Answer:
28/289
Step-by-step explanation:
7 red, 4 blue, and 6 white = 17 marbles
P ( red ) = number of red / total
= 7/17
Replace the marble
7 red, 4 blue, and 6 white = 17 marbles
P ( blue ) = number of blue / total
= 4/17
P (red, replace, blue) = 7/17* 4/17
=28/289
Answer:
3
lazy approach was with a graphic plotting program, but you can also calculate it. with the pq-formula.
p = -6
q = 9
x = -p/2 +- sqrt( (p/2)² - q)
x = -(-6)/2 +- sqrt ( (-6/2)² - 9)
x = 3 +- sqrt(9-9)
x = 3 +- sqrt(0)
x = 3 +- 0
x = 3
Answer:
Step-by-step explanation:
lets have one side =a
P=3a+a+(17+a)=52
P=5a+17=52
5a=52-17
5a=35
a=7
second side=21
third side=24
Since you have y alone on one side of the equation......
Use substitution and plug in 1/2x-4 for y in the other equation.

Distribute

Combine like terms

Add 8 to both sides

Divide by 4
and 
Plug this value in for x

Simplify

Multiply everything by 8 and simplify

Divide.....

Your answers are:

Answer:
2,800
A = 2000(1 + (0.1 × 4)) = 2800
A = $2,800.00