Ik one for sure is a horizontal asmym which is 3
221 seconds to x minutes.
To convert the seconds into minutes, you'd need to multiply by something that would cancel out the seconds. So if the 221 seconds are the numerator right now, you'd have to multiply by something with the seconds in the denominator.
The only one here that makes sense is
D. 1 minute/60 seconds
Part a b2+49−(b−7)2
Distribute:
=b2+49+−b2+14b+−49
Combine Like Terms:
=b2+49+−b2+14b+−49
=(b2+−b2)+(14b)+(49+−49)
=14b
Answer:
=14b
part b
(2a+6b)2−24ab
Distribute:
=4a2+24ab+36b2+−24ab
Combine Like Terms:
=4a2+24ab+36b2+−24ab
=(4a2)+(24ab+−24ab)+(36b2)
=4a2+36b2
Answer:
=4a2+36b2
Assuming she bought one pack of each and that’s all she can get.
She can make 42 arrangements with 4 balloons each:
2yellow
1blue
1red
(Having 28 red left over)
Good luck, again we are assuming she bought the balloons because it says “balloon packs come in”
Answer (b): There is a strong positive correlation between time studied and test scores.
Reason:
(1) it is upward, so it is positive.
(2) They are closely packed, so there is a strong correlation.