What kind of angles are ADB and BDC

A coordinate grid is shown below: A coordinate grid from negative 2 to 0 to positive 2 is drawn. There are three grid lines betw

Anastasy [175]

Answer:

Part A: 0

Part B: (-1,-1) since point (-1,1) is located in quadrent four when it is reflected over the y axis the second point would be located in quadrent three and the x and y would both be negative.

Step-by-step explanation:

3 0

3 years ago

6. Assume that a component passes a test is 0.85 and that components perform independently. What is the probability that the thi

Tanzania [10]

Answer:

3.90% probability that the third failure will occur on the tenth component tested

Step-by-step explanation:

For each component, there are only two possible outcomes. Either it fails, or it does not fail. Components perform independently. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

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

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

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

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

And p is the probability of X happening.

Assume that a component passes a test is 0.85

So they fail with probability of $p = 1 - 0.85 = 0.15$

What is the probability that the third failure will occur on the tenth component tested

First 9 components: Two failures, that is, P(X = 2) when n = 9.

10th component: Failure with probability 0.15.

So

$P = 0.15P(X = 2)$

In which

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

$P(X = 2) = C_{9,2}.(0.15)^{2}.(0.85)^{7} = 0.2597$

So

$P = 0.15P(X = 2) = 0.15*0.2597 = 0.0390$

3.90% probability that the third failure will occur on the tenth component tested

5 0

3 years ago

Aiden and gia went to a clothing store where all the items had a 7% sales tax added to their cost. before the tax was added aide

pshichka [43]

Answer:

a. $34.24

b. $33

Step-by-step explanation:

Hope this helps

5 0

3 years ago

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Type the correct number in the blank

Mademuasel [1]

Answer:

4.11

Step-by-step explanation:

7 0

3 years ago

Derek rolls a die many times and records the number of times he rolls a three. Arrange the following situations in order from th

mrs_skeptik [129]

The sentence sequence is "BDAC".

<u>Step-by-step explanation</u>:

Derek is rolling a die many times and he is recording when he rolls a dice of three. So we have to identify from largest to smallest.
The first largest is 30 times. Because of 3*10=30, so he rolls three ten times. So the first option is B.
The second largest is 20 times. Derek rolled dice three-six times because of 3*6=18. So the second option is D.
The third-largest is 10 times. In this, he rolls three times. Because of 3*3=9. So the option is A.
The final option is C. Derek rolls five times. 3*1=3. In this, he rolled only one time. So the sequence is BDAC.

5 0

3 years ago

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