-x^2 - 5x - 4 = -x^2 + 9x - 18
-5x - 9x = -18 + 4
-14x = -14
x = -14/-14
x = 1 <====
y = -x^2 - 5x - 4
y = (-1^2) - 5(1) - 4
y = 1 - 5 - 4
y = 1 - 9
y = -8 <====
Answer: 25.13cm^3
V=π*r^2*h
/3
π·2^2·6
/3
24.13274 cm^3 rounded is 25.13
SO 25.13 CENTIMETERS CUBED IS YOUR ANSWER
Answer:
x=3, y=1
Step-by-step explanation:
2x+y =7
3x-4y =5
Multiply the first equation by 4 so we can eliminate y
4(2x+y =7)
8x +4y =28
Add this to the second equation
8x +4y =28
3x-4y =5
----------------
11x = 33
Divide by 11
11x/11=33/11
x=3
Now we still need to find y
2x+y=7
2(3)+y =7
6+y=7
Subtract 6 from each side
6-6+y=7-6
y= 1
Tan(30°) = opposite/adjacent ⇒
opposite = adjacent * tan(30°) = 25 * 0.5773 ≈14.4 in ← <span>to the nearest tenth.</span>
There it is in the image. Hope it helps. You don't need the negative y- axis.
