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Allushta [10]
4 years ago
14

What is the area of the sector shown

Mathematics
1 answer:
EastWind [94]4 years ago
5 0

Answer:

D.~ 34.2~cm^2

Step-by-step explanation:

An arc measure of 20 degrees corresponds to a central angle of 20 degrees.

Area of sector of circle

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

where n = central angle of circle, and r = radius

area = \dfrac{20^\circ}{360^\circ}\pi (14~cm)^2

area = \dfrac{1}{18}(3.14159)(196~cm^2)

area = 34.2~cm^2

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What is {2745 x 4799}
blagie [28]

Answer:

13,173,255

Step-by-step explanation:

my birthday's tomorrow

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3 years ago
Solve the system of equations -12x-5y=40 12x-11y=80
Gwar [14]

Answer:

The answer is (-5/24, -7.5).

Step-by-step explanation:

There are two methods to solving a system of equations - substitution or elimination.  In this example, we can use elimination since the coefficients of 'x' are opposite signs.  To complete elmination, we simply add the equations together:

-12x - 5y = 40

<u>+ 12x - 11y = 80</u>

-16y = 120

Use inverse operations to solve for 'y' by dividing both sides by -16 to get       y = -7.5.

Next, plug in the value of 'y' into one of the equations and solve for 'x':

-12x  - (5)(-7.5) = 40 or  -12x + 37.5 = 40, now subtract 37.5 from both sides:  -12x + 37.5 - 37.5 = 40 - 37.5 or -12x = 5/2.  Lastly, divide both sides by -12 to solve for x, x = -5/24.  

4 0
3 years ago
Tanisha and Rebecca are signing up for a new cell phone plan to only charge for the number of minutes and everything else includ
xeze [42]

Answer:

see the explanation in the procedure

Step-by-step explanation:

<u><em>The complete question is</em></u>

Tanisha and Rebecca are signing up for the new cellphone plans that only charge for the number of minutes and everything else is included in a monthly fee. Their plans are as follows:

Tanisha s Plan: $0.15 per minute used talking and a $25 monthly fee

Rebecca s Plan: $0.10 per minute used talking and a $18.50 monthly fee

After how many minutes will the two plans charge the same amount?

Let

x ----> the number of minutes

y ---> the total charge in dollars

we know that

<em>Tanisha s Plan</em>

y=0.15x+25 -----> equation A

<em> Rebecca s Plan</em>

y=0.10x+18.50 -----> equation B

To find out after how many minutes will the two plans charge the same amount, equate equation A and equation B

0.15x+25=0.10x+18.50

solve for x

0.15x-0.10x=18.50-25

0.05x=-6.5

x=-130\ min

therefore

They will never pay the same amount , because the time cannot be a negative number.

Rebecca s Plan is better than Tanisha s Plan because it has smaller fee and less cost per minute

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3 years ago
Is the Brainly.it a fake website??
Allushta [10]

Answer:

nah

Step-by-step explanation:

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A farm produces an average of 17.1 liters of milk per day. About how many days will it take to produce 200 liters of milk?
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