Answer:
The inverse of
y
=
2
x
is
y
=
log
2
x
Explanation:
This is how to do it.
From the given
y
=
2
x
interchange the variables so that
x
=
2
y
then solve for y:
x
=
2
y
take the logarithm of both sides with base
=
2
log
2
x
=
log
2
2
y
log
2
x
=
y
and
y
=
log
2
x
The graph of
y
=
2
x
and its inverse
y
=
log
2
x
. They are symmetric with the line
y
=
x
graph{(y-2^x)(y-log x/log 2)(y-x)=0[-20,20,-10,10]}
Where is the table i dont see it
Start with the general formula. The key word is difference. So the general formula is
D(x) = W(x) - R(x) Now substitute in the values for W(x) and R(x)
D(x) = 0.002x^3 - 0.01x^2 - (x^2 - 4x + 13) Be very careful about the sign in front of the brackets.
D(x) = 0.002x^3 - 0.01x^2 - x^2 + 4x - 13 Do you see what that minus sign did? It affected all 3 terms.
D(x) = 0.002x^3 - 1.01x^2 + 4x - 13 <em>Note: -0.01 - 1x^2 = - 1.01 x^2</em>
That gives you a clear cut answer
C<<<<< answer.
That sign is the worst part of the question. Make sure you understand what it did.
Answer:
A
Step-by-step explanation:
the answer is A good luck
Answer: first choice 14.142 ft
Explanation:
1) Side length of the square: x
2) Use the Pythagorean theorem to relate the side lenght with the diagonal:
diagonal² = x² + x² = 2x²
3) Clear x:
x² = diagonal² / 2
⇒x = √(diagonal² / 2) = diagonal /√2 = diagonal √2 / 2
4) subsitute diagonal = 5 ft
⇒ x = 5 ft √2 / 2 ≈ 3.536 ft
5) The perimeter of the square is 4 times the side length:
Perimeter = 4 × 3.536 ft = 14.142 ft
