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Akimi4 [234]
4 years ago
15

What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39 degrees w

ith the horizontal?
Mathematics
1 answer:
hammer [34]4 years ago
8 0
Assuming there is no friction 
minimum force = 22.6 * 32 * sin 39  = 455.1 
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Fraction as a decimal , use bar notation id necessary
Charra [1.4K]
So it should be to the nearest tenth or hundredth ?
3 0
3 years ago
A contractor is considering a sale that promises a profit of 26,000 with a probability of 0.7 or a loss (due to bad weather stri
Lady bird [3.3K]

Answer:

A

Step-by-step explanation:

The expected profit would be the sum of all the possibility multiplied. It means,

<em>"We need to multiply the profit by its possibility and add it with the product of the loss and its possibility."</em>

<em />

This will be the expectation, or expected profit.

Let's do it:

Expected Profit = (26,000)(0.7) + (-8000)(0.3) = 15,800

The correct answer is A

7 0
4 years ago
Read 2 more answers
2/5 x 6/7= I cant figure out this question.
telo118 [61]

Answer:

I got 0.3428571429

Step-by-step explanation:

I got it by inputting (2/5)*(6/7) into my calculator, but if you need more let me know

4 0
2 years ago
Read 2 more answers
10. If R is the midpoint of QS, find QS.
Art [367]

<u>Statement</u><u>:</u>

R is the midpoint of QS.

<u>To </u><u>find </u><u>out:</u>

The measure of QS.

<u>Solution</u><u>:</u>

  • QR + RS = QS
  • Since R is the midpoint of QS, then QR = RS.
  • QR = 2x + 16, RS = 5x - 17.
  • Therefore, 2x + 16 = 5x - 17
  • or, 2x - 5x = -17 - 16
  • or, -3x = -33
  • or, x = -33 ÷ -3
  • or, x = 11
  • Therefore, QR = 2(11) + 16
  • = 22 + 16 = 38
  • So, QS = 2QR
  • = 2 × 38
  • = 76

<u>Answer</u><u>:</u>

QS is 76.

Hope you could understand.

If you have any query, feel free to ask.

8 0
3 years ago
A patient has a twenty-centimeter incision along the abdomen that must have a topical antibiotic ointment applied for every dres
rodikova [14]

Answer:

The amount of medication to be applied is approximately 7.87 inches

Step-by-step explanation:

The given parameters are;

The length of the incision the patient has = 20 cm

The length of the application of the antibiotic = The length of the incision the patient has

∴ The length of the application of the antibiotic = 20 cm

The amount of medication to be applied = 20 cm = 7.874016 inches ≈ 7.87 inches

4 0
3 years ago
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