−<span>5<span>√<span>5 is the correct answer
Hope this helped!</span></span></span>
9514 1404 393
Answer:
D 9/DF = 18/16
Step-by-step explanation:
Corresponding sides are proportional. The proportions based on a given similarity statement can be written 4 ways.
For these isosceles triangles, the similarity statement could be written either of two ways:
ΔDEF ~ ΔABC or ΔDEF ~ ΔCBA
Corresponding sides will depend on the similarity statement you use. Using the first one, they are ...
DF and AC (short sides)
DE and AB (long sides)
EF and BC (long sides)
For each (short side, long side) pair, we can write the proportion 4 ways:
- DF/DE = AC/AB ⇒ DF/9 = 16/18
- DF/AC = DE/AB ⇒ DF/16 = 9/18
- DE/DF = AB/AC ⇒ 9/DF = 18/16 . . . . . matches choice D
- AC/DF = AB/DE ⇒ 16/DF = 18/9
Using the other pair of long sides, or using the other similarity statement, the numerical proportions are the same as the ones listed above.
The answer would be A because if you reflect triangle ABC over the x-axis then the y-axis it will be congruent to triangle XYZ
hope this helps!
Rita's score is 18. I'm not sure if that's the answer you're looking for though.
Answer:
I'm pretty sure It is a rational number.
Step-by-step explanation:
I am not 100% sure but here's some other information/explanation to why I think it is:
Rational means it can be a fraction.
Even though it's a repeating decimal it isn't like pi where it's nonstop.
I hope I could help you!
