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3 years ago

A circular rug has a diameter of 6 feet. What is the area of the rug?

Mathematics

2 answers:

Blababa [14]3 years ago

5 0

Answer:

He's correct it's B

It's 28.26 ft2

Step-by-step explanation:

SVEN [57.7K]3 years ago

3 0

B) 28.26 squared feet.

To fine area, you need the radius. radius is half of diameter. half of 6 is 3. A=πr2=π·32≈28.27433

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The polynomial X3+ 8 is equal to

shtirl [24]

Answer:

(x + 2)(x² - 2x + 4)

Step-by-step explanation:

x³ + 8 ← is a sum of cubes and factors in general as

a³ + b³ = (a + b)(a² - ab + b²), thus

x³ + 8

= x³ + 2³

= (x + 2)(x² - 2x + 4)

4 0

3 years ago

A car can travel 476 miles on 14 gallons of gas. Write an equation relating the distance d to the number of gallons g. How many

Irina-Kira [14]

1 gallon is equal to 34 miles so 1g = 34 d it would take 17 gallons of gas to travel 578 miles

4 0

2 years ago

One factor in flood safety along a levee is the area that will absorb water should the levee break. The coordinates that make up

Anit [1.1K]

Let

$A(0,0)\\ B (2.8, 2.1)\\C(4.3, 4.4)$

using a graph tool

see the attached figure

The figure is a triangle

we know that

The Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.

Hero's Formula is equal to

$Area=\sqrt{p*(p-a)*(p-b)*(p-c)}$

where

p is is half the perimeter of the triangle

a,b,c are the lengths of the sides of a triangle

Step $1$

Find the length sides of the triangle

a) Find the distance AB

$d =\sqrt{(y2-y1)^{2} +(x2-x1)^{2}}$

Substitute

$d =\sqrt{(2.1-0)^{2} +(2.8-0)^{2}}$

$d =3.5\ mi}$

b) Find the distance AC

$d =\sqrt{(y2-y1)^{2} +(x2-x1)^{2}}$

Substitute

$d =\sqrt{(4.4-0)^{2} +(4.3-0)^{2}}$

$d =6.15\ mi}$

c) Find the distance BC

$d =\sqrt{(y2-y1)^{2} +(x2-x1)^{2}}$

Substitute

$d =\sqrt{(4.4-2.1)^{2} +(4.3-2.8)^{2}}$

$d =2.75\ mi}$

Step $2$

Find the perimeter of the triangle

$Perimeter= 3.5+6.15+2.75 =12.4\ mi$

Find the half of the perimeter

$p=\frac{12.4}{2} = 6.2\ mi$

Step $3$

Find the area of the triangle

$Area=\sqrt{6.2*(6.2-3.5)*(6.2-6.15)*(6.2-2.75)}$

$Area=\sqrt{6.2*(2.7)*(0.05)*(3.45)}$

$Area= 1.69\ mi^{2}$

therefore

the answer is the option

a) 1.65 mi^2.

4 0

3 years ago

Read 2 more answers

Solve 7x - 2 = 5x + 14

Alexxx [7]

Answer:

Step-by-step explanation:

7x - 5x = 14 + 2

2x = 16

x = 16/2

x = 8

4 0

3 years ago

What is the y-intercept of the line ?

antiseptic1488 [7]

It’s 1
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8 0

2 years ago

Read 2 more answers