Group up the like terms and combine them
2x^2 and -7x^2 add up to -5x^2
6x and 2x add up to 8x
1 and -3 add up to -2
We end up with -5x^2 + 8x - 2
<h3>Answer: Choice B</h3>
Answer:
Solve the inequality k + 6 ≤ 21;
(A)k ≥ 27
<u>(B)k ≤ 15 </u>
(C)k ≥ 15
(D)k ≤ 27
Step-by-step explanation:

Answer:
No,it's not linear because it doesn't have Y=2x+1.
Step-by-step explanation:
Answer:
261.98 is the value of the given expression.
Step-by-step explanation:
We have to find the value of the following expression:

Using the associative property, we can write and solve the given expression as:

Rounding off the answer, we get,

Thus, 261.98 is the value of the given expression.
Answer:

Step-by-step explanation:
<u>Congruent Triangles</u>
The figure shows two triangles FCD and FED. One of their sides is the radius of the circle, they both form a 90° angle with the line CD and ED and they share the same segment FD.
Thus, both triangles are congruent and we have the length of a side (12 units), one common side (the hypotenuse) and one unknown leg that must be equal. Therefore

Solving


The required side FD is the hypotenuse of any of the triangles. The unknown leg can be calculated by

Or

Thus

Solving

