Answer:
30
Step-by-step explanation:
Use the fundamental counting principal.
There are 6 possible outcomes on one spinner and 5 possible outcomes on the other spinner. Multiply the possible outcomes together to get the total possible outcomes.
6 x 5 = 30
Answer:
it has infinitely many solutions because it can be solved by many technics
Step-by-step explanation:
hope my answer helps mark me brianliest plz
Answer:
Option B.
{–9 + i√225 / 24, –9 – i√225 / 24}
Step-by-step explanation:
12a² + 9a + 7 = 0
Using formula method, the solutions to the equation can be obtained as follow:
Coefficient of a² (a) = 12
Coefficient of a (b) = 9
Constant (c) = 7
a = –b ±√(b² – 4ac) / 2a
a = –9 ±√(9² – 4 × 12 × 7) / 2 × 12
a = –9 ±√(81 – 336) / 24
a = –9 ±√(– 225) / 24
Recall
–225 = –1 × 225
Thus,
–9 ±√(– 225) / 24 = –9 ±√(–1 × 225)/24
Recall
√(–1 × 225) = √–1 × √225 = i√225
Thus,
–9 ±√(–1 × 225)/24 = –9 ± i√225/24
Therefore,
a = –9 ± i√225/24
a = –9 + i√225 / 24 or –9 – i√225 / 24
Therefore, the solutions to the equation are:
{–9 + i√225 / 24, –9 – i√225 / 24}
Answer: 75 min
Step-by-step explanation:
First lets subtract 20 from the total to get the amount of minutes she used
31.25 - 20 = 11.25
Now divide 11.25 by 0.15
11.25/0.15 = 75
She used 75 min