All categories

3 years ago

Help please!!!!!!!!!!!

Mathematics

1 answer:

kvasek [131]3 years ago

3 0

Answer:

B. 2/3

Step-by-step explanation:

To solve this we have to take into account this axioms:

- The total probability is always equal to 1.

- The probability of a randomly selected point being inside the circle is equal to one minus the probability of being outside the circle.

Then, if the probabilities are proportional to the area, we have 1/3 probability of selecting a point inside a circle and (1-1/3)=2/3 probability of selecting a point that is outside the circle.

Then, the probabilty that a random selected point inside the square (the total probability space) and outside the circle is 2/3.

You might be interested in

Carlos is using the quadratic formula to find the solutions of y=3x^2-5x-2. Which of the following will simplify to the correct

Nana76 [90]

Answer:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

Step-by-step explanation:

A quadratic equation in one variable given by the general expression:

$ax^2+bx+c$

Where:

$a\neq 0$

The roots of this equation can be found using the quadratic formula, which is given by:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

So:

$y(x)=3x^2-5x-2=0$

As you can see, in this case:

$a=3\\b=-5\\c=-2$

Using the quadratic formula:

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}=\frac{-(-5)\pm\sqrt{(-5)^2-4(3)(-2)} }{2(3)}=\frac{5\pm\sqrt{25+24} }{6}$

Therefore, the answer is:

$Fx=\frac{5\pm\sqrt{25+24} }{6}$

4 0

2 years ago

Attached geometry question. Please help. 100 points, will mark branliest.

-BARSIC- [3]

$\large{\rm{\underline{\underline{Answer:}}}}$

Since ∆AFB is similar to ∆ABC.

< F = < B (corresponding angle)
< G = < C (corresponding angle)
< A = common.

In ∆ABC,

⇛< A + < B + < C = 180°

⇛37° + 65° + < C = 180°

⇛102° + < C = 180°

⇛< C = 78°

We know that, < AGF / < G = < C

So, Measure of angle < AGF = 78° (ans)

6 0

2 years ago

Find the number of turns or bumps in the graph of the function f(x) = x² - 25

Papessa [141]

Answer:

1 turn

Step-by-step explanation:

this is what the graph would look like:

4 0

1 year ago

To $28.35 find the. total cost if the tax is 6.25% and a 20% tip

Alik [6]

Your answer:
20% of 28.35 is 5.67. 6.25% of 28.35 is 1.77. Add 28.35, 5.60, and 1.77 to get the final total of $35.79

4 0

2 years ago

Read 2 more answers

What does it mean to be a medium of exchange?

evablogger [386]

D. Any item that maintains its worth over time. Plz mark Brainliest

6 0

2 years ago