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taurus [48]
3 years ago
12

What is the value of x ​

Mathematics
1 answer:
attashe74 [19]3 years ago
5 0

Answer:

the answer is 82° because if u added 45+53+82 it would come out to be 180° which is the overall degrees of a triangle.

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7b squared -21b-273=7
guajiro [1.7K]

Answer:

Given 7b²-21b-273=7, the solutions are x1 = 8 and x2 = -5.

Step-by-step explanation:

Given 7b²-21b-273=7, first you need to equal zero. So

7b²-21b-273-7=0 ⇒ 7b²-21b-280 = 0

The secon step is to find the solutions applying Bhaskara´s formula x = (-b ± √(b²-4×a×c))/2×a

Where a=7, b= -21 and c= -280

After you identified each term, you have to replace it on the formula so....

x = (21 ± √(21² - 4×7×(-280)))/2×7 ⇒ x = (21 ± √(441 + 7840))/14                   ⇒ x = (21 ± √8281)/14

Then you will obtain two values for x, called x1 = 8 and x2=-5.

8 0
4 years ago
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81 to the power of 3/2
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Answer: 265720.5
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(81^3) / 2 = 265720.5
4 0
3 years ago
3. Identify the pairs of supplementary angles in the figure.
horsena [70]
A is the correct answer because it is the only one that shows the angles that add up to 180 degrees on a line since a supplementary angle is on the line and will add up to 180. D would be correct if angles 6,4,and7 were placed together as those angles together wake a line but no, this means A is the correct answer
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Use upper and lower sums to approximate the area of the region using the given number of subintervals (of equal width). (Round y
tia_tia [17]

Answer:

Great question

Step-by-step explanation:

3 0
3 years ago
El perímetro de un triángulo es...
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A)...la suma de sus lados
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