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2 years ago

PLEASE HELP DUE TODAY

Mathematics

1 answer:

algol132 years ago

6 0

Answer:

B (6, 8)

C (1, 5)

see attached diagram (qu 1 is blue, qu2 is red)

Step-by-step explanation:

A = (2, 3)

If B is 4 right and 5 up from point A, then

B = (2 + 4, 3 + 5) = (6, 8)

2. C = (9, 7)

If D is 8 left and 2 down from point C, then

C = (9 - 8, 7 - 2) = (1, 5)

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You design a tree house using a coordinate plane in which the coordinates are measured in feet. The vertices of the floor are (-

Nikitich [7]

Answer:

Perimeter = 28 yards

Area = 49 square yards.

Step-by-step explanation:

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Let as consider the vertices of the floor are A(-2,-3), B(-2,4), C(5,4) and D(5,-3).

Using distance formula, we get

$AB=\sqrt{(-2-(-2))^2+(4-(-3))^2}=\sqrt{(-2+2)^2+(4+3)^2}=\sqrt{0+7}^2=7$

Similarly,

$BC=\sqrt{(5-(-2))^2+(4-4)^2}=7$

$CD=\sqrt{(5-5)^2+(4-(-3))^2}=7$

$AD=\sqrt{(5-(-2))^2+(-3-(-3))^2}=7$

It is conclude that, $AB=BC=CD=AD$ .

From the given points it is clear that all sides lie on either vertical or horizontal lines.

Since all sides are equal, and adjacent sides are perpendicular, therefore, the base is a square with edge 7 yards.

Perimeter of square floor is

$P=4a=4(7)=28\text{ yards}$

Area of square floor is

$A=a^2=7^2=49\text{ sq. yards}$

Therefore, the perimeter is 28 yards and the area is 49 square yards.

7 0

3 years ago

Cecilia's train travled at 240 miles in 3 hours. How far will it travel in 5.5 hours.

yanalaym [24]

5.5<span>÷3 is 1.83333333, that times 240 is 440</span>

6 0

3 years ago

Simplify 5 – 2y + (-8y) + 5.5.

zavuch27 [327]

Answer:

-10y + 10.5

Step-by-step explanation:

5 - 2y + (-8y) + 5.5

5 - 2y - 8y +5.5

-10y + 10.5

3 0

2 years ago

Read 2 more answers

Divide 5600 in the ratio 4 :5:7 <br>

Elis [28]

Answer:

Step-by-step explanation:

So in our case, let assume 'x' as a common factor.

Thus,

4x + 5x + 7x = 5600;

16x = 5600;

x = 5600/16 = 350.

So,

4x= 350*4 =1400;

5x= 350*5 = 1750; &

7x= 350*7 = 2450.

Your answer is, 5600 = 1400+1750+2450 which is in ratio of 4:5:7.

5 0

2 years ago

Garth estimated the height of the door to his classroom in meters .What is a reasonable estimate?

Paraphin [41]

The most reasonable answer would be 2 meters since two meters equals about 6 feet.

6 0

3 years ago

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PLEASE HELP DUE TODAY​

PLEASE HELP DUE TODAY