Answer:
Step-by-step explanation:
-4 = x - 7
-4 + 7 = x
3 = x
Therefore x = 3
Answer:
x=83. please look below for explanation. if anything isn't clear, please ask
Step-by-step explanation:
so complementary means adding up to 90 degrees in math. in this particular equation, you have to make sure that both (x-18) and 25 add up to 90.
if that other side is 25 degrees, the other side must be 65 because 90-25=65.
so now you have to set those equal to each other like this:
65 = (x-18) now just solve for x
add the 18 to the other side. the -18 and +18 cancel.
x=83
so to test and to see if that is right, we can do
83-18 = 65
does 65+25 equal 90? yes
therefore, x=83
Answer:
See below
Step-by-step explanation:
<u>Convert equation to vertex form </u>
<u> by completing the square:</u>
<u>Vertex:</u>
<u />
<u />
<u>Directrix:</u>
<u />
<u />
<u />
(13x6)+89 with the power of 2 is 7999
