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4 years ago

PLEASE HELP ME FOR EXTRA POINTS AND BRAINLIEST ANWSER

Mathematics

1 answer:

Novay_Z [31]4 years ago

7 0

The answer is D because you need to know the lengths of the hypotenus and the opposite side to figure out sin

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R_36=68 what is the value of r?

Airida [17]

Answer:

r = 104

Step-by-step explanation:

r - 36 = 68

r → 68 + 36 = 104

8 0

4 years ago

An electronic product contains 40 integrated circuits. The probability that any integrated circuit is defective is 0.01, and the

neonofarm [45]

Answer:

There is a 33.10% probability that there is at least one defective integrated circuit.

Step-by-step explanation:

For either integrated circuit, there are only two possible outcomes. Either they are defective, or they are not. This means that we can solve this problem using the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}$

In which $C_{n,x}$ is the number of different combinatios of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And $\pi$ is the probability of X happening.

In this problem

The electonic product contains 40 integrated circuits, so $n = 40$ .

The probability that any integrated circuit is defective is 0.01, so $\pi = 0.01$

What is the probability that there is at least one defective integrated circuit?

Either there is at least one defective integrated circuit, that is probability $P(X > 0)$ , or there are no defective integrated circuits, that is probability $P(X = 0)$ . The sum of these probabilities is decimal 1. We want to find $P(X>0)$ .

$P(X > 0) + P(X = 0) = 1$

$P(X > 0) = 1 - P(X = 0)$

$P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}$

$P(X = 0) = C_{40,0}.(0.01)^{0}.(0.99)^{40} = 0.6690$

$P(X > 0) = 1 - P(X = 0) = 1 - 0.6690 = 0.3310$

There is a 33.10% probability that there is at least one defective integrated circuit.

3 0

3 years ago

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The perimeter of a square is 4 times as great as the lenght of any of its sides. Determine if the perimeter of a square is propo

egoroff_w [7]

P= 4 times L so yes

3 0

3 years ago

Is number 4 right? please explain how you do these types of problems

Fantom [35]

Answer:

Step-by-step explanation:

I haven't learned this but my brother says its incorrect, he is in Highschool, though he doesn't use Brainly.

4 0

3 years ago

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One solution, infinitely many solutions, or no solution for #13?

Lady_Fox [76]

Answer:

For this system of equations there is infinitely many solutions.

Step-by-step explanation:

Given the equations: -4x + 4y = 32 and 3x + 24 = 3y, we need to first get them both in standard form (Ax + By = C) in order to complete the method of elimination to solve. The first equatoin is already in standard form, however, in order to convert the second equation, we will need to use inverse operations to move the '3x' to the other side of the equation by subtraction of this term from both sides: 3x - 3x + 24 = 3y - 3x or 24 = -3x + 3y. Rearranging the equation gives us: -3x + 3y = 24. In order to use elimination to solve, we must first multiply the first equation be a factor of 3 and the second equation by a factor of -4 in order to have opposite coefficients:

3[ -4x + 4y = 32] = -12x + 12y = 96

-4{-3x + 3y = 24] = 12x - 12y = -96

You can see that if we add these too equations together, we get 0 = 0, which indicates that they are both the same line, making our answer infinitely many solutions.

8 0

3 years ago

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