Hi Stacey
9x^2+5x-12
Answer : Doesn't factor
I hope that's help and please if you have questions you can ask me !
Answer:
Average of number is equal to sum of numbers by total no.
i.e.,
Now when numbers/amounts are fraction then there is one extra step which is to add the fractions.
Lets say we have to find average of 2 fractions i.e.,
Step 1 : First to add the fractions find the LCM of denominator as There are unlike fractions
3 = 1 × 3
4 = 1 × 4
LCM of 3 and 4 = 3 × 4 = 12
Step 2: To make them like fraction we find equivalent fraction of each fraction whose denominator equal to 12
Step 3: Adding both fractions
Step 4: put these value in average formula
Step 5: Now we divideby 2 using fraction division .i.e., multiply the reciprocal of divisor with dividend
here 2 is divisor
Reciprocal =
Following these steps Average of fractional amount of any no can be found.
sqrt(-49) / [ (7-2i) - (4+9i) ]
= 7i / (3 - 11i)
= 7i (3+11i) / [ (3 - 11i) (3 + 11i) ]
= (21 i - 77) / (9 + 121) = choice (d), (-77 + 21i) / 130
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
Apply log both sides