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2 years ago

What is -7.2 as a fraction

Mathematics

2 answers:

rewona [7]2 years ago

7 0

Answer:

To convert a Decimal to a Fraction follow these steps:

Step 1: Write down the decimal divided by 1, like this: decimal 1.Step 2: Multiply both top and bottom by 10 for every number after the decimal point. ... Step 3: Simplify (or reduce) the fraction

yuradex [85]2 years ago

4 0

-7 2/10 which can be simplified to -7 1/5, or if you need an improper fraction it would be 72/10

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9. The maximum horizontal range of a projectile is given by the formula R= u2/g where u is the initial velocity and g is the acc

Helen [10]

<h2>Hello!</h2>

The answer is:

The velocity with which the ball can be thrown to have a maximum range of 20 meters is equal to 14 m/s.

$u=14\frac{m}{s}$

To solve the problem and find the velocity, we need to isolate it from the equation used to calculate the maximum horizontal range.

We have the equation:

$R=\frac{u^{2} }{g}$

Where,

R is the maximum horizontal range.

u is the initial velocity.

g is the gravity acceleration.

Also, from the statement we know that:

$R=20m\\g=9.8\frac{m}{s^{2} }$

So, using the given information, and isolating, we have:

$R=\frac{u^{2} }{g}$

$R*g=u^{2}$

$u^{2}=R*g=20m*9.8\frac{m}{s^{2} }=196\frac{m^{2} }{s^{2} }\\\\u=\sqrt{196\frac{m^{2} }{s^{2}}}=14\frac{m}{s}$

Hence, we have that the velocity with which the ball can be thrown to have a maximum range of 20 meters is equal to 14 m/s.

$u=14\frac{m}{s}$

Have a nice day!

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What is -7.2 as a fraction￼

What is -7.2 as a fraction