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sleet_krkn [62]
3 years ago
6

The measures of the angles of a triangle are 42°, 68°, and 70°. Classify the triangle. right equiangular obtuse acute

Mathematics
1 answer:
cricket20 [7]3 years ago
5 0

Answer:

Scalene acute triangle

Step-by-step explanation:

And acute has less than 90 degrees all of them are less than 90 which makes it acute, scalene

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Write the system in a matrix equation. Then, find the determinant of the matrix containing the coefficients.
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Answer:

See below for the matrix

D = 100

Step-by-step explanation:

\left[\begin{array}{cccc}3&2&1&-8\\-1&-2&4&7\\1&-6&-3&15\end{array}\right]

         3    2    1

D =   -1    -2    4    =   3(-2)(-3) + 2(4)(1) + 1(-1)(-6)  

         1    -6   -3

                                    - 1(-2)(1) - 3(4)(-6) - 2(-1)(-3)

                           =  18 + 8 + 6 + 2 + 72 - 6

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Sorry, I can't type the vertical bars.

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5 0
3 years ago
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OLEGan [10]
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In 2010 Singapore welcome 11600000 overseas visitors.This value has been rounded off to the nearest 100000.What are the largest
spayn [35]

Answer:

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The smallest possible number of overseas visitors would be 11,550,000.

Step-by-step explanation:

The number 11,600,000 was rounded off to the nearest 100,000.

This means that either 0 or 1 was added to the figure with place value of 100,000.

It would be zero (0) in the case where the number after the 100,000th placed value number is lower than 5 and it would be one (1) in the case where the number after the 100,000th placed value is greater than or equal to 5.

Therefore, the largest possible number of overseas visitors would be 11,640,000.

The smallest possible number of overseas visitors would be 11,550,000.

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3 years ago
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Andreas93 [3]
I think the answer is 4.13466144•10^5
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