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Anni [7]
3 years ago
8

Hope do I do number 7 and 10

Mathematics
1 answer:
insens350 [35]3 years ago
5 0
Okkkkkkkkkkkkkkkkkkkk
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8.-10 + 0.22 can someone help me again​
grigory [225]

Answer:

8.10+0.22

Is 8.33

Step-by-step explanation:

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Question 7
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Step-by-step explanation:

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20 POINTS HELP PLEASE AND BRAINLESS What is the approximate area of the following circle? 3.5m
KatRina [158]

Answer: C. 38.47 m2

Step-by-step explanation:

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3 years ago
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Please help!
erik [133]
For the answer to the question above, 
1 + nx + [n(n-1)/(2-factorial)](x)^2 + [n(n-1)(n-2)/3-factorial] (x)^3 

<span>1 + nx + [n(n-1)/(2 x 1)](x)^2 + [n(n-1)(n-2)/3 x 2 x 1] (x)^3 </span>

<span>1 + nx + [n(n-1)/2](x)^2 + [n(n-1)(n-2)/6] (x)^3 </span>

<span>1 + 9x + 36x^2 + 84x^3 </span>

<span>In my experience, up to the x^3 is often adequate to approximate a route. </span>

<span>(1+x) = 0.98 </span>

<span>x = 0.98 - 1 = -0.02 </span>

<span>Substituting: </span>

<span>1 + 9(-0.02) + 36(-0.02)^2 + 84(-0.02)^3 </span>

<span>approximation = 0.834 </span>

<span>Checking the real value in your calculator: </span>

<span>(0.98)^9 = 0.834 </span>

<span>So you have approximated correctly. </span>

<span>If you want to know how accurate your approximation is, write out the result of each in full: </span>

<span>1 + 9(-0.02) + 36(-0.02)^2 + 84(-0.02)^3 = 0.833728 </span>

<span> (0.98)^9 = 0.8337477621 </span>

<span>So it is correct to 4</span>
5 0
3 years ago
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Cos60° = x divided by 16
777dan777 [17]
  • Answer:

<em>x = 8</em>

  • Step-by-step explanation:

<em>cos60° = x/16</em>

<em>1/2 = x/16</em>

<em>2x = 16</em>

<em>x = 16 : 2</em>

<em>x = 8</em>

6 0
3 years ago
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