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3 years ago

8

E=mc^2 in terms of m

1 answer:

JulijaS [17]3 years ago

7 0

E/(c^2) = mc^2/(c^2)
m = E/(c^2)

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How many square feet in a mile?

Sindrei [870]

Answer:

Step-by-step explanation:

2.788 x 10^7

so 2.788 x 10 to the power of 7 = 1 mile

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3 years ago

Read 2 more answers

A rectangle has a perimeter of 32 in. find the length and width of the rectangle under which the area is the largest. follow the

Dafna1 [17]

Let width and length be x and y respectively.
Perimeter (32in) =2x+2y=> 16=x+y => y=16-x
Area, A = xy = x(16-x) = 16x-x^2
The function to maximize is area: A=16 x-x^2
For maximum area, the first derivative of A =0 => A'=16-2x =0
Solving for x: 16-2x=0 =>2x=16 => x=8 in
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3 years ago

Use the grouping method to factor x3 + x2 + 5x + 5.

lisov135 [29]

Answer:

answer is a

Step-by-step explanation:

look at picture

3 0

3 years ago

If a Tyrannosaurus rex ate 3 dinosaurs each week, how many would he eat in 9 weeks?

Dafna11 [192]

Answer:

27

Step-by-step explanation:

3/1=x/9

cross multiply, or its just a ratio actually. 1:3 is equal to 9:27

8 0

3 years ago

CAN SOMEONE PLEASE HELP ME WITH THESE PEOPLE

vazorg [7]

Inverse of $f(x)=x+2$ is $f^{-1}(x)=x-2$ because

$f(x)=x+2\Rightarrow x=f^{-1}(x)+2\Rightarrow\boxed{f^{-1}(x)=x-2}$

Now $f^{-1}(-5)=-5-2=\boxed{-7}$ .

Hope this helps.

4 0

3 years ago