Answer:
Move all terms to the left side of the equation and simplify.
3x²−12x−21=0
Use the quadratic formula to find the solutions.
(−b±√b²−4(ac))/2a
Substitute the values a=3, b=−12, and c=−21 into the quadratic formula and solve for x.
(12±√(−12)²−4⋅(3⋅−21)0/2⋅3 Simplify => x=2±√11
The result can be shown in multiple forms.
Exact Form: x=2±√11
Decimal Form: x=5.31662479…,−1.31662479…
Step-by-step explanation:
Opposite- 5/8
reciprocal- -8/5
absolute value- 5/8
Answer:
.....................
Step-by-step explanation:
Answer:
116
Step-by-step explanation:
All angles will add up to 360°
So just do 360 -55 -79 -110 = 116
Answer:
Jeff had in the account 3,623.85 after 3 years
Step-by-step explanation:
Investment: p=3,000
Interest: i=6.5%=6.5/100→i=0.065
Time (in years): t=3
A(3)=?
A(t)=p(1+i)^t
t=3→A(3)=p(1+i)^3
Replacing the given values:
A(3)=3,000 (1+0.065)^3
A(3)=3,000 (1.065)^3
A(3)=3,000 (1.207949625)
A(3)=3,623.848875
Rounding to the nearest hundredth:
A(3)=3,623.85