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Leviafan [203]
3 years ago
7

When h has the value 4 calculate 16-3h

Mathematics
1 answer:
Westkost [7]3 years ago
6 0


Substitute the 4 for h so you have:

16-3*4

16-12

4

Therefore, when h=4, 16-3h=4.

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Bob discovers a box with 30 identical, used, rechargeable batteries in his attic. Suppose each of them is equally likely have so
lukranit [14]

The question is incomplete! The complete question along with answer and explanation is provided below.

Question:

Bob discovers a box with 30 identical, used, rechargeable batteries in his attic.

Suppose each of them is equally likely have some charge in it, or to have run out of charge. What is the probability that:

a) All of them are out of charge?

b) 20% of them are out of charge?

Answer:

Part A) P = 9.31x10⁻¹⁰

Part B) P = 5.529x10⁻⁴

Step-by-step explanation:

It is given that probability of success or failure is 50%

Let

failure = battery is out of charge

success = battery is not out of charge

Psuccess = p = 0.50

Pfailure = q = 1 - Psuccess = 0.50

Part A) All of them are out of charge?

The probability can be found by using binomial distribution formula

P = nCr (p^r) (q^n-r)

where r is the number of success

n = 30, r = 30 and n - r = 30 - 30 = 0

P = ₃₀C₃₀(0.50)³⁰(0.50)⁰

P = 9.31x10⁻¹⁰

Part B) 20% of them are out of charge?

Out of charge batteries = 0.20*30 = 6

n = 30, r = 24 and n - r = 30 - 24 = 6

P =₃₀C₆(0.50)²⁴(0.50)⁶

P = 5.529x10⁻⁴

5 0
3 years ago
4. What is the experimental probability of spinning orange?
9966 [12]
Answer:6/25

To get this you just add up all the spins which equals 50 so this then means 50 is your denominator
Then because it’s asking for the orange you need to look at the orange colom and it say 12 so this is then this is the numerator
So it would be 12/50 but you can make this smaller so you divide by 2 and get 6/25

Hope this helped!

7 0
3 years ago
Read 2 more answers
A rectangle room measures 13 feet by 15 feet. The ceiling fan is 8 feet high. Find the total area of all 4 walls that will need
aniked [119]

Answer:

448 ft^2

Step-by-step explanation:

The area of the walls is the perimeter of the room multiplied by the height.

P = 2(L + W)

P = 2(13 ft + 15 ft)

P = 2(28 ft)

P = 56 ft

A = perimeter * height

A = 56 ft * 8 ft

A = 448 ft^2

4 0
3 years ago
Help me
Katarina [22]
The answer is 5

9+6 = 15
15/3 is 5
4 0
3 years ago
Read 2 more answers
What is the value of the angle ?
Ivan

Answer:

47°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles

124° is an exterior angle , thus

77 + ? = 124 ( subtract 77 from both sides )

? = 47°

8 0
3 years ago
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