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3 years ago

Someone please help me on this question!!!!!

Mathematics

1 answer:

dem82 [27]3 years ago

6 0

now in a kite, the ∡x and the angle on the opposite side are twins.

the sum of all interior angles in a polygon are 180(n - 2), n = number of sides.

so a kite is a quadrilateral, 4 sides, so its interior angles add up to 180( 4 - 2) = 360°.

we know one side is 26°, and the opposite side is 90°, so the slack is 360 - 26 - 90 = 244°.

so the twins will take half each of that, namely each one takes 244/2 = 122° = ∡x.

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A squared plus b squared equals c squared calculator

Vlada [557]

Answer:

umm?

Step-by-step explanation:

You just uhh explained the pythagorean theorem formula

$a^{2} + b^{2} = c^{2}$

but what's the question?

4 0

3 years ago

Psychologist is measuring learning in mice. He assumes that a mouse learns to recognize a specific object after a random number

Sphinxa [80]

Answer:

Option B) 0.2143

Step-by-step explanation:

We are given the following in the question:

Numbers of exposures(x): 4,3,7

We have to find the maximum likelihood estimate of p.

Formula:

$\hat{p} = \dfrac{n}{\sum x_i}$

Putting the values, we get,

$\hat{p} = \dfrac{3}{3+4+7} = \dfrac{3}{14} = 0.2143$

Thus, the correct answer is

Option B) 0.2143

6 0

4 years ago

Could any one explain this problem?

maxonik [38]

Answer:

Step-by-step explanation:

Δ AQP and Δ ACB are similar triangles, thus the ratios of corresponding sides are equal, that is

$\frac{AQ}{AC}$ = $\frac{PQ}{BC}$ ( note that AC = 3 + 6 = 9 ), substitute values

$\frac{3}{9}$ = $\frac{4.5}{BC}$ ( cross- multiply )

3BC = 40.5 ( divide both sides by 3 )

BC = 13,5 cm → C

8 0

3 years ago

Give an example of either Inductive or Deductive reasoning. Try to use a "real world" example of something you might have encoun

kipiarov [429]

Answer:

See answer below

Step-by-step explanation:

In inductive reasoning we arrive to a general conclusion based on particular observations.

For example:

"My friends Peter and Mary study at XYZ University. Peter and Mary are brilliant.

Yesterday I met Joe in a party. Joe also studies at XYZ University and he happens to be brilliant, too.

I conclude that all the students of XYZ University are brilliant"

Notice that this kind of reasoning might lead to a false conclusion.

In deductive reasoning, we arrive to a particular conclusion based on general observations. So, deductive reasoning is the opposite of inductive reasoning.

An example of deductive reasoning could be the following:

"To be accepted in the XYZ University you must pass a test with a score greater than 70%.

My friend Peter studies at XYZ University, so he passed the test with a score greater than 70%"

In deductive reasoning you may arrive to a false conclusion if your general assumption is false.

8 0

4 years ago

Consider a population with 3 observations: 6, 10 and 12. You use simple random sampling without replacement to select a sample o

lozanna [386]

Answer:

$\dfrac{2}{3}$

Step-by-step explanation:

Given that:

The number of observations is:

6, 10, 12

If we are to use a simple random sampling without replacement, then we will have:

(6,10) (6,12) (10,12)

Here;

the sample size n = 2

The population size N = 3

For (6,10) ; The sample mean = $\dfrac{6+10}{2}$

= $\dfrac{16}{2}$

= 8

For (6,12) ; The sample mean = $\dfrac{6+12}{2}$

= $\dfrac{18}{2}$

= 9

For (10, 12) ; The sample mean = $\dfrac{10+12}{2}$

= $\dfrac{22}{2}$

= 11

The probability distribution of sample mean(x) is:

X 8 9 11

P(X=x) $\dfrac{1}{3}$ $\dfrac{1}{3}$ $\dfrac{1}{3}$

Thus, the probability that the sample mean is larger than 8 is:

P(X> 8) = P(X = 9) + P(X + 11)

P(X> 8) = $\dfrac{1}{3}+\dfrac{1}{3}$

P(X > 8) = $\dfrac{1+1}{3}$

P(X> 8) = $\dfrac{2}{3}$

5 0

3 years ago