Ask question

Ask question

All categories

3 years ago

14

Calculate the perimeter of the shape to the nearest whole number

1 answer:

Lesechka [4]3 years ago

3 0

Answer:

Option B

Step-by-step explanation:

Perimeter of the given figure = Sum of measures of all sides

= AB + BC + CA

Since, AB = BC = 9 cm (Radii)

CA = Length of arc CA which is the quarter of the circumference of a circle with radius 9 cm

CA = $\frac{1}{4}(\text{Circumference of the circle})$

= $\frac{1}{4}(2\pi r)$

= $\frac{1}{2}(\pi )(9)$

= 14.14 cm

Now perimeter of the shape = 9 + 9 + 14.14

= 32.14 cm

≈ 32 cm

Therefore, Option B will be the correct option.

You might be interested in

Which of the following systems of inequalities represents the graph?

mixer [17]

Answer:

Option D.

Step-by-step explanation:

Consider the below figure attached with this question.

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

From the below figure it is clear that the a solid line passes through the points (-2,0) and (0,4). So, the equation of related line is

$y-0=\frac{4-0}{0-(-2)}(x-(-2))$

$y=2(x+2)$

$y=2x+4$

$-2x+y=4$

All area above the solid line is shaded. It means the sign of inequality is ≥.

$-2x+y\geq 4$

From the below figure it is clear that the a dashed line passes through the points (2,0) and (0,2). So, the equation of related line is

$y-0=\frac{2-0}{0-(2)}(x-(2))$

$y=-1(x-2)$

$y=-x+2$

$x+y=2$

All area below the dashed line is shaded. It means the sign of inequality is <.

$x+y$

System of inequality is

$-2x+y\geq 4$

$x+y$

Therefore, the correct option is D.

5 0

3 years ago

I will vote u brainliest if u answer so pls do

Lera25 [3.4K]

Answer: For this, you have to calculate the Unit value,

Unit value of 1rst one, 4.99/6 = 0.83

Unit value of 2nd one, 7.99/10 = 0.79

As, 2nd one is cheaper, so it is better :))

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

PLEASE HELP!! URGENT!!!! UNIT TEST!!!!

slavikrds [6]

ANSWER

$y=-\frac{4}{3}x+\frac{16}{3}$

Or

$3y+4x=16$

EXPLANATION

Let us find the gradient of the line:

$-3x+4y=4$ by rewriting it in the slope intercept form.

$\Rightarrow 4y=3x+4$

We divide through by 4 now;

$\Rightarrow y=\frac{3}{4}x+1$

This is now in the form;

$y=mx+c$

where

$m=\frac{3}{4}$ is he slope.

This implies that the slope of the line that is perpendicular to this line will be the negative reciprocal of $m=\frac{3}{4}$ .

Thus the perpendicular line has slope,

$m=\frac{-1}{\frac{3}{4}}= -\frac{4}{3}$ .

Let the perpendicular line have equation,

$y=mx+c$

When we substitute the slope we have;

$y=-\frac{4}{3}x+c$

We substitute the point. $(4,0)$ to find c.

$0=-\frac{4}{3}(4)+c$

$0=-\frac{16}{3}+c$

$\frac{16}{3}=c$

We substitute c to obtain;

$y=-\frac{4}{3}x+\frac{16}{3}$

Or

$3y+4x=16$

7 0

3 years ago

Read 2 more answers

Find the value of x in the isosceles triangle shown below.

iragen [17]

Answer:

ur answer

hope u will finish it fast

8 0

3 years ago

Give an example of a benchmark fraction and an example of a mixed fraction.

34kurt

Answer:

Benchmark fractions: 4/12 5/12 6/12 7/12

Mixed Fractions: 1 1/2 2 3/4 5 1/4 8 2/8

Step-by-step explanation:

A mixed fraction is simply a fraction with a whole number.

A benchmark fraction is a fraction used to compare and order other fractions.

8 0

3 years ago

Read 2 more answers