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2 years ago

Plz, help! NO LINKS!!

1 answer:

8 0

In function we use x and y right?? So... we’re coming to do something here... if more less divide and if less more divide.. so.. you don’t know the certain number so let’s donate it by a variable which is x or any variable.. then..

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Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified exact value in terms of

____ [38]

Answer:

So we have a triangle and a semicircle.

If the triangle is equilateral, this is:

AB = BC = 6cm

Then the area of the triangle is equal to (base*height)/2

in this case:

A = (6*6)/2 = 36/2 = 18cm^2.

And the diameter of the semicircle is equal to 6cm, then the diameter is 3cm

And if the area of a circle is A = pi*r^2

then the area of half a circle is:

A = (pi/2*)3^2 = pi*4.5cm^2

Then, the area of the triangle plus the area of the semicircle is:

Total area = 18cm^2 + pi*4.5^2

3 0

3 years ago

According to the Stack Overflow Developers Survey of 20184, 25.8% of developers are students.The probability that a developer is

murzikaleks [220]

Answer:

0.0326 = 3.26% probability that she is a student.

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: Woman developer

Event B: Student

Probability that the developer is a woman:

7.4% of 25.8%(students).

76.4% of 100 - 25.8 = 74.2%(not students). So

$P(A) = 0.074*0.258 + 0.764*0.742 = 0.58598$

Student and woman developer.

7.4% of 25.8%(students), so

$P(A \cap B) = 0.074*0.258 = 0.019092$

If we encounter a woman developer, what is the probability that she is a student

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.019092}{0.58598} = 0.0326$

0.0326 = 3.26% probability that she is a student.

5 0

2 years ago

find the slope of the line that has the following intercepts: y-intercept: -15; x-intercept: 3. round your answer to 1 decimal p

Readme [11.4K]

Y intercept : (0,-15)
X intercept : (3,0)

Slope : (0 - (-15)) / (3-0) = 15 / 3 = 5

3 0

3 years ago

Can someone please help me with 9 and 10!!! Thank you so much!!!

Dmitrij [34]

9 Is −4x3 and 10 is −5a2

5 0

2 years ago

students set up 6 rows of seats for a music concert. they put 6 seats in each row. what is the total number of seats? solve this

Mariulka [41]

Answer:

Step-by-step explanation:

becuase each row has 6 in them and there are 6 rows so 36 is the final answer

8 0

2 years ago

Read 2 more answers