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AURORKA [14]
3 years ago
12

What is the CIRCUMFERENCE of a circle with a radius of 18m?

Mathematics
1 answer:
Lyrx [107]3 years ago
7 0

Answer:

the first one is  113.04m

the second one is 615.44 cm

the third one is 530.66 ft

the fourth one is 163.28 in

the fifth one is 31.4 m

the sixth one is 28.26 m

the seventh one is 314

the eightth one is 50,24

finally finished:)))

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What the length of a rectangle's side (height) that is 10 cm wide and It's diagonal is 18.03 cm long?
yawa3891 [41]

Answer:

The height of a rectangle's side is 15 cm tall.

Step-by-step explanation:

You can use the pythagorean theorem to solve this.

The pythagorean theorem is:

{a}^{2}  +  {b}^{2}  =  {c}^{2}

The hypotenuse represents the c. One the diagram, the hypotenuse represents the diagonal. The letters a and b represents the sides (just not the diagonals).

Let's plug in.

{a}^{2}  +  {b}^{2}  =  {c}^{2}  \\ {a}^{2}  +  {10}^{2}  =  {18.03}^{2}  \\  {a}^{2}  + 100 = 325.0809 \\    \frac{ - 100 =  - 100}{ {a}^{2}  =  \sqrt{225.0809} }  \\ a = 15.00

Therefore, its 15 cm.

6 0
3 years ago
I need help ahhh <br><br><br> Graph y= -1/3x + 5
Montano1993 [528]
Start with putting the dot on the right to positive 5 on the y-axis (the vertical line) then from there use rise over run method. since it is negative you will move the dot on the left down instead. you will go DOWN 1 and to the LEFT 3. i’m sorry if i’m wrong:(((
8 0
3 years ago
A brand of cereal had 1.21.21, point, 2 milligrams (\text{mg})(mg)left parenthesis, start text, m, g, end text, right parenthesi
Natasha_Volkova [10]

Answer:

50\%

Step-by-step explanation:

Previous Iron content per serving=1.2 mg

Current Iron content per serving=1.8 mg

Increase in Iron content per serving=1.8-1.2=0.6 mg

Percentage of Iron Increase

=\dfrac{\text{Increase in Iron Content}}{\text{Previous Iron Content}} X 100\\=\dfrac{0.6}{1.2}X100 \\=50\%

8 0
3 years ago
4squard root 93 rounded to the nearest. hundredth
mestny [16]

Answer:

95

Step-by-step explanation:


5 0
3 years ago
In ΔXYZ, the measure of ∠Z=90°, the measure of ∠X=57°, and XY = 8 feet. Find the length of YZ to the nearest tenth of a foo
vovikov84 [41]

Answer:

9.5 feet

Step-by-step explanation:

We solve this question using Sine rule

XY/sin X = YZ/Sin Z

From the question:

∠Z=90°

∠X=57°

XY = 8 feet.

8/sin 57 = YZ/sin 90

Cross Multiply

sin 57 × YZ = 8 × sin 90

YZ = 8 × sin 90/sin 57

YZ = 9.53891 feet

Approximately = 9.5 feet

Therefore, the length of YZ is 9.5 feet

6 0
3 years ago
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