k= ____________
Answer: THE ANSWER IS 3
Step-by-step explanation:
length = 22 cm; width = 18 cm
length = 24 cm; width = 16 cm
length = 23 cm; width = 14 cm
Answer:
Length = 25 cm , Width = 15 cm.
Step-by-step explanation:
Given : The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 80 cm.
To find : What are the dimensions of the rectangle.
Solution : We have given
Perimeter = 80 cm .
According to question :
Let width of rectangle = W .
Length is twice its width.
L = 2W .
Length of a rectangle is 5 centimeters less than twice its width.
L = 2W - 5.
Then ,
Perimeter = 2 ( length + width).
Plug the values
80 = 2 ( 2W - 5 + W ) .
80 = 2( 3W -5) .
On dividing both sides by 2
40 = 3W - 5 .
On adding both sides by 5.
45 = 3 W .
On dividing both sides by 3.
W = 15 cm .
L = 2W - 5.
L = 2 ( 15) - 5 .
L = 30 -5 .
L = 25 cm .
Therefore, Length = 25 cm , Width = 15 cm.
Answer:
1/4
Step-by-step explanation:
Use the equation of a line from 2 points.
Given:
The net value of the bakery (in thousands of dollars) t months after its creation is modeled by
Paul wants to know what his bakery's lowest net value will be.
To find:
The function in a different form (factored or vertex) where the answer appears as a number in the equation.
Solution:
Factor form is used to find the x-intercepts and vertex form is used to find the extreme values (maximum or minimum). So, here we need to find the vertex form.
We have,
Adding and subtract square of half of 6 in the parenthesis, we get
Vertex form:
where, (h,k) is vertex.
On comparing this equation with vertex form, we get the of the function is (3,-32).
Therefore, the vertex form is and the function has minimum value at (3,-32). It means, minimum net value of the bakery is -32 after 3 months.
The vertex form is v(t) = 2(t - 3)² - 32 and the function has a minimum value at (3,-32). It means the minimum net value of the bakery is -32 after 3 months.
Given that,
Paul opened a bakery.
The net value of the bakery (in thousands of dollars) t months after its creation is modelled by the equation v(t) = 2t²- 12t - 14.
Paul wants to determine the bakery's lowest net value.
To rewrite the function in a different form,
Find the vertex of the quadratic equation.
The vertex form of a quadratic equation is given by,
v(t) = a(t-h)² + k,
Where (h, k) represents the coordinates of the vertex.
Proceed, v(t) = 2t² - 12t - 14,
v(t) = 2(t² - 6t) - 14,
v(t) = 2(t² - 6t + 3² - 3²) - 14
v(t) = 2(t - 3)² - 32
Vertex form:
v(t) = a(t-h)² + k,
where, (h,k) is vertex.
On comparing this equation with vertex form, we get the function is (3,-32).
Therefore,
The vertex form is v(t) = 2(t - 3)² - 32 and the function has a minimum value at (3,-32). It means minimum net value of the bakery is -32 after 3 months.
To learn more about quadratic equations visit:
#SPJ3