To get from his house to the lecture hall at school, lin walked west 651 feet. after class, he walked northeast 910 feet to the gym. finally, he walked 615 feet back to his house from the gym. what general direction did lin walk from the gym to his house, and what type of triangle did his walking path form?

Southwest, creating an obtuse triangle

Step-by-step explanation:

Lin walked west to form one side of the triangle, then northeast, and then southwest to form the remaining two sides. The amount of feet walked on each side determines that it is an obtuse triangle.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d