It’s the sum of the lengths of the three sides.
Positive 2, positive 1, zero, negative 1, negative 2
Answer:
-7
Step-by-step explanation:
substitute the given values into the expression
xy-<em>x</em>
<em>(</em>-2 times 3<em>)</em>-1
-6 - 1 = -7
Answer:
The last one.
Step-by-step explanation:
Use pythagorean theorem for all of them
a. 3, 4, 5
3^2+4^2?5^2
9+16?25
25=25
right
b. 5, 6, 7
5^2+6^2=7^2
25+36=49
61>49
acute
c. 64+81=144
145>144
acute
hope this helps!
