Answer:
-1
Step-by-step explanation:
You can write it as...
Carry the 4x
Then use the quadratic formula to solve, since you want to find the negative solution, you don't need to find the positive solution, so we will have
Therefore our answer is -1
What is the slopr of the line that contains the points (4,-1)and (-1,4)
1 answer:
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The roof will be in the shape of an isosceles triangle with a base length of 42 m and two sides that are 27 m. The two 27 m beams will have the same angle of elevation since they have to might in the middle.
So to find the angle of elevation, we can split the roof in half vertically to create a right triangle. The base will now be 21 m, and the hypotenuse will be 27 . Now we can use a trigonometry function to solve for the angle. We know the hypotenuse and the side adjacent to the angle, so we can use cosine.
The answer is 38.9 degrees
So to find the angle of elevation, we can split the roof in half vertically to create a right triangle. The base will now be 21 m, and the hypotenuse will be 27 . Now we can use a trigonometry function to solve for the angle. We know the hypotenuse and the side adjacent to the angle, so we can use cosine.
The answer is 38.9 degrees