The second to last one, looks like a really tall speed bump
<u>Answer:</u>
BC = 18 cm
<u>Step-by-step explanation:</u>
As we can see from the diagram:
AB + BC + CD = AD
⇒ 10 cm + BC + 11 cm = 39 cm
⇒ BC + 21 cm = 39 cm
⇒ BC = 39 cm - 21 cm
⇒ BC = 18 cm
Answer:
Step-by-step explanation:
79+80+92+92+81+100+88+98+71+100+91+90
=1,062/12 = 88.5
Answer:
x=2, x=-2
Step-by-step explanation:
3x²-3+4x²-12=13
7x²=13+12+3
7x²=28
x²=4
x=-2
x=2
Answer:
de from a shuffled pack, you win $9.
Find the expected value you win (or lose) per game.
Step-by-step explanation:
to join in his game. The rules are: To play you must pay him $2. If you pick a spade from a shuffled pack, you win $9.
Find the expected value you win (or lose) per game.
