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Vitek1552 [10]
2 years ago
10

Find the area of this circle

Mathematics
2 answers:
Black_prince [1.1K]2 years ago
6 0

Answer:

12.56

Step-by-step explanation:

How I remember the area formula of a circle is with the word PIZZA. Pizza are you know is a circle and I break down the word. PI= 3.14, ZZ= Z² (but in books and class they will use r², I'm replacing that r with a z), A= area.

Using my formula

PIZZA

Pi=3.14

ZZ= 2²=4

A= area

3.14*4=area

12.56=area

anygoal [31]2 years ago
5 0
Area of a circle is pie times the radius to the second power.

So the answer is 4 time pie
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Ashley is diving in the ocean. She wants to reach a coral reef that is 60 feet below sea level; that is, the reef’s elevation is
Pavlova-9 [17]

Answer:

I am not positive that this is correct

Step-by-step explanation:

So if she want to reach a reef that has a elevation of -60 and she descends at a rate of 10 feet my guess the rational number that would represent this problem would be

-60/10

3 0
3 years ago
Last month, he sold 50 chickens and 30 ducks for $550. This month, he sold 44 chickens and 36 ducks for
STALIN [3.7K]
Answer: chicken $8, duck $5

Explanation:

x - the cost of a chicken
y - the cost of a duck

he sold 50 chickens and 30 ducks for $550: 50x + 30y = 550
he sold 44 chickens and 36 ducks for $532: 44x + 36y = 532

50x + 30y = 550                divide by 10
44x + 36y = 550                 divide by 4
______________
50x/10 + 30y/10 = 550/10
44x/4 + 36y/4 = 532/4
______________
5x + 3y = 55                                    
Multiply by (-3)
11x + 9y = 133
______________
5x * (-3) + 3y * (-3) = 55 * (-3)
11x + 9y = 133
______________
-15x - 9y = -165
11x + 9y = 133
______________
Sum up:
-4x + 0y = -32
-4x = -32
x = -32/-4
x = 8

Since 5x + 3y = 55  and x = 8, then:
5 * 8 + 3y = 55
40 + 3y = 55
3y = 55 - 40
3y = 15
y = 15/3
y = 5
6 0
3 years ago
Read 2 more answers
Sorry i didnt mean to post anything
Dmitry [639]
Hi you seem nice I like hot cocoa and I’m a littleAnd 1+1 is two and 3+3 is six and 9+9 is 18
4 0
2 years ago
9(a + 2b) + c for a = -3, b = -2, and c = 1.
Snowcat [4.5K]

Answer: -62

Step-by-step explanation:

9( a + 2b) + c

Substitute correct values for all a, b and c.

9( -3 + 2(-2) ) + 1

9( -3 - 4 ) + 1

9(-7) + 1

-63 + 1

-62.  

6 0
3 years ago
Read 2 more answers
There are 2 grams of fat in 1 pound of chicken. there are 9 grams of fat in 4.5 pounds of chicken. How many grams of fat would b
kramer

Answer:

There will be 20 grams of fat in 10 pounds of chicken.

Step-by-step explanation:

Based of the pattern you can tell that the Grams of fat will always be double the amount of pounds.

2 grams of fat in 1 pound

9 grams in 4.5 pounds

So:

10 * 2 = Grams of fat

10 * 2 = 20 Grams of fat.

So there will be 20 grams of fat in 10 pounds of chicken.

5 0
3 years ago
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