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Kryger [21]
3 years ago
15

What is the area of a shaded sector if the diameter is 20

Mathematics
1 answer:
oee [108]3 years ago
6 0
So.. hmm notice the picture below... if the diameter is 20, the radius is half that

thus \bf \textit{area of a circle's sector}\\\\
A=\cfrac{\theta\pi r^2}{360}\qquad 
\begin{cases}
r=radius\\
\theta=\textit{angle in degrees}
\end{cases}

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Need help with this math problem asap!!<br>marking brainliest and giving points ​
zaharov [31]

Answer:

Solution given:

y=2x-5......1.

y=-3x+10.....2.

equating equation 1 &2

2x-5=-3x+10

2x+3x=10+5

x=15/5

x=3

again

y=2×3-5=1

so

<em><u>x,y=3,1 is your answer.</u></em>

3 0
3 years ago
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Danny charges $20 for 2 hours of swimming lessons, Martin charges $68 for 4 hours of swimming lessons. Who offers a better deal
salantis [7]

Answer:

Danny

Step-by-step explanation:

Its quite obvious really.

Multiply Danny's charges by 2

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If you wanna go further,

Minus Martins charges with Dannys

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Jose's school spent $1284 on 9 sticksof memory and a new hard drive. The hard drive cost $168. Which is the reasonable estimate
myrzilka [38]
Subtract the cost of the hard drive from the original $1284 and divide the answer you got by the 9 sticks of memory for your answer.
4 0
4 years ago
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Brittany bought 3 bracelets and 2 necklaces for $21. Each bracelet cost $5. The necklaces were all the same price. What is the c
Kipish [7]

Answer:

The cost for 1 necklace is $3.

Step-by-step explanation:

With the information provided, you can say that the amount spent in bracelets and necklaces is equal to the price per bracelet for the number of bracelets plus the price per necklace for the number of necklaces, which is:

c=3x+2y, where:

c is the total cost

x is the price per bracelet

y is the price per necklace

Now, you can say that c=21 and x=5 and solve for y to find the price per necklace:

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6=2y

y=6/2

y=3

According to this, the answer is that the cost for 1 necklace is $3.

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3 years ago
Mr. Tang created a number line for his class to use.
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Answer:

Point D

Step-by-step explanation:

I hope this helps

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