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Pani-rosa [81]
3 years ago
10

A scale has a percent error of 7%. The scale reads the mass of a book as 450 g.

Mathematics
2 answers:
Hatshy [7]3 years ago
7 0
500 grams I think it probably will be wrong but worth a try
ipn [44]3 years ago
5 0

Answer: it's actually 419 g or 482 g is correct because I took the test and all of the answers other than this one is wrong.


Step-by-step explanation:


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olya-2409 [2.1K]
First we use sin(a+b)= sinacosb+sinbcosa
and cos(a+b)=cosa cosb -sinasinb

tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)
and sin(x+pi/2) = sinxcospi/2 + sinpi/2cosx =cosx, 
<span>cos(x+pi/2) = cosxcospi/2- sinxsinpi/2= - sinx, 
</span> because <span>cospi/2 =0,  </span>and <span>sinpi/2=1

</span><span>=tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)= cosx / -sinx = -1/tanx = -cotx
</span>from where <span>tan(x+pi/2)=-cotx</span> 
5 0
3 years ago
HELP PLEASE ILL GIVE BRAINLIST 8th grade ALGEBRA I INSERTED A PHOTO
Alex73 [517]

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No

Step-by-step explanation:

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6 0
2 years ago
If m L=65, then m LJK=___ ????? PLS HELP ASAP
aleksandr82 [10.1K]

Answer:

50 degrees

Step-by-step explanation:

If angle L = 65 then the top angle for the triangle LMJ has to be 25 degrees as M is a right angle (or at least has to be for this problem to be possible)

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4 0
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Sergio [31]

Answer:

Step-by-step explanation:

Answer

When you translate either left or right, the x coordinate is the one that you change. To go right when you are dealing with a point, you must add the amount you are asked to go right.  So when you go right 3 units, add 3 to the 5.

(5 + 3,1) = (8,1)

when going across the y axis, you are still only changing the x coordinate.

All you need do is put a minus sign in front of the  x coordinate. So your final answer is (-8,1)

5 0
1 year ago
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lapo4ka [179]

Answer:

73.68%

Step-by-step explanation:

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4 0
3 years ago
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