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OLEGan [10]
2 years ago
7

Which quadrilaterals have diagonals that are perpendicular?

Mathematics
1 answer:
galben [10]2 years ago
5 0
The quadrilaterals that have perpendicular diagonals, meaning they intersect at 90° angles, are a square, a rhombus, and a kite.
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Ile to 12308+11093=??????pomóżcie
BARSIC [14]

Answer:

Twoja odpowiedź brzmi 23401.

Spójrz na zdjęcie, aby uzyskać dalsze wyjaśnienia.

4 0
2 years ago
The point (2,7) is
maks197457 [2]

Answer:(8,28)

Step-by-step explanation: multiply times 4

7 0
2 years ago
A real estate company wants to build a parking lot along the side of one of its buildings using 400 feet of fence. If the side a
svetlana [45]

Answer:

1.) Therefore the side parallel to the building is 100 feet.

2.) The side perpendicular to the building is 200 feet.

Step-by-step explanation:

The parking lot, which is rectangular,  is built along the side of one of its buildings.

The side of the parking lot which is alongside the building needs no fence,

let us say that this side is of length y.

Let the perpendicular to the building be of length x.

The perimeter of the parking lot that actually needs to be fenced  = 2x + y

The amount of fencing available  = 400 feet.

Therefore 2x + y = 400    ....    (i)

Therefore y = 400 - 2x     ....    (ii)

The area of the parking lot, A = xy   =   x ( 400 - 2x)  =   400x - 2x^2   ....   (iii)

Therefore \frac{dA}{dx}  = \frac{d(400x - 2x^2}{dx}  = 400 - 4x     ....   (iv)

Also we get \frac{d^2A}{dx^2}  = -4     ....    (v)

Hence we will get the maximum value of the parking lot by equating the first order differential of area, A to zero as the second order differential of area, A is negative.

Therefore from (iv) we get 400 - 4x  = 0     ∴ x = 100 feet

y  = 400 - 2x = 400 - 200 = 200 feet.

1.) Therefore the side parallel to the building is 100 feet.

2.) The side perpendicular to the building is 200 feet.

6 0
3 years ago
Pls answer. and explain why
Alborosie

Answer:

13.5 yards

Step-by-step explanation:

as They have asked for the width (only).

9 is width and they told 2 INCHES is 3 YARDS So

3 \div 2 = 1.5

and the normal

9 \times 1.5 = 13.5

and area is

15 \times 1.5 = 22.5 \times 13.5 = 362.75 \: yards

Perimeter is

2 (13.5 + 22.5) = 72yards

Sorry if its wrong

6 0
3 years ago
Read 2 more answers
What is 15x20+-10<br> Please explain for me
damaskus [11]

Answer:

290

Step-by-step explanation:

5 0
2 years ago
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