The steps that Malcolm performed to simplify the expression StartFraction 3.4 times (3.6 minus 2.8) over 2 EndFraction are shown. Step 1: StartFraction 3.4 times 0.8 over 2 EndFraction, determined by hand
Step 2: 1.7 × 0.4, determined by hand
Step 3: 0.68, determined using a calculator

Which statement is true?

Malcolm simplified the expression correctly.
Malcolm made his first error in Step 1.
Malcolm made his first error in Step 2.
Malcolm made his first error in Step 3.

Ya i could just need to know what type of math

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 )