Answer:
C
Step-by-step explanation:
because your finding 3 cubed then finding the opposite, cubed root
The given system of equations has only one solution
<em><u>Solution:</u></em>
Given system of equations are:
2y = x - 9 ------- eqn 1
5x - 4y = 18 ------- eqn 2
<em><u>Let us first solve the system of equations</u></em>
From eqn 1,
x = 2y + 9 ----- eqn 3
<em><u>Substitute eqn 3 in eqn 2</u></em>
5(2y + 9) - 4y = 18
10y + 45 - 4y = 18
6y = 18 - 45
6y = -27
<em><u>Substitute the value of "y" in eqn 3</u></em>
Thus
Thus the given system of equations has only one solution
Answer:
x = 26, y = 11
Step-by-step explanation:
opposite sides are equal
Common denominators of 9 and 3 are 9. 27
Common denominators of 9 and 2 are 18 36
Answer:
To determine the nature of roots of quadratic equations (in the form ax^2 + bx +c=0) , we need to calculate the discriminant, which is b^2 - 4 a c. When discriminant is greater than zero, the roots are unequal and real. When discriminant is equal to zero, the roots are equal and real.