Answer:
F = 160 pounds
B. 160 pounds
Step-by-step explanation:
F = k / l
Where,
F = amount of force needed
l = length of the lever
k = constant of proportionality
F = 240 when l = 24 inch
F = k / l
240 = k / 24
Cross product
240*24 = k
k = 5,760
Find F when l = 36 inch
Recall, k = 5,760
F = k / l
= 5,760 / 36
= 160
F = 160 pounds
The correct answer is B. 160 pounds
Answer: C(t) = 28000(0.811)^t
Step-by-step explanation:
it begins to depreciate at a rate of 18.9% annually. This means that the rate at which the value is decreasing is exponential. We would apply the formula for exponential growth which is expressed as
y = b(1 - r)^ t
Where
y represents the value of the car after t years.
t represents the number of years.
b represents the initial value of the car.
r represents rate of depreciation.
From the information given,
P = 28000
r = 18.9% = 18.9/100 = 0.189
Therefore
y = 28000(1 - 0.189)^t
y = 28000(0.811)^t
Where C(t) represents y, the function becomes
C(t) = 28000(0.811)^t
Answer:
Susan has the most money which is $72
Step-by-step explanation:
because john has $50 which is lower than $72 and kara has $65 which is lower than $72 so therefore susan has more money
Givens
a = 4.4 m/s^2 This is an acceleration and is positive.
vi = 10.2 m/s
t = 4.2 seconds
vf = ????? The cruising speed in this case is vf.
Formula
a = (vf - vi)/t Notice the 3 givens and what you seek determine the formula
Solve
4.4 m/s^2 = (vf - 10.2)/4.2 Multiply both sides by 4.2
4.4 * 4.2 = vf - 10.2
18.48 = vf - 10.2 Add 10.2 to both sides
18.48 + 10.2 = vf 8.28 is the second best answer.
28.68 = vf This is your cruising speed.
C <<<< Answer
Answer:
Step-by-step explanation:
Given the following question:
In order to solve one step inequalities, we solve how we would normally solve a one-step equation and then graph the answer on a number line.
<u>Now to graph the inequality on a number line, keep a few things in mind:</u>
. x is less than -20 which means the line would go the opposite way of the negative 20.
. < is a greater than sign, not a greater than or equal sign (≤) so the number line will have a open point.
. The number line will have a point on -20.
Hope this helps.