Question

1. seth is 205 cm tall. he gets his self - portrait drawn using a scale factor of \\(\frac{3}{20}\\). how tall is he in the self - portrait? 7. leo has a microscope with a lens that magnifies by a factor of 80. he was able to capture the image of a slide containing human skin cells. in the image, the cell was about 5.6 mm long. determine the length of the actual human skin cell, to the nearest hundredth of a millimetre.

Explanation:

Step1: Calculate portrait height (Q6)

Multiply actual height by scale factor.
$205 \times \frac{3}{20} = 30.75$

Step2: Calculate actual cell length (Q7)

Divide image length by magnification.
$\frac{5.6}{80} = 0.07$

Answer:

1. 30.75 cm
2. 0.07 millimetres