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soldi70 [24.7K]
3 years ago
10

A 25-ft ladder and then you can get inside of a house the bottom of the ladder is 8 ft away from the bottom of the house what is

the measure of the angle formed by the bottom of the ladder and the ground round to the nearest degree
Mathematics
1 answer:
seropon [69]3 years ago
4 0

Answer:

71.33 degree

Step-by-step explanation:

The angle between the bottom of the ladder and the ground is given by

cos\alpha = \frac{B}{L}

Where

B = distance between wall of house and the foot of ladder

L = Length of the ladder

Substituting the given values we get -

Cos \alpha = \frac{8}{25}\\Cos \alpha = 0.32\\\alpha = Cos^{-1}(0.32)\\\alpha = 71.33

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ArbitrLikvidat [17]

Hi

f(x) = g(x)   if    -x²+3x-2   - ( -x+1) = 0

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                      -x² +4x -3 = 0

To solve, tou have to use the general method of resolution of a quadratic fonction.  

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Δ = (4)² - 4 * (1) *(-3)

Δ = 16 +12

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3 years ago
When simplifying 4x^3-10x^2+6x/2x^3+x^2-3x, what are the term(s) that can be cancelled
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Answer:

x can be cancelled

Step-by-step explanation:

we are given

\frac{4x^3-10x^2+6x}{2x^3+x^2-3x}

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and then we can factor it

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4x^3-10x^2+6x=2x(2x+1)(x-3)

now, we can factor denominator

2x^3+x^2-3x=x(2x^2+x-3)

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now, we can replace it

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we can see that

both terms are having x common

so, x can be cancelled

So,

x can be cancelled

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