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Vlad1618 [11]
4 years ago
7

Create a factor tree for 21

Mathematics
2 answers:
bija089 [108]4 years ago
6 0
 21
   ∧
3   7
Are a factor tree for 21
sveticcg [70]4 years ago
5 0

21  /  \ 
<span>     3   7                 lol more or less</span>
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Solve by factoring<br> k2 +6k =16
Black_prince [1.1K]

Answer:

k=2   k=-8

Step-by-step explanation:

8 0
3 years ago
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Change 0.45° to equivalent minutes and seconds. Round to the nearest second if necessary.
konstantin123 [22]

0.45° in minutes is 27.36 minutes and in seconds is 21.6 seconds.

Why is it necessary to divide decimal degrees by 60 to obtain minutes and seconds?

  • In a complete rotation, circles and spheres have 360 degrees. One degree is divided into sixty minutes, and one minute is divided into sixty seconds.
  • You may see that your measurement is 91 full degrees plus 0.456 of a degree if you have 91.456 degrees.

How 0.45° is converted to equal minutes and seconds?

  • To convert 0.456 degrees to minutes, multiply 0.456*60 and you will get the answer as 27.36 minutes. You now have a total of 27 minutes and 0.36 of a minute.
  • To express 0.36 minutes seconds in decimal form, multiply 0.36*60 to get 21.6 seconds. You can round up to twenty two seconds because your decimal 0.6 is bigger than 0.5.

To learn more about minutes and seconds conversion, refer

brainly.com/question/2144524

4 0
2 years ago
A friend is having trouble finding the sum of -84 and 28. A) What is the solution to this problem and B) what explanation would
sergejj [24]

Answer:

A) -56

Step-by-step explanation:

B) First, you have to ignore the plus sign, and recognize that the second negative number means you are subtracting that number.

<u><em>If this is correct, please like the comment so others can know, too!</em></u>

4 0
4 years ago
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Solve for x.<br> y=(x + a)m
Nikolay [14]

Answer:

x = y/m - a

Step-by-step explanation:

divide both side by m

y/m = x + a

subtract a from both sides

y/m - a = x

switch sides.

x = y/m - a

4 0
3 years ago
2x times -y or (2x)(-y)
ratelena [41]

Answer:

(2x)(-y)

Step-by-step explanation:

Both are technically correct, but (2x)(-y) is more professional. You can also say 2x * -y.

Hope this helps!

6 0
3 years ago
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