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Arte-miy333 [17]
3 years ago
6

For an angle θ with the point (−5, −12) on its terminating side, what is the value of cosine?

Mathematics
1 answer:
viva [34]3 years ago
8 0

Answer:

option C. -\frac{5}{13}

Step-by-step explanation:

we have  that

The point (-5,-12) belong to the III quadrant

so

The value of the cosine is negative

Applying the Pythagoras Theorem

Find the value of the hypotenuse

h^{2}=5^{2}+12^{2}\\ h^{2} =25+144\\ h^{2}=169\\h=13\ units

The value of cosine of angle θ is the ratio between the side adjacent to angle θ and the hypotenuse

cos(\theta)=-\frac{5}{13}

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I need help with this. I don’t understand this
Cerrena [4.2K]

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Step-by-step explanation:

You are supposed to find y = mx + b.

In that equation y = mx + b, b is the y intercept or the dot that passes through the y axis. The m in the equation is the slope, to find the slope you find the rise over run the simplify it as much as you can.

5 0
1 year ago
A 18 -person road crew is scheduled to finish repairing a highway in 10 days. On the morning of the fifth day, several workers o
Pavlova-9 [17]

Answer:

<u>9 workers finished the repairs, therefore 9 members of the original crew were removed. </u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

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Number of days remaining to finish the work = 10 - 4 = 6 days

Number of days that the rest of the crew finished the repairs = 12 days

2. How many workers were removed from the crew?

We will use Inverse Rule of Three to answer this question because the less workers the crew has the more time it will take them to finish the repairs, as follows:

Workers                Days

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      x                        12

12x = 18 * 6 (Inverse Rule)

12x = 108

x = 108/12

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3 0
3 years ago
What does 496.3 and 98 round using compatible numbers
Aleksandr [31]
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4 0
3 years ago
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ahrayia [7]

Answer:

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now, we can simplify it

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we know that

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