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aleksandrvk [35]
3 years ago
7

Find the area of the circle that contains the sector described below. Round to the nearest tenth, if necessary.

Mathematics
1 answer:
Elis [28]3 years ago
6 0

Answer:

The area of the circle is 2520 cm²

Step-by-step explanation:

The area of an arc is given by the following formula:

arc area = pi*r²(angle/360)

In this case we have the area and the angle and we want to find r, so we have:

210 = pi*r²*(30/360)

210 = pi*r²*(1/12)

210*12 = pi*r²

pi*r² = 210*12

r² = 2520/pi

r = sqrt(2520/pi)

r = 28.3221

The area of the circle that has this arc is given by:

area = pi*r²

area = pi*(28.3221)² = 2520 cm²

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Quadric formula to solve 9x^2+6x-17=0
raketka [301]

Answer:

1+3√2 /3. C.X=3+√14 /10.10

Step-by-step explanation:

8 0
3 years ago
Phildell Phoenix is paid monthly. For the month of January of the current year, he earned a total of $8,288. The FICA tax for so
Yuliya22 [10]

Answer:

The net pay = 6278.79 dollars

Step-by-step explanation:

Net pay = gross pay - (federal income tax + FICA-Social Security tax + FICA-Medicare Tax).

gross pay = 8288 dollars

While

FICA social security tax:

6.2% of $8288

8,288 × 6.2/100 = 513.86.

FICA-Medicare tax: 1.45% of $8288

8,288 ×1.45/100 = 120.18

The net pay = 8,288 - (1,375.17 + 513.86 + 120.18).

= 8288 - 2009.21

The net pay = 6,278.79 dollars

4 0
3 years ago
11. Clare is painting some doors that are all the same size. She used 3 liters of paint to cover 1 4/5 doors. How many liters of
netineya [11]

The paint required to cover 1 door is 5/4 liters.

Step-by-step explanation:

The paint required to cover 1 3/5 doors = 2 liters.

Convert mixed fraction into proper fraction.

Therefore, the paint required to cover 8/5 doors = 2 liters.

The paint required to cover 1 door = x liters.

To find x :

Comparing the given data and the unknown data.

8/5 door / 2 liters = 1 door / x liter

x = 2 × 5/8

x = 10/8

x = 5/4 liters.

The paint required to cover 1 door is 5/4 liters.

8 0
3 years ago
I GIVES BRAINLIEST TO PEOPLES WHO ANSWERS
artcher [175]

Answer:

Xavier jumped .25m more than Brandon

Step-by-step explanation:

6.1 - 5.85 = 0.25

Xavier jumped .25m more than Brandon

<em><u>Plz mark as brainliest if correct! Have a nice day!!!</u></em>

<em><u>-Lil G</u></em>

5 0
3 years ago
y= -16t^2 +400, where t represents the number after the camera is dropped. How long will it take before Kay sees the splash from
Sholpan [36]
Your problem statement needs a bit of correction:

"<span>Y= -16t^2 +400, where t represents the number OF SECONDS after the camera is dropped. How long will it BE before Kay sees the splash from the camera hitting the water?"

Set y = -16t^2 + 400 = 0.  We assume that 400 and 0 represent feet (English system).

Then 16t^2 = 400, and so 25 = t^2.  Only the positive square root makes sense here, and that root is 5 (seconds).</span>
3 0
4 years ago
Read 2 more answers
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