1. Rational. It is non-terminating but repeating.
2. Irrational. It is non-terminating, non-repeating
3. Irrational. π is irrational
4. Rational. √49 is 7
5. Irrational. 22 is not a square.
3x+2y=9
3x+2(4x-1)=9
11x-2=9
+2 +2
11x=11
X=1
Y=4x-1
Y=4(1)-1
Y=3
Answer:
27y + 18z
Step-by-step explanation:
9(3y+2z)
Distribute the 9
9 * 3y + 9* 2z
27y + 18z
Answer:
The ramp should be 32.9 feet longer.
Step-by-step explanation:
When the ramp is at 
to the ground, its length can be determined by applying the appropriate trigonometric function. Let the length be represented by l, so that;
Sin θ = 
Sin = 
l = 
= 
= 33.0048
l = 33.0 feet
When the angle is reduced to 
, the length of the ramp would be;
Sin θ =
Sin =
l = 
= 
= 65.9152
l = 65.9 feet
Change in length of ramp = 65.9 - 33.0
= 32.9
The ramp should be 32.9 feet longer.
Hope this answer helps :)
