Answer:
Step-by-step explanation:
-2x²=-8x+8 means : -2x²+8x-8
the discrinant of the quadratic equation is : delta = b²-4ac
when a=-2 and b=8 and c= -8
calculate delta = (8)²-4(-2)(-8) ......continu
Answer:
49
Step-by-step explanation:
-11 2/3 x (-4 1/5) =
negative times negative = positive
Change the mixed numerals into fractions.
= 35/3 × 21/5
Multiply the numerators together. Multiply the denominators together.
= (35 × 21)/(3 × 5)
Simplify.
= (7 × 5 × 7 × 3)/(3 × 5)
Divide the numerator and denominator by 3 and by 5.
= 7 × 7
= 49
Answer:
The first should be (x+6, y-(-10).
The others, not sure but you have to plug them in.
Answer:
x=10
Step-by-step explanation:
1) combine ALL like terms
5x-4+5x-4+3x+58=180
5x+5x+3x=13x
-4-4+58=50
13x+50=180
2) subtract both sides by 50
13x+50-50=180-50
13x=130
divide both sides by "13"
x=10
Hope this Helps!
Answer:
I believe the answer is $14.85
Step-by-step explanation:
This is because 3x4.95 is 14.85.
