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3 years ago

Free brainliest! to first answer!

Mathematics

2 answers:

Dmitry [639]3 years ago

7 0

Answer:

thank youuu :))) <<<<<<<<<<<

Vanyuwa [196]3 years ago

5 0

Answer:

i came back for points...

Step-by-step explanation:

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What is the equation, in point-slope form, for a line that goes through (2, −6)(2, −6) and has a slope of −34−34 ?

Keith_Richards [23]

The answer is the last one option: y+6=-34(x+2). I told you the reason in the other similar question.

8 0

4 years ago

Assume a test for a disease has a probability 0.05 of incorrectly identifying an individual as infected (False Positive), and a

Nana76 [90]

Answer:

0.00002 = 0.002% probability of actually having the disease

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Positive test

Event B: Having the disease

Probability of having a positive test:

0.05 of 1 - 0.000001(false positive)

0.99 of 0.000001 positive. So

$P(A) = 0.05*(1 - 0.000001) + 0.99*0.000001 = 0.05000094$

Probability of a positive test and having the disease:

0.99 of 0.000001. So

$P(A \cap B) = 0.99*0.000001 = 9.9 \times 10^{-7}$

What is the probability of actually having the disease

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{9.9 \times 10^{-7}}{0.05000094} = 0.00002$

0.00002 = 0.002% probability of actually having the disease

6 0

3 years ago

The product of two numbers is 10 times the value of 9 and 8. Which expression shows the two numbers?

slavikrds [6]

9*10 =90 8*10=80

90*80=x maybe.

7 0

4 years ago

Read 2 more answers

Kim just turned 10 years old her mother is four times older than Kim how old is Kims mother

AveGali [126]

Answer:

40 years old

Step-by-step explanation:

6 0

3 years ago

Find the value of x.

Nuetrik [128]

Answer:

$\huge\boxed{y=\sqrt{55}}$

Step-by-step explanation:

ΔADC and ΔDBC are similar (AAA)

Therefore the cooresponging sides are in proportion:

$\dfrac{AC}{CD}=\dfrac{CD}{BC}$

Substitute:

$AC=6+5=11\\BC=5\\CD=y$

$\dfrac{11}{y}=\dfrac{y}{5}$ <em>cross multiply</em>

$(11)(5)=(y)(y)\\\\55=y^2\to y=\sqrt{55}$

3 0

4 years ago