Adisplay for rolls of tape indicates that each roll contains 150 yards of tape. if the actual length of tape can vary by 2.5% of that amount, what is the range for the length of the tape on a roll

  [146.25, 153.75] yards

Step-by-step explanation:

2.5% of 150 yards is ...

  0.025 × 150 yd = 3.75 yd

This amount can be added or subtracted from the nominal length, so the range of lengths is ...

  from 150 yd -3.75 yd = 146.25 yd

  to 150 yd +3.75 yd = 153.75 yd

answer;

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,