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Firlakuza [10]
3 years ago
8

Help- Substitute the values for the area formula

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0

Answer:

pie is known as 3.14  the radius is 19 the r^2 is 361

Step-by-step explanation:

pie is mathmatticly know as just 3.14 the radius is half the diameter and r^2 multiplys the radius by itself like 19 times 19

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A student has 10 coins in her pocket that have a value of $0.85. The coins are either
il63 [147K]

Answer:

\left\{\begin{matrix}x+y=10\\ 0.05x+0.10y=0.85\end{matrix}\right.

Step-by-step explanation:

<u>System of Equations</u>

Let's call:

x = number of nickels in the student's pocket

y = number of dimes in the student's pocket

Each nickel has a value of $0.05, so x nickels have a value of 0.05x

Each dime has a value of $0.10, so y dimes have a value of 0.10y

The student has a total of 10 coins, thus:

x+y=10

The total value of the coins is $0.85, thus

0.05x+0.10y=0.85

The system of linear equations that represents this scenario is:

\left\{\begin{matrix}x+y=10\\ 0.05x+0.10y=0.85\end{matrix}\right.

5 0
3 years ago
Keisha has one penny, one nickel, and one dime in her pocket. She randomly takes on coin out of her pocket. Without putting it b
andrezito [222]
There are 12 different ways she could take a penny, a nickle, and a dime out of here pocket and only pick 2. What i did was i took 2 and 3 and multiplied them. because i can pick 2 coins, and there are 3 coins in total. After i multiplied them i got 6, then i got 2 and multiplied it by 6 and came out with 12. The reason why i did that is because there are 6 outcomes so far then you have to multiply them by 2 to get all of your complete outcomes. I hope i could help!!! Please give me brainliest!!! Have a great day =D!!!
3 0
4 years ago
Mathematics need help hurry and wander this question ** picture involved**
ser-zykov [4K]

Answer:

radius = 15ft

diameter = 30ft

Step-by-step explanation:

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Answer:

$700 for 35 people but if you want to add the fee it will be $850

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3 years ago
Find the total surface area of the prism.
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20 in I’m for sure on this answer
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3 years ago
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