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quester [9]
3 years ago
12

Find 4,5,6 Answer the rest for a thank you, and a brainliest.

Mathematics
2 answers:
zmey [24]3 years ago
4 0
Area of circle=\pi  r^{2}

Q4. Area of circle=\pi *12^{2}
                            =3.14*12^{2}
                            =452.16in^{2}   

Q5. Area of circle=\pi * ( \frac{6}{2} )^{2}
                            =3.14*3^{2}
                            =28.26in^{2}

Q6. Area of circle=\pi * (3 \frac{1}{2} )^{2}
                            =\frac{22}{7} * ( \frac{7}{2} )^{2}
                            =38.5in^{2}
Kay [80]3 years ago
4 0
4.  = 3.14 * 12^2 =  452.16
5. = 3.14 * 3^2 =  28.26
3. = 3.14 * 1.75^2 = 9.62
You might be interested in
-2x + 3y =-9<br> X+y = 2
geniusboy [140]

Answer:

The values of x and y to the given equation are x=3 and y=-1

The solution to the given equation is (3,-1)

Step-by-step explanation:

Given equations are -2x+3y=-9\hfill (1)

x+y=2\hfill (2)

To solve given equations by using elimination method :

Mutliply the equation (2) into 2 we get

2x+2y=4\hfill (3)

Now adding the equations (1) and (3)

-2x+3y=-9

2x+2y=4

_______________

5y=-5

y-\frac{5}{5}

Therefore y=-1

Now substitute the value of y=-1 in the equation (1) we get

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

-2x-3=-9

-2x=-9+3

=-\frac{-6}{-2}

Therefore x=3

The values of x and y to the given equation are x=3 and y=-1

The solution to the given equation is (3,-1)

8 0
2 years ago
Pls help and also no links plz​
Anettt [7]

Answer:

I think it's 5 or7

Step-by-step explanation:

hope it helps you

8 0
2 years ago
How do you find the rate of change
olga_2 [115]
If it's for a graph then I believe you just find the slope which you can do by taking two points and plugging them into this equation y-y
/
X-X

Example: (2, 4) and (6, 7) the first number is always x and the second is always y so if you plug those in the equation would look like this....

4-7
/
2-6

That would end up being
3
- ---- aka the rate of change
4


P.s. The slash and the four dotted lines together means division. Hope this helps
6 0
3 years ago
Please help:) thank you
Delvig [45]
The answer is slope
6 0
2 years ago
What is the area of the composite figure?
7nadin3 [17]
Divide the figure into 3 shapes
top square
middle trapezoid
bottom rectangle

so
Area of figure 
= (10x10) + 1/2(8 + 14)(4) + (20 x 6)
= 100 + 44 + 120
= 264

answer
264 cm^2
4 0
3 years ago
Read 2 more answers
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