answer
c) 2520
Step-by-step explanation:
1st digit 1 of 7
2nd digit 1 of 6
3rd digit 1 of 5
4th digit 1 of 4
5th digit 1 of 3
7*6*5*4*3=2520 combination
(a) Answer: One solution.
Explanation: two lines that have same slope with opposite sign will necessarily cross each other at a single point, as one is "pointing uphill" and the other "downhill."
(b) Answer: Infinitely many solutions.
Explanation:
2x + 3y = 5.5
4x + 6y = 11 | divide by 2
-->
2x + 3y = 5.5
2x + 3y = 5.5
--> equations are identical.
2x + 3y = 2x + 3y
so any (x,y) will satisfy this equation. This means infinitely many solutions.
(c) Answer: One solution
Explanation:
Continuing the two lines it becomes obvious they will cross at one point (the solution)
(d) Answer: No solution
Explanation: If the two lines are parallel, they will never cross (by definition of "parallel"). Therefore there will be no solution to the corresponding linear system.
Answer:
ez, answer choice number 4
Step-by-step explanation:
y=-1/8x(this is the slope) -4(this is the y intercept
Answer: She should buy 3 bottles
Step-by-step explanation: 1 quart = 4 cups. 4x3=12
Answer:
(a×b)×c = 0 means that vector c parallel to vector (a×b). But because (a × b) ⊥ a and (a -b) ⊥ b so
c ⊥ a and c ⊥ b.
Hope this helps, have a nice day! :D
