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mart [117]
4 years ago
13

100 people were asked to estimate the length of one minute. their estimates were normaly distributed with a mean time of 60 seco

nds and a standard deviation of 4 seconds
Mathematics
1 answer:
Alika [10]4 years ago
6 0

Im super sorry my hand slipped dont quit

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5. (09.06 MC)
polet [3.4K]

Answer:

12.566

Step-by-step explanation:

A = ∫1/2(r)^2dtheta from a - b = 0 to 2π

∫1/2(sin^2theta-4sintheta+4)dtheta

[9/4theta+2costheta-1/8sin2theta] from 0 to 2π…

when you solve this you get 14.137 without taking out the cos(2theta+3)

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2 years ago
A2 - 2ab a2 - 4b2
gavmur [86]
(a + 2b) • (a2 - 2ab - 4b2)
6 0
4 years ago
Find the slope of the line: (4, 4), (5, 3)
fredd [130]

Answer:

-1

Step-by-step explanation:

we would use the slope formula which is y2-y2/x2-x1

so 3-4/5-4= -1

8 0
3 years ago
Solve for x. Please look at the picture and answer it. Thank you.
Tatiana [17]
<h3>Answer :- </h3>

  • x = 24

<h3>Solution :- </h3>

  • 2x + 42 = 90
  • 2x = 90 - 42
  • 2x = 48
  • x = 48/2
  • x = 24

<em>Hope</em><em> it</em><em> helps</em><em> </em><em>~</em>

7 0
2 years ago
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