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2 years ago

Log 2x=-1 solve for x

Mathematics

1 answer:

RoseWind [281]2 years ago

7 0

Answer:

= − 1 /2 :)

Step-by-step explanation:

Divide both sides of the equation by the same term

2 = − 1 2 2 = − 1 2

Simplify

Cancel terms that are in both the numerator and denominator

2 2 = − 1 2

22x=2−1 = − 1 2

x=2−1 = − 1 2

Solution

= − 1 /2 :)

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Which equation has the steepest parabola?

ICE Princess25 [194]

Given:

The equations of parabolas in the options.

To find:

The steepest parabola.

Solution:

We know that, if a parabola is defined as

$(y-k)=n(x-h)^2$

Then, the greater absolute value of n, the steeper the parabola.

It can be written as

$\dfrac{1}{n}(y-k)=(x-h)^2$

$p(y-k)=(x-h)^2$

where $p=\dfrac{1}{n}$ , the smaller absolute value of p, the steeper the parabola.

Now, find the value of |p| for eac equation

For option A, $|-0.5|=0.5$

For option B, $|5|=5$

For option C, $|8|=8$

For option D, $|-10|=10$

Since, the equation is option A has smallest value of |p|, therefore, the equation $(x+2)^2=-0.5(y+3)$ represents the steepest parabola.

Hence, the correct option is A.

7 0

2 years ago

N+3/4=1/4 solve for n

Hitman42 [59]

Answer:

N = -1/2

Step-by-step explanation:

We are adding in this, so we need to do the opposite to both sides, to get N by itself.

N + 3/4 - 3/4 = 1/4 - 3/4

N = -2/4 or, simplified, -1/2

6 0

2 years ago

I need help with number 10 please I’m so confused on how to do it!

Solnce55 [7]

Given:

A figure.

$m \angle C D A=9 x+3$ and $m \angle E D A=6 x+5$

To find:

What kind of figure and the value of x

Solution:

All four sides are congruent.

Diagonals bisect each other.

There the given figure is rhombus.

Diagonals bisect the angles.

⇒ $m \angle C D A=m \angle E D A$

$9 x+3=6x+5$

Subtract 3 on both sides.

$9 x+3-3=6x+5-3$

$9 x=6x+2$

Subtract 6x from both sides.

$9 x-6x=6x+2-6x$

$3x=2$

Divide by 3 on both sides.

$\frac{3x}{3} =\frac{2}{3}$

$x=\frac{2}{3}$

The value of x is $\frac{2}{3}$ .

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2 years ago

One bag contains a mixture of 30% black sand and 70% red sand. A second bag

ipn [44]

Answer:

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Step-by-step explanation:

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2 years ago

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earnstyle [38]

Answer:

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Step-by-step explanation:

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