Ana is solving the problem -15 + 42 using colored tiles. She is using red tiles to represent negative numbers, and yellow tiles to represent positive numbers. After representing the expression, she removes all zero pairs from her mat. How many tiles will be on her mat at the end of the problem? What color will they be? A.
15 red tiles

B.
27 red tiles

C.
27 yellow tiles

D.
57 yellow tiles

Sometimes life is like a tunnel. you can’t always see the light at the end of the tunnel, but if you keep moving, you will come to a better place

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )