Question:
Yan is climbing down a ladder. Each time he descends 4 rungs on the ladder, he stopped to see how much farther he has to go. If Yan made eight stops with no extra steps, which expression best shows another way to write the product of the number of ladder rungs that Yan and climbed?
4+4+4+4
8+8+8+8
(-1)(4+4+4+4)
(-8) + (-8) + (-8) + (-8)
Answer:
Step-by-step explanation:
Given
<em></em>
<em> --- It is negative because he is climbing down</em>
![Steps = 8](https://tex.z-dn.net/?f=Steps%20%3D%208)
Required
An expression for the number of rungs climbed
To do this, we simply multiply the number of rungs by the steps taken.
![Total = Rungs * Steps](https://tex.z-dn.net/?f=Total%20%3D%20Rungs%20%2A%20Steps)
![Total = -4 * 8](https://tex.z-dn.net/?f=Total%20%3D%20-4%20%2A%208)
This can be rewritten as:
![Total = -8 * 4](https://tex.z-dn.net/?f=Total%20%3D%20-8%20%2A%204)
The product, when written as sum is:
Answer:
W = kq1q2 / r
Step-by-step explanation:
W varies jointly as the product of q1 and q2 and inversely as radius r
Product of q1 and q2 = q1q2
W = (k*q1"q2) / r
W = kq1q2 / r
Where,
W = work
q1 = particle 1
q2 = particle 2
r = radius
k = constant of proportionality
The answer is W = kq1q2 / r
Answer:
Step-by-step explanation:
because it's an absolute value inequality, there are two inequalities to solve
3x+3 ≤ 9 and 3x+3 ≥ -9, now we solve them separately
x ≤ 3 and x ≥ -4, which is -4 ≤ x ≤ 3
367.5, there are 367.5 8's in 2,940.
Hope this helps, if not, comment below please!!!!