Answer: x=9
Pls mark brainliest.
42 degrees. Divide 105 by 5 and get 21 and then multiply it by 2.
For
ax^2+bx+c
the axis of symmetry is -b/2a
first one
-3/2=3, nope
2nd one
3/2=3? nope
3rd one
-6/2=3? nope
fourth
6/2=3? yes
answer is last one or
f(x)=x^2-6x-1
Answer:
13.
Step-by-step explanation:
3x+1
x=4
Substitute x for 4
So, that would be 3*4+1
Now we multiply 3 and 4 to get 12. Then we add in the 1.
ANSWER: 84
A=2AB+(a+b+c)h
AB=s(s﹣a)(s﹣b)(s﹣c)
s=a+b+c/2
A=ah+bh+ch+1
2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=3·6+5·6+4·6+1
2·﹣34+2·(3·5)2+2·(3·4)2﹣54+2·(5·4)2﹣44=84
