Answer:
55x^4+25x^3+35x^2
Step-by-step explanation:
5x²(4x^2+8x-1 and 7x^2-3x+8)
Applying distribution property,we have
- 5x^2(4x^2+8x-1 + 7x^2-3x+8)
- (5x^2)*(4x^2)+(5x^2)*(8x)+(5x^2)*(-1)+(5x^2)(7x^2)+(5x^2)*(-3x)+(5x^2)*(8)
Simplifying them,we have
- 20x^4+40x^3−5x^2+35x4−15x^3+40x^2
- 55x^4+25x^3+35x^2
Answer:
-3
Step-by-step explanation:
Slope = raise/run
Raise = -3
Run = 1
Slope = -3/1
Answer:
its 64
Step-by-step explanation:
110 grams but it depends on the size
The rate at which the sound travels in km/hr is 0.142km/hr
<h3>Conversion of m/s to km/hr</h3>
If a sound wave travels with a speed of 5120m/s, in order to convert to km/he, we will use the conversion factor below;
1hr = 3600secs
1km = 1000m
Using the conversion factor in our dimensional analysis
5120m/s = 5120m/1s * 1km/1000m * 3600s/1hr
5120m/s = 5120m/3600000
5120m/s = 0.142km/hr
Hence the rate at which the sound travels in km/hr is 0.142km/hr
learn more on dimensional analysis here: brainly.com/question/21510595
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