All categories

2 years ago

What is the expected value for the binomial distribution below? Successes

Mathematics

1 answer:

jarptica [38.1K]2 years ago

6 0

I don’t know what the biominal is

You might be interested in

What is the value of sin(-240)?

GarryVolchara [31]

Sin(-240) is in Q2 and its reference angle is 60°
Answer: $\frac{ \sqrt{3} }{2}$

8 0

3 years ago

The position of an object moving along a straight line for

NikAS [45]

Answer:

at 2/3 seconds

Step-by-step explanation:

S1(t) = t³ + 2

Average speed, dS1/dt = 3t²

S2(t) = t²

Average speed, dS2/dt = 2t

The distance between the objects is

dS1/dt - dS2/dt

= 3t² - 2t

The time the distance between the two object is at minimum is when the distance is 0

That is, when

3t² - 2t = 0

t(3t - 2) = 0

t = 0 or 3t - 2 = 0

t = 0 or t = 2/3

3 0

4 years ago

A gem is cut in a kite shape. It is 6.2 millimeters wide at its widest point & 5 millimeters long. What is the area?

arlik [135]

Answer: $15.5\ mm^2$

Step-by-step explanation:

You can calculate the area of a kite with the following formula:

$A=\frac{d_1d_2 }{2}$

Where $d_1$ is the length of a diagonal and $d_2$ is the length of the other diagonal.

In this case, you can identify that:

$d_1=6.2\ mm\\d_2=5\ mm$

Therefore, the final step is to substitute the values into the formula.

Then, the area is:

$A=\frac{(6.2\ mm)(5\ mm)}{2}\\\\A=15.5\ mm^2$

5 0

3 years ago

Pythagorean theorem level 2 delta math

julsineya [31]

The third side is 4

So Pythagorean's theorem is the following

$Short^2 + Long^2 = Hypotenuse^2$

From here we can input the following information that we know

$Short^2 + \sqrt{33}^2 = 7^2\\Short^2 + 33 = 49\\Short^2 = 49 - 33\\Short^2 = 16\\Short = \sqrt{16}\\Short = 4$

7 0

3 years ago

A third-grade class is told to send a valentine to every single one of their classmates. On Valentine’s Day, the class ends up w

FinnZ [79.3K]

306 is the total cards sent by all the students in the class. Lets say x is the number of students in class, therefore each student needs to send x-1 cards (since they do not send themselves a card). So depending on your level of math, you could either take the complex way to solve it using quadratic equations, or just find the number that if multiplied by itself then subtracted, gives you 306.
$(x \times x) - x = 306 \\ lets \: try \: 18 \\ (18 \times 18) - 18 = 306 \\ so \: x = 18$
===============
Complex way
$(x \times x) - x = 306 \\ {x}^{2} - x - 306 = 0$
So a = 1, b = -1, c=-306
using the quadratic equation:
$x = \frac{ - b + \sqrt{ {b}^{2} - 4ac } }{2a}$
$x = \frac{1 + \sqrt{1 - (4 \times 1 \times - 306)} }{2} \\ x = \frac{1 + \sqrt{1 - ( - 1224)} }{2} \\ x = \frac{1 + \sqrt{1225} }{2} \\ x = \frac{1 + 35}{2} \\ x = \frac{36}{2} \\ x = 18$

8 0

3 years ago

Read 2 more answers