Answer:
3,800 = 38 * 100
Step-by-step explanation:
3.8 * 100
= 380
38 * 100
= 3,800
There is no missing exponent or factor, it's just 3.8 needs to be multiplied by 10.
Answer:
290
Step-by-step explanation:
Surface area=2(wl+hl+hw), 2(25+60+60), 145*2, 290
Answer:
3 * 3 3/5
Step-by-step explanation:
If you are adding 3 3/5 three times, than you can multiply 3 3/5 to get the same answer, just faster.
Angles of a pentagon = 108°
angles of a square = 90°
108+90
answer= b
We will assume A×B = B×A and show that A and B are necessarily the same.
Assume A×B = B×A. Let a ∈ A and b ∈ B. Then (a,b) ∈ A×B. Since A×B = B×A, we have (a,b) ∈ B×A. That is, a ∈ B and b ∈ A. Therefore, a ∈ A implies a ∈ B and b ∈ B implies b ∈ A. So A = B, as we had set out to do.
