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2 years ago

14

Solve E=mc^2 for c?

1 answer:

Lisa [10]2 years ago

5 0

Answer:

±sqrt(E/m)= c

Step-by-step explanation:

E=mc^2

Divide each side by m

E/m=m/m c^2

E/m =c^2

Take the square root of each side

±sqrt(E/m)= sqrt(c^2)

±sqrt(E/m)= c

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Pentagon OPQRS is shown on the coordinate plane below:

sertanlavr [38]

Answer:

Multiply the coordinates of point P by the scale factor 7/4 to get the coordinates of P'.

Given : P(-5,3)

P' (x,y) = P (-5 x 7/4 , 3 x 7/4)

= P(-8.75, 5.25)

Step-by-step explanation:

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3 years ago

HELP!!!! Choose the correct answer. Which expression, when evaluated,

blagie [28]

We will check each options and verify it

(a)

$18-2m$

we can plug m=2

$18-2\times 2$

$18-4$

$14$

so, this is FALSE

(b)

$7x-\frac{x}{3} >19$

we can plug x=3

$7\times 3-\frac{3}{3} >19$

$21-1 >19$

$20 >19$

so, this is TRUE

(c)

$6x-1>4x+5$

we can plug x=3

$6\times 3-1>4\times 3+5$

$18-1>12+5$

$17>17$

so, this is FALSE

(d)

$2x^2-3x+1$

now, we can plug x=2

$2(2)^2-3(2)+1$

$8-6+1$

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2 years ago

5(n+1) = 2n + 20 can someone tell me the answer and explain

finlep [7]

Answer:

n=15

Step-by-step explanation:

5(n+1)=2n+20

U start by expanding the first term which will give you 5n+5

Then after that u collect like terms giving u

5n-2n=20-5

Finally u evaluate it giving u

n=15

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2 years ago

Read 2 more answers

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Yuri [45]

Answer c

Step-by-step explanation:

they have to be equivalent

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2 years ago

An arc of length 8 inches. Is intercepted by a central angle in a circle with a radius of 3 inches. What is the measurement of t

nevsk [136]

Answer:

the answer is 12

Step-by-step explanation:

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3 years ago