PLEASE ANYONE HEEELLLLPP.......I NEED HELP I DONT UNDERSTAND!!!
1 answer:
Answer:
Step-by-step explanation:
The area has to be found for the floor.
The whole rectangle = length × width = x × (x-4), has an area of x(x-4).
The area x(x-4) has to be subtracted from the area of the stage and closet.
Area of stage = area of triangle : base × height × 1/2
(x-4) × 8 × 1/2
(0.5) × (8) × (x-4)
Area of closet = area of rectangle : length × width
(3) × (7)
The area of the floor = x(x-4) - 0.5(8)(x-4) - 3(7)
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Answer:
- The maximum height is 136 ft
- The time it takes to achieve this height is 1.5 s.
Explanation:
<u>1. Function for the height (given):</u>
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<u>2. Type of function</u>
That is a quadatic function, whose graph is a parabola that opens downward.
The maximum of the function, i.e. the maximum height, is the vertex of the parabola.
The vertex of a parabola with the genral equation is at the x-coordinate
<u>3. Time to achieve the maximum height</u>
Substitute b with 48 and a with - 16:
Then, time when the object achieves the maximum height it 1.5s
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<u>4. Maximum height:</u>
Replace t with 1.5 in the equation, to find the maximum height, h(1.5)
Then, the maximum height is 136 ft
Answer:
<h3>324 ft²</h3>Step-by-step explanation:
We have the triangle and the rectangle.
The formula of an area of a triangle:
b - base
h - height
The formula of an area of a rectangle:
l - length
w - width
We have b = 24 ft, h = 7 ft, l = 24 ft and w = 10 ft.
Substitute:
The area of the figure:
Substitute: