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dusya [7]
3 years ago
13

(W+4)(3w-2) please solveeed

Mathematics
2 answers:
Shkiper50 [21]3 years ago
7 0

Step-by-step explanation:

{:}\longrightarrow\sf (w+4)(3w-2)

{:}\longrightarrow\sf w(3w-2)+4 (3w-2)

{:}\longrightarrow\sf 3w^2-2w+12w-8

{:}\longrightarrow\sf 3w^2+10w-8

Thepotemich [5.8K]3 years ago
3 0
3w^2 - 2w +12w -8
Simplify to 3w^2+ 10 -8 is the answer
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FACTOR....<br>x^2 + 10× - 2400 = 0​
Vikki [24]

Answer:

x= -5 + 5\sqrt{97}, x= -5 - 5\sqrt{97}

Step-by-step explanation:

Since this quadratic is set to zero, we can use the quadratic formula to solve this.

x^2 + 10x - 2400 = 0​

Quadractic formula =  x= -b +- \sqrt{b^2 - 4ac} /2a

For this equation:

a= 1, b=10, c=-2400

Plug these numbers into the equation and solve.

x= -10 +- \sqrt{10^2 - 4(1)(-2400})/2(1)

x= -10 +- \sqrt{100 + 9,600}/2

x= -10 +- \sqrt{9,700}/2

x= -10 +- \sqrt{2^2 * 5^2 * 97}/2

x= -10 +- 5 * 2\sqrt{97}/2

x= -10 +- 10\sqrt{97} / 2

Divide by 2.

x= -5 +- 5\sqrt{97}

Answer:

x= -5 + 5\sqrt{97} or x= -5 - 5\sqrt{97}

5 0
3 years ago
A line passes through (-2,5) and has slope. What is an equation of the line in point-slope form?
shepuryov [24]

Answer:

Step-by-step explanation:

since the question does not have a given slope you can just put the point into the point slope formula   y-y1 = m(x-x1)  

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since the slope is not given, leave it like that

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ale4655 [162]

Answer:

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Step-by-step explanation:

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= 2πr² + 2πrh

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<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

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