Answer: x" = 5.69
Step-by-step explanation:
The graphic solution is attached.
Verifying the solution:
Existence condition: x > 0
2x - 4 = √x + 5
√x =2x - 4 - 5
√x =2x - 9 (²)
x = (2x - 9)²
x = 4x² - 36x + 81
4x² - 36x - x + 81 = 0
4x² - 37x + 81 = 0
Δ = -37² - 4.4.81 = 1369 - 1296 = 73
x = 37 ±√73/8
x' = 3.55
x" = 5.69
checking:
2*3.55 - 4 = 3.1
√3.55 + 5 = 6.88 Its not the same ∴ 3.55 is not a solution
2*5.69 - 4 = 7.39
√5.69 + 5 = 7.39 ∴ it's the only solution
Where is the pic ?i can’t see it
Answer:
$12,400
Step-by-step explanation:
Given:
Week earning + 9% commission = $1,916
Weekly Earning = $800
Commission for the Week = $1,916 - $800 = $1,116
Let total sales for the week = x
Therefore, x = ($1,116 * 100)/9
x = $12,400
The surface area of a cylinder that the radius tripled and it height is brought down to half is 3890.46 inches²
<h3 /><h3>How to find the surface area of a cylinder?</h3>
Surface area of a cylinder = 2πr(r + h)
Therefore,
radius is tripled = 3(7) = 21 inches
height is shrunk half its size = 17 / 2 = 8.5 inches
Therefore,
surface area = 2 × 3.14 × 21 (21 + 8.5)
surface area = 131.88(29.5)
surface area = 3890.46 inches²
learn more on cylinder here: brainly.com/question/16551354
#SPJ1
Answer:
D
Step-by-step explanation:
Alright, so we know that they can unload 25 trucks in 5 hours.
If we do 25/5 We find out that they can unload <u>5 trucks per hour</u>
Unfortunately, that is not one of the answers, so we will have to do some investigating to find something that is <u>equivalent</u>!
After evaluating the available answers, you can find that answer D lines up with our first assumption!
Every 1/5th of an hour the Fast-Pack people can unload a truck!
We can calculate this by writing:
1/5*25=<u>5</u>
<u></u>
Please let me know if you have any confusion! :)
