Step-by-step explanation:
1. Multiply 18.5 by 6.
18.5 x 6 = 111
2. Subtract 129.25 by 111.
129.25 - 111 = 18.25
Therefore, the answer is A. 18.25
Step-by-step explanation:
First, standard form is
a
x
+
b
y
+
c
=
0
In this question, we can expend the formula and rearrange it.
You can try it first, and the steps are as follow:
Step 1: Expend it
2
y
+
3
=
−
1
3
x
+
2
3
As there are fraction in the formula and it doesn't look good, we can eliminate it by multiplyng 3.
Step 2: Multiply by 3
6
y
+
9
=
−
1
x
+
2
Step 3: Rearrange the terms
x
+
6
y
+
7
=
0
Answer:
1:1
Step-by-step explanation:
<h3>
Answer: Choice C, Ro, 270 </h3>
270 degree counterclockwise rotation around the origin
=============================================================
Check out the diagram below. In the diagram, I only focus on points A and A'.
We have A = (-3,4) move to A ' = (4, 3). We see the x and y coordinates swap places. Then the new second coordinate -3 becomes positive, or it has flipped sign. So the rule applied here is 
which describes a 90 degree clockwise rotation; which is equivalent to a 270 degree counterclockwise rotation
The other points follow the same idea.
Answer:
x = 4
Step-by-step explanation:
