A=10x(15x)-p(4x)^2
A=150x^2-16px^2
A=(150-16p)x^2
Answer:
7) x= 5, 8) x= 6, 9) x= 7
Step-by-step explanation:
As per the secant theoram, if two secant intersect outside the circle then the product of the exterior secant and total length of each secant are equal.
7) ∴ 
opening parethesis and distributing 3 with x and 3.
⇒ 
subtracting 9 on both side.
⇒ 
cross multiplying
∴ x= 5.
8) 
Opening parethesis and distributing 4 with x and 4.
⇒ 
⇒ 
subtracting 16 on both side.
⇒ 
cross multiplying
∴ x= 6.
9) 
opening parethesis and distributing 5 with x and 5.
⇒ 
subtracting 25 on both side.
⇒ 
cross multiplying
∴ x= 7.
The least Ben can sell is 37 manipulative to reach his goal.
Where’s the model? If it says choose a model, there should be a model
Total = 14 m.
ratio of bows:strips = 3:4
Length for bows = 3/(3+4)*14=6 m
Length for strips = 4/(3+4)*14=8 m
Check: 6m + 8m = 14 m = total, ok.