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Sergeu [11.5K]
2 years ago
13

What is the approximate solution to this equation?

Mathematics
1 answer:
Nookie1986 [14]2 years ago
7 0

Answer:

  C.  x ≈ 0.28

Step-by-step explanation:

A graphing calculator solution is attached. It shows ...

  x ≈ 0.28

__

You can divide both sides of the given equation by 5, then take natural logs and divide by 5 again.

  5e^(5x) = 20 . . . . . . given

  e^(5x) = 4 . . . . . . . . divide by 5

  5x = ln(4) . . . . . . . . take natural logs

  x = ln(4)/5 . . . . . . . divide by 5

  x ≈ 0.277259 ≈ 0.28

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Can someone help me with my math homework please please please
german

Answer:

  25

Step-by-step explanation:

Put the numbers where the corresponding letters are, and do the arithmetic.

  3² +3·8 +2 -2·5

  = 9 +24 +2 -10

  = 25

7 0
3 years ago
How many sides do 3 octagons and 3 pentagons have in all?
Neporo4naja [7]
39 sides is the answer to it
3 0
3 years ago
Read 2 more answers
Precalc.
viktelen [127]
Domain: x>0.

(\log_2x)^2+7\log_2x+12=0

Substitute t=\log_2x\in\mathbb{R}. We have:

 t^2+7t+12=0\\\\a=1\qquad b=7\qquad c=12\\\\\\\Delta=b^2-4ac=7^2-4\cdot1\cdot12=49-48=1\\\\\sqrt{\Delta}=\sqrt{1}=1\\\\\\
t_1=\dfrac{-b-\sqrt{\Delta}}{2a}=\dfrac{-7-1}{2}=\dfrac{-8}{2}=-4\\\\\\
t_2=\dfrac{-b+\sqrt{\Delta}}{2a}=\dfrac{-7+1}{2}=\dfrac{-6}{2}=-3

For t₁ there will be:

\log_2x=t_1\\\\\log_2x=-4\\\\2^{-4}=x\\\\x=\dfrac{1}{2^4}\\\\\\x=\dfrac{1}{16}=0,0625\\\\\\\boxed{x\approx0,063}

and for t₂:

\log_2x=t_2\\\\\log_2x=-3\\\\2^{-3}=x\\\\x=\dfrac{1}{2^3}\\\\\\x=\dfrac{1}{8}\\\\\\\boxed{x=0,125}

Answer d)


6 0
3 years ago
Two sides of a rectangle are the same length, r. The other two sides are each 4 meters.
exis [7]

Answer:

4 times 4 plus 10

Step-by-step explanation:

there are waaaay more ways than just this there is

( 8 times 2 ) plus ( 5 times 2 )

and

( 5 plus 5 ) plus 16

plz mark me as brainiest

5 0
3 years ago
Which of the following offer better value for money?
Stels [109]

Answer:

40 teabags for 0.96 (this is the most british question I've ever saw)

Step-by-step explanation:

1.62 / 60 = 0.027 (price per teabag)

0.96 / 40= 0.024 (price per teabag)

40 teabags for 0.96 is the better deal

5 0
3 years ago
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