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Alla [95]
4 years ago
12

Expand and simplify (× + 1)(×^2 + 2× +3)

Mathematics
1 answer:
Harman [31]4 years ago
7 0
(x + 1)(x^2 + 2x + 3)
Expand:
x(x^2 + 2x + 3) + 1(x^2 + 2x +3)
Multiply out the brackets:
x^3 + 3x + 3x + x^2 + 2x + 3
Simplify:
x^3 + x^2 + 8x + 3
Hope this helped :)
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Find θ in degrees, minutes and second, given: sin θ = 0.9205
Jobisdone [24]

Answer:

  66°59'57.4379"

Step-by-step explanation:

A suitable calculator can find the angle whose sine is 0.9205 and convert that angle to degrees, minutes, and seconds

  θ = arcsin(0.9205) ≈ 66.999288° ≈ 66°59'57.4379"

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Multiplying the fractional part of the degree measure by 60 minutes per degree gives the minutes measure:

  0.999288° ≈ 59.95730'

And multiplying the fractional part of that by 60 seconds per minute gives the seconds measure:

  0.95730' = 57.4379"

In total, we have 66°59'57.4379"

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4 years ago
A car uses 30 gallons of gasoline for a trip of 800 miles. How many gallons would
atroni [7]

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Quantity of gasoline needed by a car to run 1 mile =

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6 0
4 years ago
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The left and right page numbers of an open book are two consecutive integers whose sum is 389.  Find these page numbers
Nadya [2.5K]

Step-by-step explanation:

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4 years ago
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Solve:<br><br><img src="https://tex.z-dn.net/?f=%5Cunderset%7Bx%5Crightarrow~3%7D%7B%5Clim%7D~%5Cdfrac%7B2x%5E2-18%7D%7Bx%5E2-3x
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8 0
3 years ago
Tell whether this equation has no solution, one solution, or infinitely
natali 33 [55]

Answer:

infinitely many solutions

Step-by-step explanation:

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