Which pair of triangles can be proven congruent by sas?

The first triangle.

Step-by-step explanation:

SAS is Side-Angle-Side.  It means that we have two sides of one triangle congruent to the corresponding two sides of the other triangle, and the included angle of the first triangle congruent to the corresponding included angle of the second triangle.

In the first triangle, the base sides are marked congruent.  The side that connects the triangles is congruent to itself.  This is two sides; the right angle falls between them, making it the included angle.  This is SAS.

my answer got deleted but it's a

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560