NEED help plz plz don’t be shy

The bike will travel about 75 feet when the wheel makes 15 complete rotation

The wheel will make 8 rotations if Noha rides 40 feet

Step-by-step explanation:

The distance that a wheel can make in one rotation equal the circumference of the wheel

D = C × n, where

Let us use this fact to solve the question

∵ The circumference of the wheel  C = 5 feet

∵ The wheel makes 15 complete rotation

→ Substitute them in the rule above to find the distance

∵ D = 5 × 15

∴ D = 75 feet

The bike will travel about 75 feet when the wheel makes 15 complete rotation

∵ Noha rides for 40 feet

∴ D = 40

∵ C = 5 feet

→ Substitute them in the rule above to find the number of the rotation

∵ 40 = 5 × n

∴ 40 = 5n

→ Divide both sides by 5 to find n

∴

∴ 8 = n

The wheel will make 8 rotations if Noha rides 40 feet

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.