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brilliants [131]
3 years ago
7

Can somebody help me

Mathematics
2 answers:
Effectus [21]3 years ago
8 0

Answer:

30°

Step-by-step explanation:

because this needs 180 angle so 150 (20+130)

180-150 equals 30

sammy [17]3 years ago
5 0

Answer:

30°

a full triangle is 180° so to find the missing angle you must add the two given angles (20°+130°) then take the answer away from 180° (180°-150°)

hence your answer is 30°

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vagabundo [1.1K]

Answer:

He subtracted incorrectly

Step-by-step explanation:

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7 0
3 years ago
3c + 5d = 7d – 6c, solve for d
liubo4ka [24]

Answer:

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Step-by-step explanation:

3 0
3 years ago
34. Find the surface area for the following rectangular prism ​
Taya2010 [7]

\huge\fbox\green{ANSWER}

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4 0
2 years ago
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Alecsey [184]
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7 0
3 years ago
In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ?x - 49
shutvik [7]
We are asked to find unknown or the missing number to complete the polynomial given in the problem which is x² + ?x -49. First, let us equate the number to be equal to zero such as it would become x² + ?x - 49 = 0. Next, we need to find the factors such that it would produce a difference of squares and these two factors are a = +7 and b = -7. Hence, the complete solution is shown below:
(x + 7) (x-7) = 0
perform distribution and multiplication of terms such as shown below:
x² + 7x - 7x - 49 = 0
Combine the same term such as we can either add or subtract +7x to -7x and the result will be equal to 0x.
 x² + 0x - 49 = 0

Therefore, the missing number is 0. The answer is 0 which will result to x² +0x - 49.
4 0
3 years ago
Read 2 more answers
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