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Phantasy [73]
3 years ago
12

What is the value of the expression 16-(5.2×3)+7

Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer:

7.4

1. Do the parentheses first

2. Then do multiplication/division

3. Then do subtraction/addition

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430 randomly selected light bulbs were tested in a laboratory, 224 lasted more than 500 hours. Find a point estimate of the prop
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The estimated portion of light bulbs that last more than 500 hours will be
x=∑xn=224/430=0.521=52.1%
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What does ⅔ X 15 = equal
frez [133]

Answer:

10

Step-by-step explanation:

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8 0
3 years ago
Based on a​ survey, assume that 43​% of consumers are comfortable having drones deliver their purchases. Suppose we want to find
svlad2 [7]

Answer:

The probability of getting two consumers comfortable with drones is 0.3424.

Step-by-step explanation:

The probability that a consumer is comfortable having drones deliver their purchases is, <em>p</em> = 0.43.

A random sample of <em>n</em> = 5 consumers are selected, and exactly <em>x</em> = 2 of them are comfortable with the drones.

To compute the probability of getting two consumers comfortable with drones followed by three consumers not​ comfortable, we will use the Binomial distribution instead of the multiplication rule to find the probability.

This is because in this case we need to compute the number of possible combinations of two consumers who are comfortable with drones.

So, <em>X</em> = number of consumers comfortable with drones, follows a Binomial distribution with parameters <em>n</em> = 5 and <em>p</em> = 0.43.

Compute the probability of getting two consumers comfortable with drones as follows:

P(X=x)={5\choose x}\ 0.43^{x}\ (1-0.43)^{5-x};\ x=0,1,2,3...

P(X=2)={5\choose 2}\ 0.43^{2}\ (1-0.43)^{5-2}

               =10\times 0.1849\times 0.185193\\=0.342421857\\\approx 0.3424

Thus, the probability of getting two consumers comfortable with drones is 0.3424.

4 0
3 years ago
In the 24,143 how is the 4 in the thousands place different than the 4 in the tens place?
irinina [24]
If you can see, the 4 in the thousands place is bigger than the tens place. It is pretty obvious. Thousand is bigger than ten, right? If you had ten shirts and thousand shirts, it would be a big difference. Start from the right. 
Ones, Tens, Hundred, Thousands, Ten thousands, Hundred thousand, Millions, Ten millions, Hundred millions, Billion, Ten billion, Hundred billion, Trillion, Ten trillion, Hundred trillion, Quadrillion, Ten quadrillion, Hundred quadrillion, Quintillion, ten quintillion, hundred quintillion, sextillions, ten sextillions, hundred sextillions, octillions,ten octillions, hundred octillions, etc...
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