Answer:
the answer is X is 6,0 and Y is 0,3
Answer:
(-11 +/- sqrt 21) / 10
or
-0.64 , -1.56 to the nearest hundredth.
Step-by-step explanation:
9v^2 + 11v + 5 = 4v^2
5v^2 + 11v + 5 = 0
Using the quadratic formula:
v = [ - 11 +/- sqrt(11^2 - 4*5*5) ] / 2*5
= (-11 +/- sqrt 21) / 10
= -0.64 , -1.56 to the nearest hundredth.
Answer:
d. 24,000 at 3% and 8,000 at 5.5%
Step-by-step explanation:
Let the principal for the 3% loan be and that for the 5.5% loan be . Let their respective interests be and .
Then
From the question, the sum of the interests is 4640.
Also, the total amount borrowed is 32000.
To solve the last two equations simultaneously, multiply the second by 0.12 and subtract from the first (this eliminates ).
From ,
Hence, $24,000 was borrowed at 3% and $8,000 was borrowed at 5.5%.
9 is the Greatest Common Factor of those three values.
The length written in scientific notation is 85 x 10^-6