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2 years ago

Find the scale factor from DEF to ABC

Mathematics

1 answer:

Serjik [45]2 years ago

8 0

Answer:

³/2 (1.5)

Step-by-step explanation:

∆DEF was enlarged to get ∆ABC. The scale factor would be:

The ratio of any of the side length of ∆ABC to the corresponding side length of ∆DEF.

Thus,

BC:EF = 12:8

= 12/8

= 3/2 = 1.5

Scale factor from ∆DEF to ∆ABC is ³/2 or 1.5

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2 is common factor
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3 years ago

4. Find the total surface area.<br>5.1 in.<br>3 in.<br>8.3 in.

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Answer:

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5.1 in.

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3 years ago

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20000*0.45 = 9000 in the bond
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3 years ago

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A university hired you as a lab assistant after you graduated. Your starting salary is $41,500 and your salary will increase by

VladimirAG [237]

Answer:

$67,000

Step-by-step explanation:

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3 years ago

A bird has a mass of 26 g and perches in the middle of a stretched telephone line. (a) Show that the tension in the line can be

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Answer:

a) is demonstrated below, b) T=1.462N, c) T=14.6N

Step-by-step explanation:

a) Refer to the attached diagram.

Since the bird is standing in the middle of the line and each half is a straight line, Ta=Tb, so we will call the tension T=Ta=Tb and Tay=Tby

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Since the system is in equilibrium W=Tay+Tby then:

W=2·Tay=2·Ta·Sinθ=2·T·Sinθ

Since W=mg, being m the mass of the bird and g, gravity:

$mg=2TSin\theta$