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kolbaska11 [484]
3 years ago
14

What is the area of a semi circle w pi being 3.142 and a diameter of 19cm

Mathematics
2 answers:
Hunter-Best [27]3 years ago
4 0

Answer:

Step-by-step explanation:

Area of circle is A= pi *r ^2=283.38

while area of semi cirlce is half of total 283.385/2= 141.69

Yuri [45]3 years ago
3 0

Answer:

Step-by-step explanation:

Area of semi circle is =pie × r^2 /2

And d=2r or r =d/2

So r =19/2

Thus area of semi circle is = 3.142×19×19/2×2×2 = =141.78 sq.cm

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Margaret [11]

Answer:

Ok that's not it

x=-1 then y=4

x=0 then y= 6

x=1 then y = 8

x=2 then y= 10

x=3 then y= 12

Step-by-step explanation:

when y=2x+6

you have to plug what it says x is in each of the equations.

For the first one it says x=-1

you then plug that in and you get y=2(-1)+6

then you go through PEMDAS and first you get y=-2+6

-2+6 = 4

therefore y=4

and you just go through the rest wiht that

Step-by-step explanation:

6 0
2 years ago
Please I need a quick reply​
Rom4ik [11]

Answer:

B

Step-by-step explanation:

It sounds most likely to the right answer

¯\_(ツ)_/¯

4 0
3 years ago
Read 2 more answers
4.05 LC)
Goshia [24]

Answer:

r

Step-by-step explanation:

we know this because it is the only part of the graph that is moving downwards, meaning its decreasing. P is an example of increasing, Q is 'neutral' and s is also increasing.

5 0
3 years ago
HELLPPPPPPPPP WITH THE TOP THREE PLS
rodikova [14]

Answer:

9) Domain: 0≤x≤6

Range: -3≤y≤3

10) Domain: -∞≤x≤∞

Range: -∞≤y≤∞

11) Domain: -∞≤x≤∞

Range: y≥-2

13) Domain: -∞≤x≤∞

Range: -2≤y≤4

Step-by-step explanation:

9) Domain: 0≤x≤6

Range: -3≤y≤3

10) Domain: -∞<x<∞

Range: -∞<y<∞

11) Domain: -∞<x<∞

Range: y≥-2

13) I think you need to look at this one again.  It looks like:

Domain: -∞<x<∞

Range: -2≤y≤4

4 0
4 years ago
Factors of 9 simple question ​
dolphi86 [110]

the factors are 1, 3, 9 i hope it helps :)

Step-by-step explanation:

bc i saidsoooo:)

6 0
3 years ago
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