Answer:
The function would be linear because the rate of change is constant.
Step-by-step explanation:
Given
per minute
See attachment for complete question and options
First, we write the function that calculates the cost (C(t)) for t minutes.
This is calculated as:
Rewrite as:
A function that has the above format is referred to as a linear function which has the general format
Where
m represents the slope/rate and it is constant
From the list of given options, (a) is correct.
Answer:
AB = 7, BC = 7 and AC = 11
Step-by-step explanation:
Let AB = BC = a and CA = b
Now, given that the perimeter of the triangle is 25.
So, 2a + b = 25 ............ (1)
And 4 is the difference between the two unequal sides.
Hence, b - a = 4 .............. (2)
⇒ 2b - 2a = 8 ........... (3)
Now, solving equations (1) and (3) we get, 3b = 25 + 8 = 33
⇒ b = 11
Hence, from equation (2) we get a = b - 4 = 7
Therefore, AB = 7, BC = 7 and AC = 11 (Answer)
Answer:
C.7, -2
Step-by-step explanation:
A quadratic equation is a polynomial of degree two. A quadratic equation is in the form:
ax² + bx + c = 0; where a, b, c are constants.
Quadratic equation can be solved using different methods, such as completing the square method, quadratic formula.
Solving the equation 2x² - 10x - 20 = 8 using completing the square:
2x² - 10x - 20 = 8
2x² - 10x = 28
Divide through by 2, to make the coefficient of x² to be 1:
x² - 5x = 14
Add to both sides, the square of half of the coefficient of x [i.e. (-5/2)² = 6.25]
x² - 5x + 6.25 = 14 + 6.25
(x - 2.5)² = 20.25
taking square root of both sides:
x - 2.5 = √20.25
x - 2.5 = ±4.5
x = 2.5 ± 4.5
x = 2.5 + 4.5; or x = 2.5 - 4.5
x = 7 or x = -2
Answer:
radius-29.0113 in
diameter-58.0226 in
area-2,644.14 in squared
Step-by-step explanation:
I am sorry if it's wrong, but i am 99% sure it is.
