Answer:
D
Step-by-step explanation:
Similar triangles have corresponding sides that are proportional.
- AC is corresponding side to DF
- AB is corresponding side to DE
- BC is corresponding side to EF
From the 2 given corresponding sides, AB = 8 and DE = 12, we can figure out their proportionality.

<em>So all corresponding sides of the first triangle to the second triangle will have a ratio of 2:3.</em>
So,

DF = 15
And,

EF = 9
Answer choice D is right.
Subtract 13.09 from 21.59 giving you 8.5. Since the amount of space on both the left and right margin have to be equal you would divide by 2 to get 4.25 on the left margin as well as the right.
Answer:

Step-by-step explanation:
Slope is negative reciprocal when two lines are perpendicular
m1=1/2 therefore m2=-2
The equation of the line in point-slope form is given as

Here m=-2 and (x1, y1)=(-3, -1)
Therefore,

Answer:
Evaluate: to determine or set the value or amount of; appraise: to evaluate the property. to judge or determine the significance, worth, or quality of; assess: to evaluate the results of an experiment. Mathematics. to determine or calculate the numerical value of (a formula, function, relation, etc.).
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you just muliply 16 by 4 i