Answer:

Step-by-step explanation:
Given that,

We need to find the value of cos x.
We know that,

Using the above relation,

So, the value of cos x is equal to
.
Answer:
21 kilometers!
Explanation: You add the two distances she rode her bicycle and add them together. 9+12 = 21kilometers!
A supplementary angle is an angle in which two of it's measurements can be added to equal 180 degrees.
For example, a measure of 130 and a measure of 50 in the same shape.
They can both be added to equal 180.
Answer:
Similar, AA similarity, ΔAKL
Step-by-step explanation:
BC and KL are parallel. Therefore, ∠B and ∠K are alternate interior angles, and ∠C and ∠L are also alternate interior angles. Alternate interior angle are congruent, so by AA similarity, ΔABC ~ ΔAKL.
Standard form of a linear equation is
Ax + By = C, where A, B, and C are integers.
Add 3 to both sides to get
4x + 4y = 3