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professor190 [17]
3 years ago
5

What is right and wrong???

Mathematics
2 answers:
Romashka [77]3 years ago
6 0
What? Sorry what’s the question?
Evgen [1.6K]3 years ago
6 0

Answer:

I believe the answers are all correct because i had just did the exact same thing and i got ti right.

Please consider giving me Brainliest

darrylh3333

:)

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Can anyone help me out with my homework?
kolezko [41]
The answer to your question is x=18
5 0
3 years ago
Read 2 more answers
What is the vertex of the parabola? Assume p > 0.​
Len [333]

Answer:

The vertex for parabola y²=4ax is (0,0)

and for (y-k) ²= 4a(x+h), vertex is (h, k).

But you have not given the equation of parabola in the equation.

3 0
3 years ago
What is the value of x? ​
Aliun [14]

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

7 0
3 years ago
Simplify the ratio 24:81
gizmo_the_mogwai [7]

Answer:

8 to 27

Step-by-step explanation:

3 0
2 years ago
Imagine that you have developed a genetic test to detect the dominant allele (A) that cause a rare genetic condition. As with mo
s344n2d4d5 [400]

Answer:

Correct option: (B) 1.495%.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = the test is positive.

<em>A</em> = a person with the dominant allele

The information given are:

P(X|A)=1\\P (X|A^{c})=0.005\\P(A)=0.01

According to the law of total probability the probability of an event <em>A, </em>conditional upon the occurrence of another event <em>B</em> is:

P(A)=P(A|B)P(B)+P(A|B^{c})P(B^{c})

Use this law to compute the probability of person having a positive result as follows:

 P(X)=P(X|A)P(A)+P(X|A^{c})P(A^{c})\\=(1\times0.01)+(0.005\times(1-0.01))\\=0.01+0.00495\\=0.01495

The percentage of positive result is: 0.01495 × 100 = 1.495%.

Thus, the percentage of the population will give a positive test is 1.495%.

4 0
2 years ago
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