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Kaylis [27]
3 years ago
11

Hi everyone! I have a question!

Mathematics
2 answers:
ahrayia [7]3 years ago
7 0

Answer:

Step-by-step explanation:

area of unshaded circle:

A=π*r^2=π*1=π

we have 2 circles so the area of both circles are 2π

area of the large circle is A(l)=Π*3^2=Π*9=9Π

area of the shaded region: A(s)=9Π-2Π=7Π

Tju [1.3M]3 years ago
3 0

Answer:

7π

Step-by-step explanation:

SO first find the area of the whole circle

which has a radius of 3

a=πr^2

So 3^2=9

9π

Now the two circles which are the same in area due to having the same radius

so if you plug in the 1 for radius the answer would just be π or 1π

now multiply that by 2 becuase there are 2 identical circles

π*2=2π

Now subtract

9π-2π=7π

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Write an expression for the area of the shaded region in its simplest form. Show all of your steps.
patriot [66]
The area of the shaded region will be the area of the rectangle minus the area of the white square inside of it:

((x+10)(2x+5)) - ((x+1)(x+1))

First, FOIL both of the areas separately:

(2x^2 + 5x + 20x + 50) - (x^2 + x + x + 1)

Simplify within the parentheses by adding like terms:

(2x^2 + 25x + 50) - (x^2 + 2x + 1)

Now, subtract one equation from the other:

2x^2 + 25x + 50
-x^2  -    2x  -   1
= x^2 + 23x + 49

This will be the equation for the area.
3 0
3 years ago
HELP ME DO THIS PLZZZZ
andrezito [222]

Answer:

Step-by-step explanation:

y = -x^2+4x-6x +24

y = -x^2 -2x + 24

Vertex (x) = 2/-2 = -1

Vertex (y) =  -100/ -4 = 25

Vertex (-1, 25)

axis of symmetry: x= -1

-x^2 -2x + 24 = 0

Δ/4 = 1+24 = 25

x1 = (1 + 5)/-1 = -6

x2 = (1-5)/-1 = 4

left x intercept = (-6,0)

right x intercept = (4,0)

The DOMAIN is the set of all numbers

The range is y less than or equal to 25

4 0
2 years ago
A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1 kilogra
Stels [109]
The group lost 28/7 = 4 kilograms of weight each day.

1 kilogram = 2.2 pounds
4 kilograms = 2.2 x 4 = 8.8 pounds
3 0
3 years ago
What is the value of the expression when a = 6, b = 4,and c = 8?
Julli [10]
The answer is: [B]: 3.
______________________________________________
Let us assume that the problem is meant to be written as:
_______________________________________________
  2a / (3b - c) ;

Explanation:
___________________
we are given the values for "a", "b", "c" ; and we are asked to solve the problem when the given values: 
      a = 6, b = 4; and c = 8 .
________________________
Note:
________________________
We have a "numerator" , " 2a " ; and a "denominator" , (3b - c).
_______________________
Let us start by finding the numerator: 
_________________________________
Numerator: 2a = 2*a = 2 * 6 = 12.
_______________________________________
Denominator: 3b - c  = (3*4) - 8 = 12 - 8 = 4
_______________________________________
To solve: Numerator ÷ Denominator = 12 <span>÷ 4 = 3.
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The answer is: [B]: 3.
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6 0
2 years ago
Pick the correct graph and equation pleasee!
laila [671]

Given:

Amount of flour in a bin = 30 cups

Flour required for each signature cake = 1\dfrac{1}{2} cups

To find:

The correct equation and graph for the given situation.

Solution:

Let F be the amount of flour in the bin and c be the number of signature cakes.

Flour required for each signature cake = 1\dfrac{1}{2} cups

Flour required for each signature cake = 1.5 cups

Flour required for c signature cakes = 1.5c cups

Amount of flour in a bin is 30 cups and it is reduced by 1.5c cups. So, the amount of flour in the bin is:

F=30-1.5c

At c=0, we get

F=30-1.5(0)

F=30

At F=0, we get

0=30-1.5c

1.5c=30

c=\dfrac{30}{1.5}

c=20

Therefore, the required equation is F=30-1.5c and the 4th graph is correct.

5 0
3 years ago
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