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Helga [31]
2 years ago
12

15 points PLEASE HELP!!! Factor the following equation:

mula1" title="x^2+3x+4" alt="x^2+3x+4" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
ycow [4]2 years ago
5 0

Step-by-step explanation:

x²+3x+4=0

x²+3x_ +2=0

x²+3x_2=-2

x²+3x_2+(3x_4)²=-2+(3/4)²

(x+3/4) =-2+9_16

x+3_4 = -32+9__16 =√-23_6

x+3_4 =-√23_4

x = -3+√-23___4

x = -3- √-23___4 , -3+√-23___4 //

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Can x in f(x) be replaced by another letter? For example f(a);Would that be the same thing?
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3 years ago
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3 years ago
A painting measures b meters by 4 meters. a frame shop charges $10 per meter for a wooden frame. how much would it cost to buy a
hammer [34]

$ (20b + 80) is the cost to buy a frame for the panting given that measures b meters by 4 meters and charges $10 per meter for a wooden frame. This can be obtained by finding the perimeter of the painting and multiplying with the cost of wood per meter.

<h3>What is the cost of buying a frame for the painting?</h3>

Given that,

length of the painting (l) = b meters

width of the painting (b) = 4 meters

Perimeter of the painting = 2(l+b)

                                          = 2(b+4)

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Hence $ (20b + 80) is the cost to buy a frame for the panting given that measures b meters by 4 meters and charges $10 per meter for a wooden frame.

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4 0
2 years ago
Please answer number 8 thank youuu
Alexxx [7]

Answer: 35

Step-by-step explanation:

Triangle BDC is an equilateral triangle

Triangle ABD is an isosceles triangle

so the length of BD is 8

because BDC is equilateral all sides are 8

then you add your numbers up

8+8+8+11

=35

4 0
3 years ago
Read 2 more answers
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