4 years ago

When he was born, Cooper's

Mathematics

1 answer:

polet [3.4K]4 years ago

3 0

A is the answer A is the answer A is the answer A is the answer

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Please help with this maths question!??

tia_tia [17]

Answer:

2.44746×10⁶

Step-by-step explanation:

R=(3.8×10⁵)²/5.9×10⁴

=3.8²×10¹⁰/5.9×10⁴

=1.444×10¹¹/5.9×10⁴

=1.444×10⁷/5.9

=361×10⁷/1475

=2.44746×10⁶

4 0

3 years ago

The range of a projectile that is launched with an initial velocity v at an angle of a with the horizontal is given by R

lara31 [8.8K]

Answer:

$\theta=30.285^{\circ}$

Step-by-step explanation:

The range of a projectile is given by :

$R=\dfrac{u^2\sin2\theta}{g}$

Put R = 20 m, u = 15 m/s and finding the value of angle of projection

So,

$R=\dfrac{u^2\sin2\theta}{g}\\\\\sin2\theta=\dfrac{Rg}{u^2}\\\\\sin2\theta=\dfrac{20\times 9.8}{15^2}\\\\\sin2\theta=0.871\\\\2\theta=\sin^{-1}(0.871)\\\\2\theta=60.57\\\\\theta=30.285^{\circ}$

So, the required angle of projection is equal to $30.285^{\circ}$ .

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3 years ago

-9y + 2 - 1 + 6 + y - 7

dem82 [27]

-8y is the answer.
-9y+y=-8y
2-1+6-7=0

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3 years ago

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The graphed line shown below is Y = 5x-10

Angelina_Jolie [31]

Hope it will help you

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3 years ago

Read 2 more answers

Y=-4x-5 and y=-4x+1<br> Many solitions, one solution, or no solution

GuDViN [60]

There will be no solutions because the lines have the same slope (-4) meaning they are parallel to each other and will not cross.

Hope this helps!!

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4 years ago