Answer:
128.6
Step-by-step explanation:
I just did the math
A tetrahedron is also called a regular triangular pyramid.
option b is the correct answer.
2/4 and 1/2
Step-by-step explanation:
2/4 is 50 precent and 1/2 also means 50 precent so they are different numbers but are the same amount
Answer:
a > -9
Step-by-step explanation:
-9 + 2a < 3a
1. Add 9 to both sides
-9 + 2a + 9 < 3a + 9
2. Simplify
2a < 3a + 9
3. Subtract 3a from both sides
2a - 3a < 3a + 9 - 3a
4. Simplify
-a < 9
5. Multiply both sides by -1 (reverse the inequality)
(-a)(-1) > 9(-1)
6. Simplify
a > -9