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3 years ago

Please help

Mathematics

1 answer:

lianna [129]3 years ago

6 0

Answer:

there is no consistent relationship and has no real correlation

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Need help plz!!!?!?!?!?

Kipish [7]

Answer:

54yd

Step-by-step explanation:

Area for the rectangle=8×6

=48yrd

area for the triangle=1/2×4×3

=6yd

Total area=48+6=54yd

3 0

3 years ago

sandy is upgrading her internet service fast charges $60 for installation and $50.45 per month quick internet has free installat

seraphim [82]

Answer:
60+50.45x=57.95x

Cost of Fast Internet:
$60 for installation and $50.45 per month for months =

Cost of Quick Internet:
Free installation and $57.95 per month for months =

We want to know in how many months BOTH COSTS WOULD BE SAME. So we EQUATE the expressions for both. We have:

This equation can be solved for x to find the number of months for which the internet service would cost the same.

Read more on Brainly.com - brainly.com/question/893458#readmore

4 0

3 years ago

Cystic fibrosis (CF) is a hereditary lung disorder that often results in death. It can be inherited only if both parents are car

OLEGan [10]

Answer:

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

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: Tested negative

Event B: Does not carry an abdornal CF gene.

Probability of a negative test:

10% of 1/25 = 0.04 = 4%

100% of 100 - 4 = 96%. So

$P(A) = 0.1*0.04 + 1*0.96 = 0.964$

Negative test and not carrying an abdornal gene:

100% of 96%. So

$P(A \cap B) = 1*0.96 = 0.96$

Compute the probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.96}{0.964} = 0.9959$

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

8 0

3 years ago

Helpp please 10 points ok

icang [17]

The correct answer is :

$\frac{13}{50}$

3 0

3 years ago

Read 2 more answers

For the linear function f(x) = -2x+1 , find the following

Leya [2.2K]

Given:

The function is:

$f(x)=-2x+1$

To find:

a. Slope and Y-intercept.

b. Is the function increasing, decreasing, or constant, justify your answer.

c. Graph the function, label x, and y-intercepts.

Solution:

a. We have,

$f(x)=-2x+1$ ...(i)

The slope intercept form of a line is:

$y=mx+b$ ...(ii)

Where, m is the slope and b is the y-intercept.

On comparing (i) and (ii), we get

$m=-2,b=1$

Therefore, the slope of the line is -2 and the y-intercept is 1.

b. If the slope of a linear function is negative, then the function is decreasing.

If the slope of a linear function is positive, then the function is increasing.

If the slope of a linear function is 0, then the function is constant.

The slope of the linear function is negative.

Therefore, the function is decreasing.

c. We have,

$f(x)=-2x+1$

At $x=0$ , we get

$f(0)=-2(0)+1$

$f(0)=1$

So, the y-intercept is at (0,1).

At $f(x)=0$ , we get

$0=-2x+1$

$2x=1$

$x=\dfrac{1}{2}$

$x=0.5$

So, the x-intercept is at $\left(0.5,0\right)$ .

Plot the points $(0,1), \left(0.5,0\right)$ and connect them by a straight line as shown below:

4 0

3 years ago