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goldfiish [28.3K]
3 years ago
12

What is the area of the shaded region?please help guys ​

Mathematics
1 answer:
olganol [36]3 years ago
4 0

Answer:

<em>Answer is</em><em> </em><em>330</em>

Step-by-step explanation:

area \: of \: shaded \: region = \pi \:  {r}^{2}  - \pi {x }^{2}  \\ here \: r = 11cm \: and \: x = 4cm \\  = \pi( {r}^{2}  -  {x}^{2} ) \\  = \pi( {11}^{2}  -  {4}^{2} ) \\  = \pi(121 - 16) \\  = \pi(105) \\  =  \frac{22}{7}  \times 105 \\  = 22 \times 15 \\  = 330 \:  {cm}^{2}  \\ therefore \: area \: of \: the \: shaded \: region \:  = 330 \:  {cm }^{2}

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

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On a cold day, the temperature in a certain city changed - 23.8°F
konstantin123 [22]

Answer:

-3.5°F

Step-by-step explanation:

-23.8°F/6.8(hrs)= -3.5°F

8 0
3 years ago
The polar form of this is?
prohojiy [21]

Answer:

2, 120 degrees

Step-by-step explanation:

The first step in finding the polar form is finding the modulus, r

r= sqrt( x^2 + y^2)

r = sqrt( (-1)^2 + sqrt(3)^2)

r = sqrt(1+3)

r= sqrt(4)

r =2


The next step is finding the angle

theta = arctan (y/x)

theta = arctan (sqrt(3)/-1))

theta = arctan (-sqrt(3))

theta = -60


The point (-1, sqrt(3)) is in the 2nd quadrant, but our angle is in the 4th quadrant, so we add 180 degrees

theta = -60 + 180 = 120

theta = 120 degrees

6 0
3 years ago
Here is some information about a holiday.
maksim [4K]

Answer:

$625.6

Step-by-step explanation:

Information about the holiday:

7 night holiday

$340 per person

8% discount if you book before 31 March

Number of people Naseem booked the holiday for = 2

Date of booking of the holiday = 15 February

Total cost of the holiday per person = cost per person - discount before March 31

= $340 - 8% of $340

= 340 - 8/100 * 340

= 340 - 0.08 * 340

= 340 - 27.2

= $312.8

Total cost of the holiday for 2 persons = 2 × Total cost of the holiday per person

= 2 * $312.8

= $625.6

8 0
3 years ago
Can someone help me with this question ​
OLga [1]

Answer:

I believe it is because it does not start at 0

3 0
3 years ago
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vfiekz [6]
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5 0
3 years ago
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