Answer:
C
Step-by-step explanation:
First, convert R as a percent to r as a decimal
r = R/100
r = 8/100
r = 0.08 rate per year,
Then solve the equation for A
A = P(1 + r/n)nt
A = 1,950.00(1 + 0.08/2)(2)(4)
A = 1,950.00(1 + 0.04)(8)
A = $2,668.71
A-b=21
5a-2b=18
We can use substitution here. Take the first equation and solve for A. (Picking this one because it's easy)
a = 21+b
Plugin to the second equation:5(21+b)-2b=18
Simplify: 105 + 5b - 2b = 18
Simplify: 105 + 3b = 18
Subtract both sides: 3b = 18-105
Simplify: 3b = -87
Divide: b = -29
Plug back into the first: a=21+b
a = 21 - 29
a = -8
Option D
Answer:
5 5/8
Step-by-step explanation:
2 1/4 * 2 = 4 1/2
2 1/4 / 2 = 1 1/8
4 4/8 + 1 1/8 = 5 5/8
-9v-6+7v=6
-2v-6=6
-2v=6+6
-2v=12
v=-6
Answer:
<h3> sum of the roots:

</h3><h3> product of the roots:

</h3><h3>
Step-by-step explanation:</h3>


From Vieta's formulas applied to quadratic polynomial we have:
if
then
sum of roots: 
product of the roots: 