Answer:
i dont now
Step-by-step explanation:
ed
The measure of angle J is 19.8°, and the correct option is D.
<h3>What is the formula of cosine?</h3>
The law of cosine or cosine rule in trigonometry is a relation between the side and the angles of a triangle. Suppose a triangle with sides a, b, c and with angles cosC.
The following formula is used to find the angle j is;

Triangle HIJ has side lengths h=12, i = 17, j = 7.
Substitute all the values in the formula;

Hence, the measure of angle J is 19.8°, and the correct option is D.
Learn more about law cosine here;
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I don’t that’s a question
Answer:
a) (4,5)
b) (0,-3)
Step-by-step explanation:
We have to perform the following reflection over given ordered pair.
a) Reflect the ordered pair (-4,5) across the y-axis
Reflection over y-axis:

Thus, (-4,5) will be reflected over y-axis as

b) Reflect the ordered pair (0,3) across the y-axis
Reflection over x-axis:

Thus, (0,3) will be reflected over x-axis as

Answer:
2x+58+x=180 180-58=3x 122=3x
Step-by-step explanation:
x=40.666
*the sum of the angles of the triangle is 180 degrees