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xxMikexx [17]
2 years ago
15

Solve the equation for x by graphing. 2^x - 4 = -4^x + 4

Mathematics
2 answers:
lapo4ka [179]2 years ago
8 0
X~1.25. All you have to do is graph the function and see where the graph crosses the x-axis.
Katena32 [7]2 years ago
5 0
Draw 2 graphs on same grid. Where they intersect is the solution

y = 2^x + 4
y = -4^x - 4

Approximate answer is x = 1.25

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Which planet is about 1 /10 of the distance Uranus is from the sun?
tino4ka555 [31]
There is no real planet that is 1/10 the distance Uranus is from the sun, however the planetoid (smaller planet), Vesta is 1/9 the distance Uranus is from the sun.
3 0
3 years ago
Read 2 more answers
A farmer wants to fence a rectangular area of 72 square feet next to a river. Find the length and width of the rectangle which u
Arlecino [84]

Answer:

  • 12 ft parallel to the river
  • 6 ft perpendicular to the river

Step-by-step explanation:

The least fence is used when half the total fence is parallel to the river. That is, the shape of the rectangle is twice as long as it is wide.

72 = W(2W)

36 = W²

6 = W . . . . . . the width perpendicular to the river

12 = 2W . . . .  the length parallel to the river

_____

<em>Development of this relation</em>

Let T represent the total length of the fence for some area A. Then if x is the length along the river, the width is y=(T-x)/2, and the area is ...

  A = xy = x(T -x)/2

Note that the equation for area is that of a parabola with zeros at x=0 and at x=T. That is, for some fence length T, the area will be a maximum at the vertex of this parabola. That vertex is located halfway between the zeros, at ...

 x = (0 +T)/2 = T/2

The corresponding area width (y) is ...

  y = (T -T/2)/2 = T/4

Equivalently, the fence length T will be a minimum for some area A when x=T/2 and y=T/4. This is the result we used above.

8 0
3 years ago
Plzz help me im am stuck
Pachacha [2.7K]
I hope this helps you!

7 0
3 years ago
​
DedPeter [7]

Answer:

The solution is (3/8, -7/8).

Step-by-step explanation:

y = −5x + 1

y = 3x − 2

Since  the 2 expressions in x are both equal to y :

−5x + 1  = 3x - 2

-5x - 3x = -2 - 1

-8x = -3

x = 3/8.

So y = 3x - 2

= 3(3/8) - 2

= 9/8 - 2 = -7/8.

6 0
3 years ago
What is the distance from the origin to point A graphed on the complex plane below?
Degger [83]

Answer: False

Step-by-step explanation:

You didn't give the coordinate plane that I was supposed to use while helping you.

3 0
3 years ago
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