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3 years ago

(1/2)^(x-3) = (1/4)^(x-5) Solve for x using logs

Mathematics

1 answer:

inn [45]3 years ago

5 0

(X-3)*log(1/2)=(x-5)*log(1/4)
X-3=(log(1÷4)÷log(1÷2))*(x-5)
X-3=2(x-5)
X-3=2x-10
X-2x=3-10
-x=-7
X=7

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cestrela7 [59]

Answer:

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Step-by-step explanation:

x² + 6x = 18

→ Minus 18 from both sides to get a quadratic equation

x² + 6x - 18

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⇒The value of 'a' will always be half the 'b' value in the equation

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→( x + 3 )² + b

Expand out the equation to find 'b'

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We have do something to get from 9 to - 18 which -27

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3 years ago

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vodka [1.7K]

Answer:

1 hour and 20 minutes

Step-by-step explanation:

6mph= 6 miles every hour

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3 years ago

What 2 numbers equal -36 when multiplied together but equal 0 when added together?

Lelu [443]

You can do that using +6 and -6 .

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3 years ago

Question 4 (1 point) Determine whether the ordered pair (3,28) is a solution to the equation 2x- y/2 = -8 (3, 28) Is a solution

bulgar [2K]

Answer:

It is a solution

Step-by-step explanation:

Given

$2x - \frac{y}{2} = -8$

Required

Determine if $(3,28)$ is a solution

$(3,28)$ implies that:

$x = 3$

$y = 28$

To check if it is a solution, we simply substitute values for x and y in the given equation;

$2x - \frac{y}{2} = -8$

$2(3) - \frac{28}{2} = -8$

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Since both sides of the equation are equal; then, Yes, it is a solution

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2 years ago

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Lubov Fominskaja [6]

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2 years ago