Answer:
-0.02976190476 or -17.1428571429
hope i helped
Answer:
x=9 y=5
Step-by-step explanation:
Let -4x+9y=9 be function 1 while x-3y=-6 be function 2
function 1 plus 4 times function 2
-4x+4x+9y-12y=-15
Simplify
-3y=-15
Divide each side by -3
y=5
Substitude y=5 into function 2
x-3(5)=-6
x-15=-6
add 15 to each side
x=9
Answer:
3n^2 -5n -6 = 9 This is a quadratic Equation.
3n^2 -5n -15 = 0
It is solved with the Quadratic Formula:
n = [-b +-sqr root (b^2 - 4ac)] / 2a
a = 3
b = -5
c= -15
n = [--5 +- sqr root(25 -4*3*-15)] / 6
n = [5 +- sqr root (25 + 180) / 6
n = [5 +-sqr root (205) ] / 6
n = 5 + 14.3178210633 / 6
n1 = 19.3178210633 / 6
n1= 3.2196368439
n2= 5 - 14.3178210633 / 6
n2 = -9.3178210633 / 6
n2 = -1.5529701772
Step-by-step explanation:
Answer:
x ≤ -1
Step-by-step explanation:
The probability is 1/1024.
Each tetrahedron has a 1/4 chance of landing on 3, since there are 4 sides and only one of them is marked 3.
Each tetrahedron roll is independent, since no roll is affected by another.
This means we multiply the probabilities:
1/4(1/4)(1/4)(1/4)(1/4) = 1/1024
