply sales tax at 9 percent, multiply $16.40 by 0.09 to arrive at $1.48. Add your subtotal to the tax your're charging to arrive at the total amount due.
step 2) If you want to leave a 20% tip, multiply the cost by 0.20 to get the tip amount or multiply the cost by 1.20 to get the total including tip.
step 3) if you haven't already add the amounts you got for the tax and tip to the subtotal $16.40 and you will get the answer: $21.46
v = - 5
distribute right side of equation and simplify
2v + 18 = 16 - 4v - 28
2v + 18 = - 12 - 4v ( add 4v to both sides )
6v + 18 = - 12 ( subtract 18 from both sides )
6v = - 30 ( divide both sides by 6 )
v = 
= - 5
Answer:
Unable to be determined.
Step-by-step explanation:
AA postulate : 2 corresponding angles that are congruent.
SSS theorem : 3 sides of a triangle that are equal to another triangle's 3 sides.
SAS postulate: 2 sides and their included angle are congruent to another triangle's 2 sides and their included angle.
This would seem to follow the SAS postulate at first, but the angle we are provided is not the included angle of the sides. In triangle ABC, we are analyzing lines AB and AC. Their included angle is A, but we are given the measure for angle B.
Same with DEF; we analyze DE and DF, who share angle A, but we are given angle E as a measure.
Therefore, we cannot determine if the triangles are similar or not.
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