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Gala2k [10]
2 years ago
10

PLEASE HELP ME I DONT GET THIS..​

Mathematics
2 answers:
S_A_V [24]2 years ago
5 0
  1. Hi so it's ask for area of circle an you know that formula for area of circle is πr2 r (radius)
  2. What is π? We have two formula π which is 22/7 or 3.142.So for this question i will use 22/7.
  3. If you look at question 2,4 and 6 you can see the diameter which line straight to the circumference. That's call diameter. But in the formula it want r which mean radius. So the diameter÷2

Hopes this help

KIM [24]2 years ago
3 0
I’m also doing my homework but just search how to solve for an area of a circle :) I’m 100% sure it will help
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1/2 times ? Equals 3 1/2
stepan [7]

Answer:

7

Step-by-step explanation:

1/2(x)=7/2

divide both sides by 1/2

x=\frac{7}{2}÷\frac{1}{2}

x=\frac{7}{2}·\frac{2}{1}

x=14/2=7

4 0
2 years ago
(2y + 9)(3y - 1) = 5y2 + 25y - 9
Vikki [24]

Answer:

y1= 0, y2= 5/3

Step-by-step explanation:

Remove the parentheses and multiply

then cancel the equal terms

collect the lie terms

move the variables to one side

divide both sides by two

split into possible cases

then solve the equation to get

y= 0 and

y= 5/3

7 0
2 years ago
Jason bought a car for $12500. According to the insurance company, the value of the car depreciates by 7% each year. What will t
Orlov [11]

Answer:

8696.10

Step-by-step explanation:

If a car depreciates by 7% each year, this means that 7% of its value that year is subtracted from its previous value. In other words, you can multiply its value by (1-0.07)=0.93.

12500\cdot 0.93^5\approx 8696.10. Hope this helps!

3 0
3 years ago
From the 12 players who will travel, the coach must select her starting line-up. She will select a player for each of the five p
gizmo_the_mogwai [7]

Answer:

990

Step-by-step explanation:

The center position can be selected in 3 different ways, the other 4 players can be selected in combinations of 11 players (the center is already selected) taken 4 at a time.

By the Fundamental Principle of Counting, there are

3\displaystyle\binom{11}{4}=3*\displaystyle\frac{11!}{4!(11-4)!}=3*\displaystyle\frac{11!}{4!7!}=990

ways for her to select the starting line-up.

7 0
3 years ago
Sort the following numbers from least to greatest.<br> 18.5635, 18 13/16, 18.3125
Vikki [24]

Answer:

18.3125

18.5635

18 13/16

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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