Answer: 3x²−8x−3y
Step-by-step explanation: Combine Like Terms:
=7y+2x+−10y+3x2+−10x
=(3x2)+(2x+−10x)+(7y+−10y)
=3x2+−8x+−3y
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Frequency (f) in Hz = Wave speed (c) in m/s/Wavelength in m
Wave speed = 60 m/s, Wavelength = 1.2 m
Therefore,
f= 60/1.2 = 50 Hz
Answer:
-2x^3 - 3x^2 -8x + 4 should be added
Step-by-step explanation:
Here, we want to know what should be added to the expression to get 0
What we should do in this case is to simply negate the values we have in the expression already
Adding the negated values will give 0
So, we have that;
-2x^3 - 3x^2 -8x + 4
-50 and -18 multiplied together equal 900 and added together equal -68 because a - times a- equals a positive.
The area of the scale drawing given the scale of the square is 64cm^2.
<h3>What is the area of the scale drawing?</h3>
A scale drawing is a reduced form in terms of dimensions of an original image / building / object
Dimensions of the scale drawing = original dimensions / scale of the drawing
16 cm / 2 = 8cm
Area = 8 x 8 = 64cm^2
A square 16 cm on a side. Use this scale: Side of a square = 2 cm. Find the area of the scale drawing.
To learn more about scale drawings, please check: brainly.com/question/26388230
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