All categories

4 years ago

A rectangular napkin has an area of 88 square centimeters and a length of 8 centimeters.

Mathematics

2 answers:

Volgvan4 years ago

4 0

Answer:

11 cm

Step-by-step explanation:

a= l x w

88= l x 8

88/8= 11

so ll cm is the width of the napkin

Svetllana [295]4 years ago

3 0

11 centimeters
This is because a rectangle has an area of length times width and so you can divide 88 by 8 to get 11

You might be interested in

What total length of ribbon is needed to Line the two long sides of the hat?

frozen [14]

Answer:

Total length of ribbon to line the long sides will be 22 in

Step-by-step explanation:

In the given figure of kite if we draw a line "h" vertically will form two right angle triangles.

Then by applying Pythagoras theorem in both the triangles.

h²= (3x + 5)² + (2x + 1)² ------(1)

h²= (5x + 1)² + 5² ------(2)

By equating both the equations

(3x + 5)² + (2x + 1)² = (5x + 1)² + 25

9x² + 25 + 30x + 4x² + 4x + 1 = 25x² + 10x + 1 + 25

13x² + 34x + 26 = 25x² + 10x + 26

13x² - 25x² + 34x - 10x + 26 - 26 = 0

- 12x² + 24x = 0

12x² - 24x = 0

x² - 2x = 0

x(x - 2) = 0

x = 2

Now we will put x = 2 in the measure of sides of the kite.

Side 1 = (3x + 5)

= 3×2 + 5

= 11

Side 2 = (5x + 1)

= 5×2 + 1

= 11

Side 3 = (2x + 1)

= 2×2 + 1

= 5

Therefore, Total length of ribbon to line the long sides will be = 11 + 11

= 22 in.

6 0

4 years ago

Read 2 more answers

Rewrite the expression in exponential form

mylen [45]

$\sqrt[7]{c^5} = c^ \frac{5}{7}$

6 0

4 years ago

Read 2 more answers

Mr.Afzal bought an article for Rs4400 for 3years at 8 percent what was the interest charge?

zimovet [89]

$\large\underline{\underline{\red{\rm\blue{\longmapsto} Step-by-step\: Explanation:-}}}$

Here , the given data is :

Principal = Rs 4400 . ( P )
Time = 3 years . ( T )
Rate of Internet = 8% . ( R )

We can calculate Simple Interest using ,

$\boxed{\purple{\bf Simple\: Interest=\dfrac{P\times\:R\:\times\:T}{100}}}$

On substituting the respective values ,

⇒ SI = P × R × T / 100.

⇒ SI = Rs 4400 × 8 × 3 / 100 .

⇒ SI = Rs 44 × 8 × 3 .

⇒ SI = Rs 1,056 .

Hence the required Interest is Rs 1,056.

5 0

3 years ago

Which of the following is true?

devlian [24]

Answer:

Every 3D shape has edges

6 0

3 years ago

Let R be the triangular region in the first quadrant with vertices at points (0,0), (a,0), and (0,b), where a and b are positive

Salsk061 [2.6K]

Answer:

volume of the solid generated when region R is revolved about the x-axis is π ₀∫^a ( $\frac{-b}{a}$ x + b )² dx

Step-by-step explanation:

Given the data in the question and as illustrated in the image below;

R is in the region first quadrant with vertices; 0(0,0), A(a,0) and B(0,b)

from the image;

the equation of AB will be;

y-b / b-0 = x-0 / 0-a

(y-b)(0-a) = (b-0)(x-0)

0 - ay -0 + ba = bx - 0 - 0 + 0

-ay + ba = bx

ay = -bx + ba

divide through by a

y = $\frac{-b}{a}$ x + ba/a

y = $\frac{-b}{a}$ x + b

so R is bounded by y = $\frac{-b}{a}$ x + b and y =0, 0 ≤ x ≤ a

The volume of the solid revolving R about x axis is;

dv = Area × thickness

= π( Radius)² dx

= π ( $\frac{-b}{a}$ x + b )² dx

V = π ₀∫^a ( $\frac{-b}{a}$ x + b )² dx

Therefore, volume of the solid generated when region R is revolved about the x-axis is π ₀∫^a ( $\frac{-b}{a}$ x + b )² dx

6 0

3 years ago