Answer:
Zero.
Step-by-step explanation:
The determinant of the coefficient matrix of the system is zero, since every coefficient is equal to zero.
Answer:
1x+ 1y =11
10x + 5y = 80
x = the cost of a taco = $5
y = the cost of a burrito = $6
Step-by-step explanation:
x = the cost of a taco
y = the cost of a burrito
1x+ 1y =11
10x + 5y = 80
rearange 1st equation as y = 11 -x and plug in into the 2nd one for y:
10x + 5( 11-x) = 80 distribute left side
10x + 55 - 5x = 80 combine like terms
10x - 5x = 5x
5x + 55 = 80 subtract 55 from both sides
5x = 80 - 55
5x = 25 divide by 5
x = 5
plug in for y in 1st equation y = 11--x =11-5 = 6
Answer:
(A) put the 7 in front of the log
log 6 (6)^7 = x
7 * log 6 (6) = x
7 * 1 = x
x = 7
Answer:
Slope = 3
Step-by-step explanation:
Slope = (y2-y1)/(x2 - x1)
In this case,
Slope = (-9 + 3) / (-4 + 2)
= -6/-2
= 3
Answer: 22
Step-by-step explanation:
