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Ivan
2 years ago
12

Please help me brainliest

Mathematics
2 answers:
liq [111]2 years ago
8 0

Answer:

1, 2, 3, 4

Step-by-step explanation:

  1. 4 1/3·1 = 4 1/3 Good
  2. 7 1/3·2 2/5 = 22/3·12/5 = 110/15·36/15= 3960/225 = 17 3/5 Good
  3. 6 2/3·1/2 = (6 2/3)/2 = 3 1/3 Good
  4. 4 1/2·2 1/6 = 9/2·13/6 = 27/6·13/6 = 9 3/4 Good
  5. 5·3 1/4 = 20/4·13/4 = 16 1/4 Doesn't Work

Feliz [49]2 years ago
6 0
1,2,3,4 so easy !!




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Which of the following is the number of sides for a regular polygon that will not form a regular tessellation?
trasher [3.6K]

Answer with explanation:

A regular polygon is simple closed geometrical shape, only made up of line segments.

And Regular Tessellation, is geometrical shape, made up of regular polygons having, 3 ,or 4 or 6 sides.

It is combination of, only single kind of polygon,either, polygon having 3 sides, or ,4 sides or 6 sides.

→Regular polygon having 3 sides is Called Equilateral Triangle.

→Regular polygon having 4 sides is Called Square.

→Regular polygon having 6 sides is Called Regular Hexagon.

⇒Regular polygon having , 8 sides will not form a regular tessellation.

Option D

6 0
3 years ago
Combine like terms 7a - a+ 16 = ?
dexar [7]
6a+16

Explanation:
If there's just a variable, there's an understood 1 in front of it. So what that really says is:

7a-1a+16

So, you combine the a's. 7a minus 1a is 6a. Same as 7-1,but you have a variable stuck on the end of it.

6a+16

:^)
4 0
3 years ago
Read 2 more answers
Which expression is equivalent to 3.5x+1.5x+2-1/2
MrRissso [65]
The most simplified version would be:
5x+1.5
4 0
3 years ago
Given a triangle with: a =<br> 150, A = 75°, and C = 30°<br> Using the law of sines gives: c = 0
koban [17]

Answer:

c = 77.6

Step-by-step explanation:

You may have entered the measure of a side as the measure of an angle.

\dfrac{\sin A}{a} = \dfrac{\sin C}{c}

\dfrac{\sin 75^\circ}{150} = \dfrac{\sin 30^\circ}{c}

c\sin 75^\circ = 150 \sin 30^\circ

c = \dfrac{150 \sin 30^\circ}{\sin 75^\circ}

c = 77.6

You are correct. Good job!

5 0
3 years ago
Can you help my brother so I can help him! How can you subtract 5 2/12 - 1 9/12
Lana71 [14]

Answer: \frac{41}{12}, or as a mixed number, 3 \frac{5}{12}

Step-by-step explanation:

It helps to simplify them.

6 0
3 years ago
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