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3 years ago

Combine the like terms to create an equivalent expression. k + k + k *

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

7 0

Answer:

Step-by-step explanation:

Ok, so pretend each k has a 1 in front of it. so 1k+1k+1k= 3k. If you need a different equation, you can do 2k+1k=3k or something like that. :)

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4 years ago

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alexira [117]

Answer:

784 in²

Step-by-step explanation:

Let the original side is x.

1 foot = 12 inches

New sides of a rectangle are:

x + 12 and x - 4

The area of rectangle is:

(x + 12)(x - 4) = 960

Solve for x:

x² + 8x - 48 = 960
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3 years ago

7233 divided by 164 equals

stepan [7]

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3 years ago

A 0.30 kg bird flies in a horizontal curve of radius 20 m at 15 m/s. The force exerted by the air on the bird is about

monitta

Answer:

<h2>b) 3.48 N approx.</h2>

Step-by-step explanation:

The bird will experience a centripetal force, this is the force exerted on a body that moves through a curve path.

$F_c = \frac{mv^2}{r}$

Fc=centripetal force

m=mass

v=velocity

r=radius

Step one:

given data

mass of bird m=0.3kg

the radius of curve r= 20m

velocity v= 15 m/s

Substituting we have

$F_c = \frac{0.3*15^2}{20}\\\\F_c= \frac{0.3*225}{20}\\\\ F_c=\frac{67.5}{20}\\\\F_c=3.37N$

The force is 3.37N

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3 years ago

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tiny-mole [99]

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3 years ago