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Oduvanchick [21]
4 years ago
6

9x^3 + 45x^2 - 4x -20 ; x+5 synthetic division

Mathematics
1 answer:
almond37 [142]4 years ago
3 0
                    9x² + 0x - 4
x + 5|9x³ + 45x² - 4x - 20
         <u>9x³ + 45x²               </u>
                           -4x - 20
                           <u>-4x - 20</u>
                                     0
The answer is equal to 9x² - 4.
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1. The information given in this problem, is:
 
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the base length of a particular triangle is 4 inches mote than its height. it the area of the triangle is 10.5 square inches, fi
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Answer:

<u>Height = 3 inches and Base length = 7 inches</u>

Step-by-step explanation:

1. Information provided to answer the question correctly:

Base of the triangle = x+ 4

Height of the triangle = x

Area of the triangle = 10.5 inches²

2. Find the base length and height

Let's recall the formula of the area of a triangle:

Area = (Base * Height)/2

Replacing with the values we know:

10.5 = x (x + 4)/2

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We take  x₂ as the answer because x₁ = -7 is not a valid height.

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