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valkas [14]
3 years ago
6

A circle has a radius of 9 ft.

Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0
Your answer is 56.52 
Aleonysh [2.5K]3 years ago
6 0
Double your radius and multiply it by 3.14
2*9=18
18*3.14 =56.52
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Simplify the expression <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-5%2Bi%7D%7B2i%7D" id="TexFormula1" title="\frac{-5+i}{2i}"
Fudgin [204]

Answer:

1/2 + 5/2 i

Step-by-step explanation:

(-5+i)         i

---------* --------

2i             i

cannot have i in the denominator so we multiply by i

(-5+i)         i             -5i + i^2

---------* --------  = ----------------

2i             i              +2i^2

remember i^2 = -1

     -5i + -1        -1 -5i

= ---------------- = ------------------

    +2(-1)                        -2

get rid of the negative in the denominator by multiplying the top and bottom by -1

    (-1 -5i) * -1

= ------------------

          -2*(-1)


    (1 +5i)

= ------------------   =   1/2 + 5/2 i

          2

6 0
3 years ago
A one day visit to Dollywood in Tennessee’s Smoky Mountains cost $56 for an adult and $45 for a child. Find the cost admission f
Maksim231197 [3]

Answer:

$56×2=$112 and $45×4=$180 so $112+$180= $291

3 0
2 years ago
Pls help being timed
Klio2033 [76]

The answer is A( +7) x (-5)

3 0
3 years ago
Read 2 more answers
Review the graph.
valkas [14]

Answer:

second option

Step-by-step explanation:

shaded~area\\(x-1)^2+y^2

4 0
2 years ago
Read 2 more answers
What is 2/3 of $300?
wel
Well one third is 100
 so two thirds must be 200
3 0
3 years ago
Read 2 more answers
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