The Celsius temperature, C, of a chemical reaction increases and then decreases over time according to the formula C(t)=- +8t +93, where t represents the time in minutes. Use the Quadratic Formula to help
determine the amount of time, to the nearest tenth of a minute, it takes for the reaction to reach 110 degrees
Celsius.

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted