Answer: OPTION D.
Step-by-step explanation:
Given the equilateral triangle shown in the figure, you need to find the value of the altitude "a".
In order to find the altitude, you can use the following Trigonometric Identity:

In this case you can identify that:

Therefore, you can substitute values into
:

Finally, you must solve for the altitude "a". Then, this is:

Notice that this result matches with the value shown in Option D.
Median is the middle so the answer is 6.5
7*4=28
28+7m=49
49-28=21
7m=21
21/7=3
m=3
Answer:
y>-2x-1 answer is b
-4x+y> 1 is c I believe
Step-by-step explanation:
Answer:
Joan pay 48 % price of the new truck for a used truck .
Step-by-step explanation:
Given as :
The price of new truck = $ 23,000
The price of used truck = $ 11,000
Let the percentage price = x %
Or, x % of new truck price = old truck price
I.e x % of $ 23,000 = $ 11,000
Or, x % = 
Or, x % = 
∴ x = 0.4782 × 100
I.e x = 47.82 % ≈ 48 %
Hence Joan pay 48 % price of the new truck for a used truck . Answer