By definition, congruent triangles should have all the corresponding sides and all the corresponding angles equal or congruent to each other. Thus, in the given question, all corresponding sides and angles of ΔEFG and ΔE'F'G' should be congruent. But, as we can see clearly it is given that, EF = 10 and E'F'= 12, thus, the corresponding sides EF and E'F' are not equal. Thus, we can never prove that:
Thus, 
Answer:
cosA = 0.6
Step-by-step explanation:
Using the Pythagorean identity
sin²A + cos²A = 1 ( subtract sin²A from both sides )
cos²A = 1 - sin²A ( take the square root of both sides )
cosA = ± 
Since only the positive value is required , then
cosA = 
= 
= 
= 0.6
Answer:
Alex will pay $48.75 after the discount.
Step-by-step explanation:
With the information provided, in order to find the amount Alex will pay after the discount, first, you have to find the amount of the discount by calculating 25% of the price and then, you have to subtract that discount from the price:
$65*25%=$16.25
$65-$16.25=$48.75
According to this, the answer is that Alex will pay $48.75 after the discount.
Im not 100% sure but I think it’s X-8.8
