Answer:

Step-by-step explanation:
we have

Solve for x
Applying difference of squares in the denominator of the second term in the left side

Multiply both sides by (x+3)(x-3)

Apply the distributive property in the left side

Combine like terms left side

Group terms


Divide by 3 both sides

Answer:
The old tower has 150 steps
Step-by-step explanation:
Let the number of steps in the old tower be m
Mathematically, time = distance/speed
In this case, the distance is the number of steps while the speed is the rate of climbing or descending
For climbing, time spent = m/3
For descending time spent = m/2
Since it took her 25 longer when descending;
This means that;
m/2 - m/3 = 25
(3m-2m)/6 = 25
m/6 = 25
m = 6 * 25
m = 150 steps
Answer: 4
Step-by-step explanation:
First, you have to pay to get in the game ($15 - $7) and then you have $8 left. Each snack is $2, so for $8 you can get 4 snacks (2x4=8)
Answer:
Slope = -1
Step-by-step explanation:
Brainlist please
Answer:
1.5 cm
Step-by-step explanation:
The lateral area is given by ...
LA = πrh
86 cm^2 = π(18 cm)h
h = (86 cm^2)/(18π cm) ≈ 1.5 . . . cm
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<em>Comment on the problem</em>
The geometry described here is impossible. The slant height cannot be less than the radius of the cone. We suspect a typo in the problem statement.