Answer:
a) 
: at time t = 2 minutes the temperature will be 8.265 degress
b) 
: the temperature will be 6 degrees at time t = 3.55 minutes.
Step-by-step explanation:
When dealing with temperature changes, it's best to work with Newton's Law of Cooling.
here:
: the temperature in the room.
: ambient (or outdoor) temperature (that always remains constant, in our case: 
)
: are constants
Our conditions are provided:
1) 
2) 
using the first condition
using the second condition:
we can use our calculated value of C to find k
Finally we can put these constants back in the main equation:
or 
a) Reading after one more minute?
so it's asking:
T(2) = ?
Hence, after one more minute the temperature of the room will be 8.267 degrees
b) When will it be 6 degrees?
T(t) = 6?
Hence at t = 3.55 minutes the temperature of the room will be 6 degrees.
Answer:
Step-by-step explanation:
Please give me brainliest, I did my best
Answer:
325 yards
Step-by-step explanation:
To find the area of a parallelogram, it is base times height.
Therefore, it is 15 times 65/3 which gives you 325.
I changed 21 2/3 to 65/3 so I could put it into the calculator the easiest. They are the same fraction.
Answer:
490 female students
Step-by-step explanation:
If 70% of students are female, 30% are male.
If 30% of students = 210 students, we can divide both sides of the equation by 3.
30/3 = 10
210/3 = 70
10% of students = 70 students
To get 70% of students, multiply both sides by 7.
10*7 = 70
70 * 7 = 490
70% of students = 490 students
Hope this helps!
The absolute value functions that will be narrower than the parent function are: f(x) = 2.9|x| and f(x) = 1.2|x + 8|
For an absolute value function to be narrower than its parent function, the following highlights must be true:
- The function must be dilated
- The scale of dilation must be greater than 1
From the given options, the dilated functions are: f(x) = 2.9|x|, f(x) = 1.2|x + 8| and f(x) = 0.7|x| – 3.2
However, the dilated functions that have a scale of dilation greater than 1 are: f(x) = 2.9|x| and f(x) = 1.2|x + 8|
Hence, the absolute value functions that will be narrower than the parent function are: f(x) = 2.9|x| and f(x) = 1.2|x + 8|
Read more about absolute value functions at:
brainly.com/question/7515527
