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chubhunter [2.5K]
3 years ago
11

X^3 + 4x^2 + 5x +20 factor by grouping

Mathematics
1 answer:
mixas84 [53]3 years ago
5 0

Step-by-step explanation:

x³ + 4x² + 5x + 20

x² (x + 4) + 5 (x + 4)

(x² + 5) (x + 4)

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For which interval does this quadratic inequality hold true?
adoni [48]

Answer:

D

Step-by-step explanation:

x²-4x-12≤0

x²-6x+2x-12≤0

x(x-6)+2(x-6)≤0

(x-6)(x+2)≤0

x=6,-2

∴ value of x lies between -2 & 6

3 0
1 year ago
A garden is in the shape of a square. The length of one side of the garden is
zheka24 [161]

Answer:

45,796 feet squared, assuming the length of one side is 214 feet.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
20≥8+4.99x please I could get an F.
marin [14]

Answer:

\begin{bmatrix}\mathrm{Solution:}\:&\:x\le \frac{1200}{499}\:\\ \:\mathrm{Decimal:}&\:x\le \:2.40480\dots \\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:\frac{1200}{499}]\end{bmatrix}

Step-by-step explanation:

20\ge \:8+4.99x\\Switch\:sides\\8+4.99x\le \:20\\\mathrm{Multiply\:both\:sides\:by\:}100\\8\cdot \:100+4.99x\cdot \:100\le \:20\cdot \:100\\Refine\\800+499x\le \:2000\\\mathrm{Subtract\:}800\mathrm{\:from\:both\:sides}\\800+499x-800\le \:2000-800\\Simplify\\499x\le \:1200\\\mathrm{Divide\:both\:sides\:by\:}499\\\frac{499x}{499}\le \frac{1200}{499}\\Simplify\geq \\x\le \frac{1200}{499}

5 0
3 years ago
Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a fl
mojhsa [17]

Answer: i divided AD And the answer is BDC

Step-by-step explanation:

7 0
3 years ago
Find the area of a triangle with a base length of 3 units and a height of 4 units.
eduard
A = 1/2bh
= 1/2(3)(4)
=1/2(12)
=6
The area of the triangle is: B) 6 units. 

Hope this helps!
4 0
3 years ago
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