Answer:
False
Step-by-step explanation:
√(-9)^2=9
Solution is 9 not -9
Thus it is false
The discriminant of a quadratic equation is a parameter that is used to determine the nature of the roots of the equation. The discriminant can be determined by b2- 4ac. In this case, upon substitution, 25- 4*2*7 = -31 in which the roots are negative and iimaginary.
Answer:
The answer is 12 times 23
Answer:
The bill is $60. You will recieve $40 in change.
Step-by-step explanation:
48 x 0.07 = $3.36
48 x 0.18 = $8.64
8.64 + 3.36 = $12
48 + 12 = $60
100 - 60 = $40
Hope this helps! Please mark as brainliest.
Answer:
The lines intersect once at (2, −1).
A graphic solution to a system of equations is only as accurate as the scale of the paper or precision of the lines. At times the point of intersection will need to be estimated on the graph. When an exact solution is necessary, the system should be solved algebraically, either by substitution or by elimination.
Step-by-step explanation:
hope i helped
