Answer:
The rate at which the temperature is changing at 4 p.m. is
Step-by-step explanation:
The derivative, is the instantaneous rate of change of with respect to when .
We know that the daily temperature in degrees Fahrenheit of Phoenix in the summer can be modeled by the function
,
where is hours after midnight.
To find the rate at which the temperature is changing at 4 p.m. First, we must find the derivative of this function.
So,
Then, at 4 p.m means because is hours after midnight.
Thus,
The rate at which the temperature is changing at 4 p.m. is
first you turn the fractions into inproper fractions by multiplying the whole number by the denomonator and adding the numerator
4×4=16
16+3=19
19/4
4×7=28
28+1=29
29/7
keep the denomonators the same. now that you've converted them into inproper fractions you can multiply them
19/4 × 29/7=551/28
there is no way to simplify this answer so this is the final answer
Answer:
Tristan will need 32 feet of material for the perimeter of the garden.
Step-by-step explanation:
Given that
Area of square garden = A = 64 square feet
Perimeter = P = ?
We know that for calculation of perimeter, length of side of square is required which is not directly given in the question. The area will be used to calculate length of side and then length will be used to calculate the perimeter.
So,
s is for side
Putting the value of area
Taking square root on both sides
The length of side is 8 feet.
Perimeter will be:
Hence,
Tristan will need 32 feet of material for the perimeter of the garden.
Step-by-step explanation:
B is ur correct answer ☺️