Answer:
d
Step-by-step explanation:
f(3)=5(3)²-7(4(3)+3))
=45-105
= -60
<span>Since the triangles are right triangles, the hypotenuse can be calculated using the Pythagorean theorem:
5²+12²=x²
x²=25+144, x²=169⇒x=√169
x=13
The hypotenuse of a smaller triangle is 13 units.</span>
Answer:
B
Step-by-step explanation:
Answer:
37674
Step-by-step explanation:
Note that the numbers form an arithmetic sequence

Y=16
X=7
I hope my work shows how I got my answer well enough! :-)