All categories

2 years ago

Please answer thisss

Mathematics

2 answers:

4vir4ik [10]2 years ago

8 0

If the shaded region is the circle (which it is),

The area of it is 78.5cm²

You can find the area of a circle by using the formula: pi • radius squared

In this case, the question states to use 3.14 for pi so our equation would look like:

3.14 • 5 • 5 (5 squared is same as 5 times5)

And that is how you get 78.5cm²

lesantik [10]2 years ago

5 0

Find the area of the square

Find the area of the circle

Subtract the area of the circle from the area of the square.

area of square = 10 x 10 = 100 sq. Cm

Area of circle = pi x r ^2 = 3.14 x 5^2 = 78.5 sq. Cm

area of shard region = 100 - 78.5 = 21.5 cm^2

You might be interested in

Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours. How many hour

Deffense [45]

Answer:

12 hours

Step-by-step explanation:

Let Theo's siste can paint a fence in x times

Given.

Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours.

$\frac{1}{x}+\frac{1}{3x} =\frac{1}{9}\\\frac{3+1}{3x} =\frac{1}{9} \\\frac{4}{3x}=\frac{1}{9}$

Apply cross multiplication

$x=\frac{9\times 4}{3}\\x=\frac{36}{3} \\x=12hours$

Theo’s sister to paint the fence in 12 hours.

8 0

3 years ago

Using substitution x+3y=3 3y-2x=12

frez [133]

Step-by-step explanation:

Given :-

x + 3y = 3
3y - 2x = 12

And we need to solve the equation using Substituting method . So on taking the first equation ,

$\rm\implies x + 3y = 3 \\\\\rm\implies x = 3 - 3y$

Put this value in (ii) :-

$\rm\implies 3y - 2x = 12 \\\\\rm\implies 3y - 2(3-3y)=12\\\\\rm\implies 3y -6-6y = 12 \\\\\rm\implies -3y = 18 \\\\\rm\implies y = -6$

Put this Value in (I) :-

$\\\\\rm\implies x = 3-3*-6 \\\\\rm\implies x = 3+18 \\\\\rm\implies x = 21$

Hence the Value of x is 21 and y is (-6) .

4 0

2 years ago

Read 2 more answers

You need to Find the angle x

FinnZ [79.3K]

Answer:

its 62 degrees

Step-by-step explanation:

the triangle is a isolosies triangle

7 0

2 years ago

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 Which of the following shou

Simora [160]

To make a box and whisker plot, you need to draw a number line that would be able to represent all the values in the data (look at your lowest and highest numbers).

You will need to graph the following 5 points on your number line (median, lower quartile, lower extreme, upper quartile, and upper extreme).

Create a box around the quartiles and extend the lines to the extremes.
See the picture I have attached for the box and whisker box for this data set.

7 0

2 years ago

Quadrilateral WXYZ is on a coordinate plane. Segment XY is on the line x − 3y = −12, and segment WZ is on the x − 3y = −6. Which

Nostrana [21]

Answer:

Equation shown

Step-by-step explanation:

Eq(1): x-3y=-12

X=-12+3y

=-4+y

Eq(2): x-3y=-6

X=-6+3y

=-2+y

4 0

2 years ago

Read 2 more answers