Answer:
(-1, 2)
Step-by-step explanation:
The quadratic formula is:
and
Let's identify our a, b, and c values:
a: -1
b: 1
c: 12
Plug in the values for a, b, and c into the equation. Let's do the first equation:
Simplify everything in the radical:
Simplify the radical:
Combine like terms:
Simplify:
This is one solution, now, let's solve for the other equation:
Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:
Combine like terms:
Simplify:
Your final answers are:
I think it might be 36. I’m not sure if this is the right equation but i just did: 76 - 40 and i got 36. So make sure i was (right??) i added 36 and 40 together and i got 76. djdkdks not sure if that was right
2.5=10/100x
Simplify
2.5=1/10x
Flip the equation.
1/10x=2.5
Multiply both sides by 10.
10*(1/10x)=(10)*(2.5)
x=25
Answer:
0.1057
Step-by-step explanation:
We solve the above question using z score formula
z = (x-μ)/σ, where
x is the raw score = 32 oz
μ is the population mean = 33 oz
σ is the population standard deviation = 0.8oz
For x < 32 oz
z = 32 - 33/0.8
z = -1.25
Probability value from Z-Table:
P(x<32) = 0.10565
Approximately = 0.1057
Therefore, the proportion of packets that are underweight (i.e. Weight less than 32 oz.) are 0.1057.