Temperature readings T (in°C) were recorded every three hours from midnight until 6 pm. The time t was measured in hours from midnight.
______________________
| T | O | 3 | 6 | 9 | 12 | 15 | 18 |
—————----------------------------
| T | 24 |26|28|30| 32|30| 28 |
(a) use the data sketch a rough graph of T as a function of t.
(b) Assuming that the peak temperature was recorded during 12 noon, what do you think is the temperature by 9 PM?
Answers
Answer:
Mark me brainliest
Step-by-step explanation:
x=1 or x=−5
step-by-step explanation:
let's solve your equation step-by-step.
2x2+8x−10=0
step 1: factor left side of equation.
2(x−1)(x+5)=0
step 2: set factors equal to 0.
x−1=0 or x+5=0
x=1 or x=−5
Answer:
(a) Graph attached
(b) At 9PM = 2100hrs, the temperature is 26 °C
Step-by-step explanation:
Plotting the graph of T vs t
where T is the temperature in °C
and t is the time in hrs.
(a) We will now plot the graph
if t = 0 , T = 24 Therefore, plotting (0, 24)
if t = 3 , T = 26 Therefore, plotting (3, 26) and so on.
We thus obtain the attached graph.
(b) Clearly, the peak temperature is at 12 noon.
We need to find the temperature by 9PM = 2100 hrs
From the graph, we can see that at 2100, the temperature is 26 °C.
