What is the quality a design has if it maintains all characteristics when it is rotated about a point lying in its plane?

Answers

Answer 1

Answer:

Answer:

The answer is rotational symmetry.

Step-by-step explanation:

The Rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about a point lying in its plane. A shape is said to possess rotational symmetry when it still looks the same after we rotate it.

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If r and s can be any integers such that s > 10 and 2r + s = 15, which of the following is the solution set for r ?
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What would be the answer if I substituted the x for zero?
plz help!!

Answers

The answer would be -5

The answer would be negative five. Anything multiplied by zero is zero so that cancels the 2x^3, leaving you 0-5. Which is -5.

If Timmy has 20 apples and John has 15. How many do they have in total?

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Answer: 35

Step-by-step explanation: Simple math.

I need help on this question.

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95.

As you see, the angle is a bit closer to 120. A right angle would be a perfect square, which is 90 degrees. So since it is so closer to 90 than the other answers, the answer is 95.

If < 4 is 120°, then we know <3 = 60°, because 120+60=180°
then <2 = 35° , and if we add all the angles of the triangle together we find <1
60°+35°= 95°
180°-95°= 85° = <1
180°-85°= <5 = 95°

Which number can each term of the equation be multiplied by to eliminate the fractions before solving? -3/4m-1/2=2+1/5mHELP ME

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-3/4m - 1/2 = 2 + 1/5m...to eliminate the fractions, u must multiply the equation by the common denominator....which in this case is 20.
Resulting in : -15m - 10 = 40 + 4m

Look at the linear equation below.2x - 3y = -13

Which pair of numbers is a solution to the equation?
Select one:
(-5, 1)
(5, 1)
(5, -1)
(-5, -1)

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The answer is (-5,1) because 2(-5)-3(1)=-13 :)

if a and b are the measures of two first quadrant angles and sin a = 4/5 and sin b = 5/13, find sin a+b.

Answers

given that sin a= 4/5
cos a= √(1-sin²a)
   = √(1-16/25)
   = √(9/25)
   = 3/5
sin b=5/13
cos b= √(1-sin²b)
   = √(1-25/169)
   = √(144/169)
   = 12/13

sin(a+b)= sin a· cos b + cos a · sin b
      = 4/5· 12/13 + 3/5· 5/13
      = 48/65+15/65
   = 63/65
hope it helps

Answer:

[A] sin(a + b) = $(63)/(65)$

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