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vesna_86 [32]
3 years ago
9

PLS HELP ME ASAP FOR 7, 8, 9. A and B!! (MUST SHOW WORK!!) + LOTS OF POINTS!!

Mathematics
1 answer:
Readme [11.4K]3 years ago
8 0
7. 3.14(12^2 - 10^2)=3.14(144-100) = 3.14(44)=138.16
8. A = piR^2 = 50.24.   R^2 = 50.24/3.14 = 16.   R = 4cm
9a) Perimeter of square is 4*18 = 72.  Perimeter of circle is 2*pi*r.  r=9in
perimeter of circle is then 2*3.14.9 = 56.52.  Difference is 72-56.52 = 15.48
9b) Area of square is 18^2 = 324.
Area of circle is 3.14(9^2) = 254.34.  Difference is the unshaded part
324-254.34 = 69.66in^2
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Prepare a perpetual inventory​ record, using the FIFO inventory costing​ method, and determine the​ company's cost of goods​ sol
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The First-In, First-Out inventory costing method assumes that the inventory items ordered first are the first sold. This is ideal for goods that are highly perishable, for example fresh milk. Since no figures or dates are given, we will assume that the month is March 2019 and use any figures to make the example.

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6 0
3 years ago
Help me with this pls
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b^-6

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3 0
3 years ago
Read 2 more answers
What is sin 0 when sec 0 = 5? 0 |(1,0) sin e = 2[?] [] Rationalize the denominator if necessary.​
Komok [63]

Answer:

Sin ~0 =\frac{2\sqrt{5} }{5}

Step-by-step explanation:

sec0=\sqrt{5}

cos~0=\frac{1}{sec0} =\frac{1}{\sqrt{5} }

sin ~0=\sqrt{1-cos^2~0}

=\sqrt{1-1/5}=\sqrt{5-1/5}

Sin~0=\sqrt{4/5} =2/\sqrt{5}*\sqrt{5}/\sqrt{5}

Sin~0=2\sqrt{5}/2=2\sqrt{5}/5

<u>--------------------------------</u>

hope it helps...

have a great day!!!

7 0
3 years ago
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