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valentina_108 [34]
3 years ago
7

What is cos A for this triangle?

Mathematics
1 answer:
mojhsa [17]3 years ago
5 0

Answer:

48/ 73

Step-by-step explanation:

With reference angle A

perpendicular (p) = 55

base (b) = 48

hypotenuse (h) = 73

Now

Cos A

= b/h

= 48/73

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To solve, you must make one side of the equation equal to zero. We can do this by subtracting 3x on both sides of the equation.

<span>x^2 + 7x = 3x
</span>       - 3x    -3x

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Then we substitute the equation into the quadratic equation.

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7 0
4 years ago
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The factorization of x2 + 3x – 4 is modeled with algebra
meriva

Option C: (x+4) and (x-1) are the factors of the equation

Explanation:

Given that the equation is x^{2} +3x-4

We need to determine the factors of the equation.

Splitting the middle term, we get,

x^{2} +4x-x-4

Grouping the terms, we have,

x(x+4)-1(x+4)

Let us factor out the term (x+4), we have,

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Hence, Option C is the correct answer.

4 0
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