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Natalka [10]
3 years ago
14

How far should Galileo walk up the inclined plane?

Mathematics
1 answer:
sergejj [24]3 years ago
4 0

Answer:

Step-by-step explanation:

150/x=sin 15

x=150/sin 15 ≈579.56 m

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Twenty percent of all telephones of a certain type are submitted for service while under warranty. Of these, 70% can be repaired
Talja [164]

Answer:

The required probability is 0.09875

Step-by-step explanation:

From the given information;

the probability of repairing the telephones = 0.70

the probability of the replaced = 0.30

Suppose we consider  Mto denotes the telephone that is submitted for service while under warranty and must be replaced.

Then;

p = P(S) = P(replaced | submitted) P(submitted)

= 0.30 × 0.20

= 0.06

Now, the probability that exactly two will end up being replaced under warranty given that it assumes  a binomial distribution where n = 10 and p = 0.06

P(X=2)=\bigg (^{10}_{2}\bigg) 0.06^2(1-0.06)^{10-2}

P(X=2)=\dfrac{10!}{2!(10-2)!}\times  0.06^2\times (0.94)^{8}

\mathbf{P(X=2)=0.09875}

7 0
3 years ago
What do I do in all of them!?! Plz help me!!!
Studentka2010 [4]
11. # of hot dogs= 2s
12. The amount of materials= 4w
13. y= 1.10m + 2
14. t= 0.08d
15. c= 0.25p
16. b= 0.05t + 49
3 0
3 years ago
Read 2 more answers
If the perimeter of a rectangle is 140 meters and the length is 5 meters less than 4 times the width, then what are the dimensio
ValentinkaMS [17]

Length (L): 4w - 5

width (w): w

Perimeter (P) = 2L + 2w

              140 = 2(4w - 5) + 2(w)

              140 = 8w - 10 + 2w

              140 = 10w - 10

               150 = 10w

                15 = w

Length (L): 4w - 5   = 4(15) - 5   = 60 - 5   = 55

Answer: width= 15meters, length=55 meters

6 0
3 years ago
Simplify square root of 8y/share root of y
lozanna [386]

Answer:

2\sqrt{2}

Step-by-step explanation:

We are required to simplify the following expression;

\frac{\sqrt{8y} }{\sqrt{y} }

Using the properties of radicals;

\frac{\sqrt{a} }{\sqrt{b}}=\sqrt{\frac{a}{b} }

The expression can be re-written as;

\sqrt{\frac{8y}{y}}=\sqrt{8}

Now;

\sqrt{8}=\sqrt{4*2}=\sqrt{4}*\sqrt{2}\\ \\2\sqrt{2}

8 0
3 years ago
Help Me! ASAP! Determine whether each equation has no solution, one solution or infinitely many solutions. Choose No Solution, O
ladessa [460]

Answer:

Step-by-step explanation:

(1). One solution

(2). Infinitely Many Solutions

(3). One solution

(4). No Solution

7 0
3 years ago
Read 2 more answers
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