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3 years ago

Complete the following multiplication. Thank you :D

Mathematics

1 answer:

Neko [114]3 years ago

6 0

A) 1. 3/4
2. 1/2 x 3/4 or 3/8
3. -1 x 1/2 x 3/4 or -3/8
4. 1 x -1 x 1/2 x 3/4 or -3/8

b) 3/35

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Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen, She has 32 m

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4 years ago

Find the coordinates of the center of the given circle. (x - 5)2 + (y + 3)2 = 25 (5, 3) (5, -3) (-5, 3)

Stella [2.4K]

When you write the equation of a circle in the form

$(x-x_0)^2+(y-y_0)^2=r^2$

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So, in your case, the center is (5,-3) and the radius is 5.

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4 years ago

What is the direct linear variation equation for the relationship?

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$\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{{ K}}&\cdot&x
\\ \\
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\end{array}
\\ \quad \\

\begin{cases}
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3 0

3 years ago

The cost of carpeting the floor of a room, whose breadth is twice it’s height and length is twice it’s breadth, at the rate of R

Leno4ka [110]

Answer:

The cost of plastering the four wall at the rate of Rs 20 per meter square is Rs 3,543.4

Step-by-step explanation:

Given as :

The cost of carpeting a room = Rs 64,000

The rate of carpeting = Rs 540 m²

The breadth is twice its height

The length is twice its breadth

Let The length = L m

The breadth = B m

The height = L m

So, according to question

L = 2 B and B = 2 H

Now, Area of rectangular carpet = Length × Breadth

Or, A = L × B

Or, A = 2 B × B

∵ The cost of carpeting at the rate of Rs 540 per m² = Rs 64,000

So, area = $\frac{64000}{540}$

Or, 2× B² = 118.518

Or, B² = $\frac{118.518}{2}$

Or, B² = 59.259

I,.e B = $\sqrt{59.259}$ = 7.69 m

The length = 2 B

I.e L = 2 × 7.69 = 15.38 m

and H = $\frac{B}{2}$

I.e H = $\frac{7.69}{2}$ = 3.84 m

So, Length = 15.38 m , Breadth = 7.69 m , height = 3.84 m

∵ The area of four wall = 2× ( Length + Breadth ) × height

or, The area of four wall = 2× ( 15.38 + 7.69 ) × 3.84

Or, The area of four wall = 177.17 m²

Now The rate of plastering the four wall = Rs 20 per square meter

So, The cost of plastering the four wall = area of four wall × rs 20

∴ The cost of plastering the four wall = 177.17 × Rs 20

I.e The cost of plastering the four wall = Rs 3,543.4

Hence The cost of plastering the four wall at the rate of Rs 20 per meter square is Rs 3,543.4 answer

7 0

3 years ago