Answer:
Khan Academy does a great job explaining in their videos titled Graphing Linear Equations. They also offer pracice with explinations and quizez on it.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given

--- right angle
Required
Which of the options is true
In a triangle, we have:
--- angles in a triangle
Substitute 

Collect like terms


This implies that E and G are complementary angles.
For complementary angles, E and G;
and 
<em>Hence, (4) is true</em>
Answer:
x = 9(a+g)
Step-by-step explanation:
x/9 - g = a
Add g to each side
x/9 - g+g = a+g
x/9 = a+g
Multiply each side by 9
x/9 * 9 = 9(a+g)
x = 9(a+g)
Total = Principal * (1 + (rate/n))^n*years
where n is the number of compounding periods per year
Total = 12,500 * (1 + (.0275/4) )^40
Total = 12,500 * <span>(1.006875) ^40
</span>Total =
<span>
<span>
<span>
12,500 * 1.3152923995
</span>
</span>
</span>
Total =
16,441.16
Source:
http://www.1728.org/compint.htm
If the area of the Jackson neighborhood garden is 672 yards, and the width of the garden is 21, that means that length of the garden is 32. (672 divided by 21 is 32) Then, since the Nguyen neighborhood garden is 15 yards longer than the length, that means you add 15 to 32, so that your answer is 47.
So first off, is D, and to get there we did the most important part with division and addition, which is A.
Final: D and A.