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andreev551 [17]

2 years ago

9

Can someone help with surface area. I'll give them brainlyest

1 answer:

inessss [21]2 years ago

7 0

Answer:

To fine the surface area is to add all the area of the faces

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Silk scarves are produced in a factory. Quality control investigations find that 0.5% of the scarves produced have flaws, which

Goshia [24]

The binomial probability is determined by the formula

$\begin{gathered} P_x=\binom{n}{x}p^xq^{n-x} \\ \text{where} \\ P\text{ is the binomial probability} \\ x\text{ is the number of times for a specific outcome within }n\text{ trials} \\ p\text{ is the probability of success on a single trial} \\ q\text{ is the probability of failure on a single trial} \\ n\text{ is the number of trials} \end{gathered}$

Here, we will assume that finding the flaw is the "success" of the trial hence the following given

$\begin{gathered} p=0.05 \\ q=0.95 \\ n=30 \end{gathered}$

Finding the probability of one flawed scarf

$\begin{gathered} P(X=1)=\binom{30}{1}(0.05)^1(0.95)^{30-1} \\ P(X=1)=0.3389 \end{gathered}$

Finding the probability of no flawed scarves

$\begin{gathered} P(X=0)=\binom{30}{0}(0.05)^0(0.95)^{30-0} \\ P(X=0)=0.2146 \end{gathered}$

Finding the probability of more then three flawed scarves

$\begin{gathered} P(X>3)=1-P(X\le3) \\ P(X>3)=1-0.93922843869 \\ P(X>3)=0.0608 \end{gathered}$

3 0

1 year ago

Find the indicated measurement please

podryga [215]

To find the perimeter, just add all those numbers.

4.8+2.3+2.1+3.9=13.1

Hope this helps!

4 0

3 years ago

Read 2 more answers

A database system assigns a 32-character ID to each record, where each character is either a number from 0 to 9 or a letter from

EastWind [94]

Answer:

0.948

Step-by-step explanation:

Given that:

Number of character ID = 32

Numbers = 0 - 9 = 10

Alphabets = A - F = 6

Likelihood of each number or alphabet is equal

Probability that atleast 16 characters in the ID are numbers

Probability of success (p) = required outcome / Total possible outcomes

p = 10/(10 + 6) = 5/8

P(at least 16 numbers), similar to 1 - p(at most 15)

Using the specified calculator :

Binomcdf(number of trials, p, 15) = 0.0520

1 - 0.0520 = 0.948

4 0

3 years ago

PLZ HELP ME I NEED HELP ASAPPPPPP

Alborosie

Answer:

It definitly should be c

Step-by-step explanation:

7 0

2 years ago

What is the equation of a line that has a slope of -2/3 and a x-intercept of -3?

garri49 [273]

For this case we have that, by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cutting point with the y axis

We have, according to the statement data that:

$m = - \frac {2} {3}$

So, the equation is of the form:

$y = - \frac {2} {3} x + b$

We also have that the line intersects the "x" axis at -3, that is, the line passes through the point $(x, y): (- 3,0)$

We substitute to find "b":

$0 = -\frac {2} {3} (- 3) + b\\0 = -2 + b\\b = 2$

Finally, the equation is of the form:

$y = - \frac {2} {3} x + 2$

Answer:

$y = - \frac {2} {3} x + 2$

6 0

2 years ago