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inn [45]
3 years ago
11

In triangle ABC a=39 m,b=27 m and c = 42 m. Find the area

Mathematics
2 answers:
Alexxandr [17]3 years ago
8 0
The answer would be D
Agata [3.3K]3 years ago
5 0

Answer:

MY BRAIN CANT PROCESS THIS!!!!

Step-by-step explanation:

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HELPPP!!!! Both questions are incredibly confusing to me !!!!!
Darya [45]

Answer:

Step-by-step explanation:

I'm going to start with problem 3. You need to become familar with the kind of tricks teachers play on you.

Problem 3 depends on getting RS = RW.

RT = RT                                    Reflexive property

<STR = <WTR                           A straight line having 1 rt angle  actually has 2

ST = TU                                    They are marked as equal

Triangle STR=Triangle WTR    SAS

RS = RW                                    Corresponding parts of = triangles are =

8x = 6x + 5                                Subtract 6x from both sides

8x -6x = 6x - 6x + 5                   Combine

2x = 5                                         Divide by 2

2x/2 = 5/2

x = 2.5

RU = 6*2.5 + 5

RU = 15 + 5

RU = 20

Now we can play with Question 4.

This question depends on the method used in three, although not entirely.

What you need to know is that W is on RT when you take a ruler and make RT longer. You can put W anywhere as long as it is on RT when it is made longer.

Directions

Make RT longer. Draw down and to your right.

Put a point anywhere on the length starting at T. Label this new point as W. There's your W. It goes anywhere on the part of RT made longer.

Draw UW.

Label UW as 8

Now draw another line from S to W. Guess what? By the methods used in question 3, it's also 8. So SW = 8

TW = TW                        Reflexive

<UTW = STW                 Same reason as in 3. UtW is a right angle

UT = ST                          Given (the marking tells you so.

ΔUTW = ΔSTW              SAS

UW = SW                       Corresponding parts of = triangles are =

SW  = 8

7 0
2 years ago
1. How many variables are involved in the chi-square test?
GarryVolchara [31]

The result of the respective questions are:

  • This chi-square test only takes into consideration one variable.
  • The  type of chi-square test this is is a Goodness of Fit
  • df= 3
  • NO

<h3>How many variables are involved in the chi-square test?</h3>

a)

This chi-square test only takes into consideration one variable.

b)

The  type of chi-square test this is, is a Goodness of Fit

To test the hypothesis, we must determine whether the actual data conform to the assumed distribution.

The "Goodness-of-Fit" test is a statistical hypothesis test that determines how well the data that was seen resembles the data that was predicted.

c)

Parameter

n = 4

Therefore

Degrees of freedom

df= n - 1

df= 4 - 1

df= 3

d)

In conclusion

Parameters

\alpha = 0.05

df = 3

Hence

Critical value = 7.814728

Test statistic = 6.6

Test statistic < Critical value, .

NO, the result of this test is not statistically significant.

Read more about Probability

brainly.com/question/11234923

#SPJ1

3 0
1 year ago
Everything please helppppp!!
Soloha48 [4]

Answer:

Ok im, not 100% sure but the answer is for 1-10, 2-20, 3-40,  4-40

7 0
2 years ago
Read 2 more answers
X+40+4x-5=6x+20 can I get some help with this problem please and thanks.
laila [671]

Answer:

the answer is c=−1/20x+7/4

Step-by-step explanation:

6 0
3 years ago
Please help! Describe how the variables in the given equation are related.<img src="https://tex.z-dn.net/?f=p%3D%5Cfrac%7Bkqrt%7
Sladkaya [172]

9514 1404 393

Answer:

  p is proportional to q, r, t, and inversely proportional to s

Step-by-step explanation:

Assuming k is a "constant of proportionality," the value of p is directly proportional to each of the numerator variables: q, r, t. P is inversely proportional to the denominator variable, s.

4 0
2 years ago
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