The length of the wing of an insect in a picture is 4 cm. The scale of the picture is 20:1. What is the real length of the insect’s wing?

Answers

Answer 1

Answer: If you would like to know the real length of the insect's wing, you can calculate this using the following steps:

1/20 of 4 cm = 1/20 * 4 = 4/20 = 1/5 cm = 0.2 cm

The correct result would be 0.2 cm.

Answer 2

Answer: 0.2cm
Working;
Since the picture is a magnification of the insect, the real insect is smaller than the picture

If 20cm on the picture is equivalent to 1 cm of the real insect, then;
$(4*1)/(20) =0.2cm$

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I need help ASAP pleaseWhat is the value of x?

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A triangle with base on an extended line. Two angle measures are given. Top interior angle is twenty-eight degrees. Lower left exterior angle is seventy-one degrees. Lower right interior angle is labeled x degrees.

Answers

The correct answer for the question that is being presented above is this one: "The lower right interior angle is 43°"

Interior angle of a triangle and its corresponding exterior angle must have a sum of 180° when its line is extended.

Top interior angle is 28°
Lower left exterior angle is 71°
Lower right interior angle is x°

Get the left interior angle.
Exterior angle + Interior angle = 180°
71° + Interior angle = 180°
Interior Angle = 180° - 71°
Interior Angle = 109°

Top Interior angle + Left Interior Angle + Right Interior angle = 180°
28° + 109° + x° = 180°
x = 180° - 28° - 109°
x = 180° - 137°
x = 43°

The lower right interior angle is 43°

Solve for x
log(x–4)+log(x+3)=2logx

Answers

$D:x-4>0 \wedge x+3>0 \wedge x>0\nD:x>4 \wedge x>-3 \wedge x>0\nD:x>4\n\n\log(x-4)+\log(x+3)=2\log x\n\log(x-4)(x+3)=\log x^2\n(x-4)(x+3)=x^2\nx^2+3x-4x-12=x^2\n-x=12\nx=-12\n-12\not\in D\n\Downarrow\n\boxed{x\in\emptyset}$

Whats 9+9-289*19/-90pi*3?

Answers

= 9 + 9 − (289)(19)/(-90)(3.14)(3)
multiply 289*19

= 9 + 9 - 5491/-90(3.14)(3)
add 9 + 9; divide -5491/-90; negative divided by negative is positive

= 18 + (61.0111111111)(3.14)(3)
multiply 61.0111111111*3.14

= 18 + (191.5748888889)(3)
multiply 191.5748888889*3

= 18 + 574.7246666667

= 592.7246666667

ANSWER: 592.7246666667 (round to decimal place required by teacher)

Hope this helps! :)

The picture is above I’ll mark as brainliest.