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3 years ago

What is the area of the rectangle (18 feet by 8 feet) and is this true of false 0.087>0.8?

Mathematics

2 answers:

Delicious77 [7]3 years ago

7 0

The area of the triangle is 72 ft and .87 is bigger than .8 so it is false

Readme [11.4K]3 years ago

7 0

The area of a rectangle is 144 because 18x8=144
that statement is false .087 is not greater than .8

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Dividing fractions 1/8 / 1/3

agasfer [191]

1/8×3/1=3/8
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4 years ago

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Rounded to the nearest hundredth: 73 74 74 75 76 77 77 78 78 78 79 80 80 80 81 81 81 81 82 82 82 82 83 83 84 86 86 87 88

inn [45]

Answer is 100 as the next would be 200

7 0

2 years ago

The left and right page numbers of an open book are two consecutive integers whose sum is 321

PIT_PIT [208]

Answer:

160,160

Step-by-step explanation:

let the first page be X

second one be x+1

x+x+1=321

2x=320

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pages 160 161

6 0

3 years ago

AB = x + 8

vivado [14]

Answer: The length of BC is 7

Step-by-step explanation: Assuming the lengths of the opposite sides of the quadrilateral are congruent, then

AB=DC and

AD=BC

Inputting the values of AB, DC and AD as given in the question:

x + 8 = 3x ...(1)

x + 3=? ...(2)

We have to solve for the value of x to get the actual lengths and thus ascertain BD.

From equation (1):

8 = 3x - x

8 = 2x

8/2 = x

Therefore, x = 4.

If x = 4 then equation(2) would be

4 + 3= 7.

Hence, the actual lengths of the quadrilateral are:

AB = 4 + 8. DC = 3(4)

=12. =12.

AD = 4 + 3. AD = BC

= 7. Therefore, BC = 7.

Hence, it is confirmed that quadrilateral ABCD is a parallelogram since both the opposite sides are proven to be congruent.

3 0

3 years ago

A dog is leashed to the corner of a house with a 20 ft long leash. How much running area does the dog have? Round your answer to

11111nata11111 [884]

Answer:

The dog's running area is approximately 942 feet².

Step-by-step explanation:

The dog is leashed to a fixed point, the leash has a length of 20 ft, therefore he can rotate around that point at the maximum distance equal to the length of the leash. This pattern forms a circle, but there is an obstruction, which is the corner of the house. This obstruction takes an arc of the original circle, so the running area of the dog is the area of the whole circle minus the area of the arc formed by the corner of the house.

$\text{dog's area} = \text{circle's area} - \text{arc's area}\\\\\text{dog's area} = pi*(20^2) - \frac{90}{360}*pi*(20^2)\\\\\text{dog's area} = \frac{270}{360}*pi*(400)\\\\\text{dog's area} = 942.477\text{ feet}^2$

The dog's running area is approximately 942 feet².

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4 years ago