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IceJOKER [234]
3 years ago
11

The image shows a dust mite as seen under a microscope. The scale of the drawing to dust is 100:1

Mathematics
1 answer:
hoa [83]3 years ago
8 0

The actual length of the dust termite observed under the microscope is 1.5 mm

  • The scale of image produced under the microscope 100 : 1

  • This means image is magnified 100 times its original size as microscopes are used to enlarge or magnify the size objects.

  • Taking the measured size of the dust termite under the microscope in millimeter = 150 mm

The actual length of the termite will be :

  • Measured size under microscope ÷ 100

  • 150 mm ÷ 100

  • 1.5 mm

Therefore, the actual length of the dust termite is about 1.5 mm

Learn more :brainly.com/question/9572911

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Answer:

(–1, 1) and (–6, –1)

(1, 0) and (6, 2)

(3, 0) and (8, 2)

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Slope of line having points (x1, y1) and (x2,y2) is given by (y2-y1)/(x2-x1)

Two lines with slope m1 and m2 are parallel if there slopes are equal i.e m1 = m2.

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m = (2-4)/(-2-3) = -2/-5 = 2/5

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To find if other pair of lines lie on line parallel to  line  that contains (3, 4) and (–2, 2), we need to find slope for other pair of points , if those pairs have slopes as 2/5 then its clear that they lie on line parallel to  line  that contains (3, 4) and (–2, 2) else not.

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as  -2/5 is not equal to 2/5, the mentioned points do not  lie on line parallel to  line  that contains (3, 4) and (–2, 2).

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(–1, 1) and (–6, –1)

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(0, 0) and (2, 5)

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as   5/2 is not equal to 2/5, the mentioned points do not lie on line parallel to  line  that contains (3, 4) and (–2, 2).

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(1, 0) and (6, 2)

m4 = 2 -0)/6-1

m4 = 2/5

as  m4

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