Step-by-step explanation:
The two triangles are similar so
BC=BC
AB=AB
AC=AC
1.)5z=20 (÷b.s by 5)
z=4
2.)8=2x+2
8-2=2x
6=2x (÷b.s by 2)
x=3
3.)3y-3=15
3y=15+3
3y=18. (÷ b.s by 3)
y=6
Answer:(2/5)j^2
Step-by-step explanation:
Assuming scores are normally distributed, a score of 82% on Ms. Smith's test corresponds to the 
-th percentile, i.e.
where 
is a random variable denoting scores on Ms. Smith's test.
Transform to 
, which follows the standard normal distribution:
which means Amy scored at the 99.98th percentile.
This makes it so that Karina needs to score 
on Mr. Adams' test so that
Their test scores have the same 
score computed above, so
so Karina needs to get a test score of at least 83.5%.
Final answer: solve for the the dividend and the divisor. Then divide and you should have the answer of 560
