Answer:
Mathematics lesson
Step-by-step explanation:
Algebra and 3D, D-Shapes
Hello,
Starting with problem one:
Subtract 66 from both sides.
z2−9z−66=66−66
z2−9z−66=0
Use quadratic formula with a=1, b=-9, c=-66.
z = 9/2+1/2√345
Problem two:
Subtract 17 from both sides.
y^2+16y−17=17−17
y^2+16y−17=0
Factor left side of equation.
(y−1)(y+17)=0
Set factors equal to 0.
y−1=0 or y+17=0
y=1 or y=−17
ANSWER: y=1 or y=−17
Problem 3:
2h^2−5h−(−1)=−1−(−1)
2h^2−5h+1=0
Use quadratic formula with a=2, b=-5, c=1.
ANSWER: h=5/4+1/4√17
Have an amazing day.
Answer:
102 boxes.
Step-by-step explanation:
102x12=1224
The question says how many *full* boxes so even though the number is not exactly 1228, the correct answer is 102 boxes. Hope this helps!
1/9^2 if that makes sense?
