All categories

3 years ago

Look at the picture!!

Mathematics

2 answers:

Contact [7]3 years ago

7 0

Answer:

Shapes w/ at least one pair of parallel sides: a, d

No parallel sides: b, c

Shapes w/ at least one obtuse angle: a, c

have a good day. <3

Step-by-step explanation:

Keith_Richards [23]3 years ago

4 0

Hey there!

Shape A goes under section 1 & 3.

Shape B goes under section 2.

Shape C goes under section 2 & 3.

Shape D goes under section 1 & 3

I truly hope this helped, as it is very fun to answer questions here for people!

Thank you very much!

Your friend in answering here on Brainly,

~Steve

You might be interested in

What is the length of AB

sweet [91]

Answer:

6 units is the answer im pretty sure

6 0

3 years ago

The quotient of 5 plus d and 12 minus w

aev [14]

That expression is written like so:

(5 + d)/(12 - w)

6 0

4 years ago

The english alphabet contains 21 consonants and five vowels. how many strings of six letters, each of which is drawn from the en

Mamont248 [21]

Number of strings = $21^5(5)$ = 21 x 21 x 21 x 21 x 21 x 5 = 20 420 505

Answer: 20 420 505

6 0

3 years ago

Write the equation of a line PERPENDICULAR to the line y = 3x + 2 that passes through

Dominik [7]

Answer:

Step-by-step explanation:

how 7 because the digris that know be a last number and can be sure the meaning are complecataed thats tight

7 0

3 years ago

Wires manufactured for use in a computer system are specified to have resistances between 0.11 and 0.13 ohms. The actual measure

Marina CMI [18]

Answer:

a) $P(0.11$

And we can find this probability with this difference and with the normal standard table or excel:

$P(-1.11$

b) $P(0.11 < \bar X < 0.13)$

And we can use the z score defined by:

$z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And using the limits we got:

$z = \frac{0.11-0.12}{\frac{0.009}{\sqrt{4}}}= -2.22$

$z = \frac{0.13-0.12}{\frac{0.009}{\sqrt{4}}}= 2.22$

And we want to find this probability:

$P(-2.22< Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Part a

Let X the random variable that represent the resitances of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.12,0.009)$

Where $\mu=0.12$ and $\sigma=0.009$

We are interested on this probability

$P(0.11$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(0.11$

And we can find this probability with this difference and with the normal standard table or excel:

$P(-1.11$

Part b

We select a sample size of n =4. And since the distribution for X is normal then we know that the distribution for the sample mean $\bar X$ is given by: