Answer:
Step-by-step explanation:
5(t+3)=-3.5
distribute
5t+15=-3.5
subtract 15 from both sides
5t= -18.5
divide both sides by 5
t=-3.7
Answer:
R = P+C
Step-by-step explanation:
P = R-C
+C +C
R = P+C
Answer:
7/1000
Step-by-step explanation:
There are 3 cards and only 1 card is off.
If you pick the odd card first and do not replace it there is no chance of picking a second odd card.
The probability would be 0
Answer: D.
Step-by-step explanation:
You want to cube each term in the parentheses. When you take an exponent to an exponent, you just multiply them. You get (27m^-12). In order to get rid of that negative exponent, you should put a one over the m term and make -12, +12:

Multiply the numerators to get:

You now have:

When you divide exponents, you subtract them. 5 - 12 = -7
You have m^-7 which is the same as 1/m^7. Finally, mulitply that by the 81 we left out to get the answer of D.