No 6.2 could be put as 6.20 and 1.75
6 is bigger than 1
Brainliest + points
Answer:
C is correct because if she pays 700 dollars for a car payment her amount of money to spent money ratio will be above the recommended amount of spent money percentage to amount of money ratio, therefore meaning she will be in credit overload.
Step-by-step explanation:
6x+4y=34
A.6
B.2
C.-2
D.-4
For this case we have the following system equations:
To use the elimination method we must multiply the first by -2. So:
In this way, if we add the equations, the variable y is eliminated.
Answer:
-2
Option C
Answer: The solutions are :
Our equation is
and we know that:
then we can write our equation as:
And using the identity:
where a = x and b = 2, then our equation is:
them, if x = 2 the first part is zero, so x = 2 is a solution, and now we need to see the second part in order to find the complex solutions.
Here we need to use Bhaskara:
if for a, b and c constants, then:
x =
in our problem we have:
So here we have two complex solutions: and .
Answer:
Solutions are 2, -1 + 0.5 sqrt10 i and -1 - 0.5 sqrt10 i
or 2, -1 + 1.58 i and -1 - 1.58i
(where the last 2 are equal to nearest hundredth).
Step-by-step explanation:
The real solution is x = 2:-
x^3 - 8 = 0
x^3 = 8
x = cube root of 8 = 2
Note that a cubic equation must have a total of 3 roots ( real and complex in this case). We can find the 2 complex roots by using the following identity:-
a^3 - b^3 = (a - b)(a^2 + ab + b^2).
Here a = x and b = 2 so we have
(x - 2)(x^2 + 2x + 4) = 0
To find the complex roots we solve x^2 + 2x + 4 = 0:-
Using the quadratic formula x = [-2 +/- sqrt(2^2 - 4*1*4)] / 2
= -1 +/- (sqrt( -10)) / 2
= -1 + 0.5 sqrt10 i and -1 - 0.5 sqrt10 i
Answer:
Step 1: Make sure the bottom numbers (the denominators) are the same.
Step 2: Add the top numbers (the numerators), put that answer over the denominator.
Step 3: Simplify the fraction (if needed)
Step-by-step explanation: