1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
malfutka [58]
3 years ago
9

Ayo helppp ill give u anthing

Mathematics
1 answer:
kicyunya [14]3 years ago
4 0

Answer:

16.9 m

Step-by-step explanation:

Start with a half a circle. The central angle of a semicircle is 180 deg.

Now subtract 21 deg on each side.

180 - 21 - 21 = 138

The central angle is 138 deg.

The radius is 7 m.

Now we use the formula for the length of an arc of a circle given the radius of the circle and the central angle of the arc.

s = \dfrac{n}{360^\circ}2 \pi r

s = \dfrac{138^\circ}{360^\circ}2(3.14159)(7~m)

s = 16.9~m

You might be interested in
Find all real solutions of the equation. (Enter your answers as a comma-separated list.)
34kurt

Answer:

0,1

Step-by-step explanation:

x^2 − x = 0

Factor out an x

x(x-1) =0

Using the zero product property

x=0     x-1=0

Solving each equation

x=0    x-1+1 =0+1

x=0      x=1

The solutions are

x=0,1

7 0
3 years ago
The diagram shows a circle inside a square 16cm Work out the area of the circle
vesna_86 [32]

i can help if you have the picture

5 0
3 years ago
Read 2 more answers
17. Find the reflection of the point A(6.-1) in the x-axis.<br>​
castortr0y [4]

Answer:

Your answer will be (6,1)

Step-by-step explanation:

I know this because a reflection over the x-axis is (x,y) -> (x,-y) If you apply this to (6,-1) you get (6,1).

5 0
2 years ago
are any two regular polygons similar. The area of the smaller figure is about 390 cm^2. choose the best estimate of the area of
galben [10]

Answer:

The best estimate of the area of the larger figure is 693\ cm^{2}

Step-by-step explanation:

step 1

<em>Find the scale factor</em>

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x-----> the corresponding side of the larger figure

y-----> the corresponding side of the smaller figure

so

z=\frac{x}{y}

we have

x=12\ cm

y=9\ cm

substitute

z=\frac{12}{9}=\frac{4}{3} -----> the scale factor

step 2

<em>Find the area of the larger figure</em>

we know that

If two figures are similar, then the ratio of its  areas is equal to the scale factor squared

Let

z----> the scale factor

x-----> the area of the larger figure

y-----> the area of the smaller figure

so

z^{2}=\frac{x}{y}

we have

z=\frac{4}{3}

y=390\ cm^{2}

substitute and solve for x

(\frac{4}{3})^{2}=\frac{x}{390}

(\frac{16}{9})=\frac{x}{390}

x=390*16/9=693.33\ cm^{2}

4 0
2 years ago
HELP PLZ I NEED TO PASS LESSON
Ierofanga [76]

Step-by-step explanation:

452

8 0
3 years ago
Other questions:
  • Is p=7 a solution of the equation 4p - 5 =16​
    13·2 answers
  • Express each ratio as a fraction
    6·1 answer
  • Write two fractions that are equivalent to 2/6
    14·2 answers
  • In the piece-wise function graphed below, which is the correct equation for when
    11·1 answer
  • How do you add someone on brainly
    8·2 answers
  • Find the circumferences of both circles to the nearest hundredth.
    8·1 answer
  • 50 is 15% of what number?
    9·1 answer
  • A number is written in scientific notation.
    12·1 answer
  • A toy airplane climbs 30 vertical feet while traveling 50 feet horizontally. A toy helicopter climbs 20 feet while traveling 40
    9·2 answers
  • What the possible coordinates?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!