Answer:
She will have $2792 at the end of her four year investment
Step-by-step explanation:
The compound interest formula is given by:
Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.
Gift of $2500:
This means that 
She shopped around and found a 4 year GIC investment that earns 2.8% interest annually.
This means that 
.
How much will Anna have at the end of her four year investment?
This is A(4). So
She will have $2792 at the end of her four year investment
Answer:
x=9
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
5(3x+8)=175
(5)(3x)+(5)(8)=175(Distribute)
15x+40=175
Step 2: Subtract 40 from both sides.
15x+40−40=175−40
15x=135
Step 3: Divide both sides by 15.
15x/15=135/15
x=9
Answer:
The third one
Step-by-step explanation:
Dont give up i understand that it is hard but i promise it will get better hang in there friend
First let's understand the discriminant. Discriminant is an equation of D = b²-4ac. Discriminant is to find how many solutions do the equation have. In case for Quadratic Equation, there are 3 types of solutions which are:
- No solutions or D < 0 — When D < 0, the equation does not have real roots.
- One solution or D = 0 — When D = 0, the equation has one real root.
- Two solutions or D > 0 — When D > 0, the equation has two real roots.
To find discriminant graphically, we need to know that the x-axis plane represents the solutions to the equations. All equations can be drawn as a graph. Some graphs do not intersect x-axis while some graph do.
- If a graph intersects x-axis, the equation for that graph has solutions.
- If a graph doesn't intersect x-axis, the equation doesn't have any real solutions.
You may also notice that some graphs intersect x-axis more than one point. Like I said that the x-axis represents the roots or the solutions. Intersecting x-axis "n" times means that the equation has "n" roots.
For example, if a graph intersects x-axis 8 points - the equation has 8 roots or solutions.
From the graph, the parabola intersects on x-axis just only one point. That means there is only one solution. The question asks to find the discriminant of the function. Recall that if D = 0, there's only one real root. Therefore the discriminant for the function is zero.
Answer
- The discriminant for function is zero.
Let me know if you have any doubts!
A polynomial with 9 turning points has a power of 10. It must have one more power than the number of turning points.
