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r-ruslan [8.4K]
3 years ago
10

Need help for geo..will mark brainlist

Mathematics
1 answer:
gladu [14]3 years ago
7 0
<h3>1st pair of triangles :</h3>

Postulate/theorem = <u>SAS postulate</u>

<h3>Explanation :</h3>

Given :

  • One side in both triangles are congruent.
  • Another side in both triangles is also congruent.
  • The angles between these two sides are also equal.

Since 2 sides and an included angle is equal in these two triangle, they are said to be congruent under the SAS congruence postulate.

<h3>2nd pair of triangles :</h3>

Postulate/theorem = <u>ASA postulate</u>

<h3>Explanation :</h3>

Given :

In triangle KDS and triangle KWS :

  • Angle K = Angle K
  • Angle S = Angle S
  • Side KS = Side KS

Since 2 angles and an included side is equal in these two triangles, they are said to be congruent under the ASA congruence postulate.

<h3>3rd pair of triangles :</h3>

Postulate/theorem = <u>AAS theorem</u>

<h3>Explanation :</h3>

Given :

In triangle ACB and triangle BED :

  1. Angle A = Angle B
  2. Angle B = Angle D
  3. Side CB = Side ED

Since two angles and one side is equal in these two triangles, they are said to be congruent under the AAS theorem.

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x^{2} -2x-3=(x+1)(x-3)
Now we can rewrite our rational function as follows:
f(x)= \frac{x-3}{(x+1)(x-3)}
Notice that we have a common factor (x-3) in both numerator and denominator; therefore we can cancel them:
f(x)= \frac{1}{x+1}

Taking all the above into consideration we realize that x=3 is a removable discontinuity; the correct answer is the first one: there is a hole in x=3 and asymptote  at x=-1.

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3 years ago
What is the volume of a cube with an edge length<br> of 2/3 foot?
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Answer:

512 inches cubed

Step-by-step explanation:

2/3 of a foot= 8in

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512 inches cubed

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PLEASE HELP! What is the difference between categorical and quantitative data? Give examples of each of your own for each. What
lorasvet [3.4K]

Step-by-step explanation:

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the best way to represent data by frequency table,pie chart and bar chart.

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X^2+10x-7 / x^2+10x+25=0 <br> how do i solve for x?
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Read 2 more answers
Consider the following hypothesis test.H0:μ1−μ2=0 Ha:μ1−μ2≠0The following results are for two independent samples taken from the
Julli [10]

Answer:

a) z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53  

b) p_v =2*P(z

c) Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

Step-by-step explanation:

Information given

\bar X_{1}= 104 represent the mean for 1

\bar X_{2}= 106 represent the mean for 2

\sigma_{1}= 8.4 represent the population standard deviation for 1

\sigma_{2}= 7.6 represent the population standard deviation for 2

n_{1}=80 sample size for the group 1

n_{2}=70 sample size for the group 2

z would represent the statistic

Hypothesis to test

We want to check if the two means for this case are equal or not, the system of hypothesis would be:

H0:\mu_{1}=\mu_{2}

H1:\mu_{1} \neq \mu_{2}

The statistic would be given by:

z =\frac{\bar X_1-\bar X_2}{\sqrt{\frac{\sigma^2_1^2}{n_1} +\frac{\sigma^2_2^2}{n_2}}}=(1)

Part a

Replacing we got:

z =\frac{104-106}{\sqrt{\frac{8.4^2}{80} +\frac{7.6^2}{70}}}= -1.53

Part b

The p value would be given by this probability:

p_v =2*P(z

Part c

Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance

6 0
3 years ago
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