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Serggg [28]
3 years ago
10

Attachment Below Thanks

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

Answer:

Desmond's spinner.

MariettaO [177]3 years ago
5 0

Answer:

Desmond's spinner

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HELP FAST<br><br> find the value of x.
sergeinik [125]

Answer:

81=6x+3(vertically opposite angle are equal)

81-3=6x

78=6x

x=13°

hope it helps.

6 0
2 years ago
What happens to energy during a change of state? Why is it a physical change?​
Flura [38]

Answer & Explanation:

Energy is heat. For example, if you boil a cup of water it has more energy than   a cup at room temperature. It is considered a physical change because its properties do not change only the state of matter. On the other hand, if wood burns then that is a chemical change because it changes its chemical properties. Please rank as Brainliest if this helps! Thank you!

5 0
3 years ago
Find the angle θ between u = &lt;7, –2&gt; and v = &lt;–1, 2&gt;.
Dmitry_Shevchenko [17]

The angle between two vectors is:

CosФ = u - v / Magnitude(u) x magnitude(v)

Magnitude of u = SQRT(7^2 + -2^2) = SQRT(49 +4) = SQRT(53)

Magnitude of v = SQRT(-1^2 +2^2) = SQRT(1 +4) = SQRT(5)

u x v = (7 x -1) + (-2 x 2) = -7 + -4 = -11

cosФ = -11 / sqrt(53) x sqrt(5)

cosФ = -11sqrt265) / 265

Ф =cos^-1(-11sqrt265) / 265)

Ф=132.51 degrees.

7 0
3 years ago
Read 2 more answers
1) What is 5/7 x 3/5? A)2/3 B)2/9 C)3/7 D)5/4
Yuliya22 [10]

Answer: 3/7

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A home store donated a percent of everybody sale to charity. The total sales were $6,550 so the store donated $393. What percent
Andrej [43]

Answer:

6%

Step-by-step explanation:

393/6550=0.06

0.06=6%

5 0
3 years ago
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