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Agata [3.3K]
3 years ago
6

I'M GOING TO POST ANOTHER IN 30 MIN AND THE FIRST 2 WILL WIN 100 POINTS. SEE YOU IN 30 MIN

Mathematics
2 answers:
sveta [45]3 years ago
7 0

Answer:

tyyyyyyyy

Step-by-step explanation:

Pavlova-9 [17]3 years ago
4 0

Answer:

OKAY HEHHEHEHEHEHEHHE

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A central angle of a circle measures 1.5 radians. If the radius of the circle is 3 cm, what is the area of the related sector?
soldi70 [24.7K]

Answer:

Option B. 6.75\ cm^{2}

Step-by-step explanation:

we know that

The area of a circle is equal to

A=\pi r^{2}

we have

r=3\ cm

substitute

A=\pi (3^{2})=9 \pi\ cm^{2}

Remember that

2\pi radians subtends the complete circle of area 9 \pi\ cm^{2}

so

by proportion

Find the area of the related sector for a central angle of 1.5 radians

Let

x------> the area of the related sector

\frac{9 \pi}{2\pi}\frac{cm^{2}}{radians} =\frac{x}{1.5}\frac{cm^{2}}{radians}\\ \\x=9*1.5/2\\ \\x= 6.75\ cm^{2}

7 0
3 years ago
Can you help me please?
Alisiya [41]

Answer:

The correct answer is : C

Step-by-step explanation:

7 0
3 years ago
Does anyone know how to calculate the volume of a sphere
marshall27 [118]

Answer:

V=4 /3 times pie(3.14) times r^3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The painting shown at the right has an area of 220. What is the value of x?
tangare [24]

Answer:

9.76

Step-by-step explanation:

area of a rectangle = length * breadth

length = (2x + 3)

breadth = x

given area is 220 sq. inches.

thus,

220 = x * (2x+3)

220 = 2x² +3x

2x² + 3x -220 = 0

x = (-b + √ ( b²-4ac) ) ÷ 2a

x = ( -3 + √ ( 3² - 4*2*220) ) ÷ 2*2

x =9.76

5 0
2 years ago
If 5x + 2 = 7x - 7, then x =
Oduvanchick [21]

Answer:

if 5x + 2 = 7x - 7 then the answer is x = 9/2.

3 0
1 year ago
Read 2 more answers
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