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Sindrei [870]
3 years ago
9

Which expression is equivalent to 16.8−18.6

Mathematics
2 answers:
Nata [24]3 years ago
6 0

Answer:

D i did the test and got it right

olganol [36]3 years ago
5 0

Answer:

D.16.8+(-18.6)

Step-by-step explanation:

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. Choose the correct means and standard deviations for the Sincere and Insincere conditions. Make sure to round to two decimal p
tensa zangetsu [6.8K]

Answer:

C. The rudely disagrees condition has a mean of 4.16 and a standard deviation of 0.85 while the politely disagrees condition has a mean of 3.82 and standard deviation of 0.97

Step-by-step explanation:

The given data is  

                                          x`             Std. Dev      

R. disagrees                  4.16       0.854        

P. disagrees                 3.82       0.967        

From this data we see that the R. disagrees has a mean of 4.16 and standard deviation of 0.854

while

the P. disagrees has a mean of 3.82 and standard deviation of 0.967.

Same figures are given only in option C because

Rounding 0.854 gives 0.85

Rounding 0.967 gives 0.97

So only option C is the best choice.

C. The R. Disagrees condition has a mean of 4.16 and a standard deviation of 0.85 while the P. Disagrees condition has a mean of 3.82 and standard deviation of 0.97

8 0
3 years ago
In the accompanying diagram of ABC ca is extended to D, m∠ABC = 70 and m∠BCA =50 Find m∠DAB
zvonat [6]

Answer:

<em>120 degrees</em>

Step-by-step explanation:

Find the diagram attached.

From the diagram;

Interior angles are m∠BCA and m∠ABC

Exterior angle is m∠DAB

The sum of interior angle of the triangle is equal to exterior

m∠BCA +m∠ABC =m∠DAB

Given

m∠ABC = 70

m∠BCA =50

m∠DAB = 70 + 50

m∠DAB = 120 degrees

<em>Hence the measure of m∠DAB is 120 degrees</em>

6 0
3 years ago
Evaluate the algebraic expression -2.3a + 4.6 for the given value 6<br><br> help!??!?!?
Illusion [34]

Answer:

someone please answer

Step-by-step explanation:

I need this too

7 0
3 years ago
Help please first person to answer it right gets Brainliest
mihalych1998 [28]

Answer:

its the first one

Step-by-step explanation:

3 0
3 years ago
Audra was drawing a perpendicular bisector of segment ab with a compass . She started with a line segment AB . Then she placed h
aalyn [17]

Given that Audra was drawing a perpendicular bisector of segment AB with a compass. She started with line segment AB. Then, she placed her compass point on A and opened the compass more halfway to B.


Her next step will be "Using the width of the compass from the previous step, draw two arcs to the left and right of both A and B".



8 0
3 years ago
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