Answer:
3/88
Step-by-step explanation:
Answer:
-42
Step-by-step explanation:
First evaluate the expressions in parenthesis;
-7+5 [(-3-2)^2 +(2^3 -40)]
-7+5 [(-5)^2 +(-32)]
-7+5 [25+(-32)]
-7+5 [-7] Multiply 5 by -7
-7 + (-35)
-42 This is the answer.
See image for naming of the sides: the medians are
ab, bc, and ac; and sides are a, b, and c
Pick one median, say, ab. The following are true:
ab < a
ab < b
->
ab + ab < a + b
ab < 0.5*(a+b) | add 0.5*c to the right hand side (does not change inequality)
ab < 0.5(a+b+c) = half perimeter
so ab < half perimeter
Same argument for bc, and ac holds.
Answer:
0.45
Step-by-step explanation:
1. 3.15÷7=0.45
2. 3.20÷8=0.40
3. 4.10÷10=0.41
4. 4.18÷16=0.26