a. If the beginning temperature was -13°F at 5:00 a. m., what was the temperature at 9:00 a. m.? Change in Temperature 5:00 a. m.- 6:00 a. m. -3°F 6:00 a. m. - 7:00 a. m. -2°F 7:00 a. m. - 8:00 a. m. -6°F 8:00 a. m.-9:00 a. m. 7°F b. The same cold front hit Hartford, Connecticut the next morning. The temperature dropped by 7°F each hour from 5:00 a. m. to 9:00 a. m. What was the beginning temperature at 5:00 a. m. if the temperature at 9:00 a. m. was -10°F?​

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 )

It’s either a or c as the answer.