Yeah i can help you, alright so start off by see what two number will add up to equal -1 then see if those two numbers multiply to get -6. Your two numbers will be -3 and a 2 (x-3)(x+2) because -3+2=-1 and -3*2=-6 Hope this helps
Given that r = (7,3,9) and v=(3,7,-9), evaluate r + v. A. (-21,-21,81) B. (10,10,0) C. (21,21,-81) D. (-10,-10,0)
ololo11 [35]
Answer:
B. (10, 10, 0)
Step-by-step explanation:
Each component of the sum is the sum of corresponding components:
r + v = (7, 3, 9) +(3, 7, -9) = (7+3, 3+7, 9-9) = (10, 10, 0)
Answer: z = 280
Step-by-step explanation:
If two variables are directly proportional, it means that an increase in the value of one variable causes an increase in the value of the other variable. Also, a decrease in the value of one variable causes an decrease in the value of the other variable.
The variable z is directly proportional to x. If we introduce a constant of variation, the expression would be
z = kx
When x is 10, z has the value 140. It means that
140 = 10k
k = 140/10
k = 14
The equation becomes
z = 14x
the value of z when x = 20 is
z = 14 × 20
z = 280
Answer:
20 pieces of tape.
Step-by-step explanation:
Okay, so first you have to realize that 1/4 of a foot means there is 4 pieces in a foot. So at this point you need to say there is 5 groups of four because 4 pieces of tape in a foot. So 5 times 4 is 20 pieces of tape.
your answer is (c) comment if there is queries
