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Leno4ka [110]
3 years ago
13

Solve for : 8x - 3 = 5 (2x + 1)

Mathematics
1 answer:
diamong [38]3 years ago
8 0

Answer:

x = -4

Step-by-step explanation:

8x-3=5(2x+1)

8x-3=10x+5

-3=2x+5

-8=2x

-4=x

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3 years ago
Asian has 4 dogs each dog eats 2 cups of dog food per day a bag of dog food lasts Asian 12 days . How many total cups of food ar
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Answer:

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7 0
3 years ago
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Solutions to this quadratic<br> F(x) = x^2 + x - 2
dybincka [34]

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Step-by-step explanation:

4 0
3 years ago
Draw the largest possible square inside an equilateral triangle, with one side of the square aligned with one side of the triang
Ronch [10]

Answer:

Rectangular area

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Step-by-step explanation: See annex

We have an equilateral triangle (3 equal sides, three equal inside angles)

side length  =  6

∠  ABC  = ∠BCA  = ∠CAB  =  60⁰  

tan 60⁰  =  sin 60⁰/cos 60⁰    =  √3/2 / 1/2    

tan 60⁰  = √3    

From annex

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Then

A = a*b

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Taking derivatives on both sides of the equation we get:

A´(x)  =  6*√3  - 4*√3 *x    ⇒    A´(x)  = 0      ⇒  6*√3  - 4*√3 *x  = 0

x =  6/4         ⇒     x   =  1.5

then    a  =  6 - 2*x         ⇒    a  =  6 - 3   ⇒     a  =  3 (units)

and  b  =  √3*x   =  1.5 *√3  =  2.60 units

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7 0
3 years ago
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k0ka [10]

Answer:


Step-by-step explanation:

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8 0
4 years ago
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