All categories

3 years ago

Please help me solve this 5^2x=7^x+1

Mathematics

2 answers:

denis23 [38]3 years ago

7 0

Answer:

$x=\frac{ln7}{2ln5-ln7}$

Step-by-step explanation:

5^2x=7^x+1 ⇔ ln5^2x = ln7^x+1 ⇔ 2xln5 = (x+1)ln7 ⇔ (2ln5-ln7)x = ln7

⇔ x = ln7/(2ln5-ln7)

Mnenie [13.5K]3 years ago

5 0

It’s gonna translate to 25x=7x+1
so then 18x=1

You might be interested in

I need this done thanks

Sindrei [870]

Answer:D

Step-by-step explanation:

5 0

3 years ago

You have a Rectangle with sides of 5ft and 8ft; solve for its perimeter and area.

Nezavi [6.7K]

Answer:

Perimeter = 2(l+w) = 2*(5+8) = 26ft

Area = wl = 8*5 = 40

Step-by-step explanation:

pretty sure :)

6 0

2 years ago

The sum of two numbers is -10.5.

grandymaker [24]

Answer:

-5 and -5.5;

-12.5 and 2

Step-by-step explanation:

Two negative addends, can be added together to give -10.5.

For example:

(-5) + (-5.5) = -5 - 5.5 = -10.5

Also, it is possible for one of the addends to be negative while the other is positive, and their sum will give us -10.5.

For example:

The sum of -12.5 and 2 will give us -10.5.

We are adding a positive and a negative number here. As usual, we will subtract the smaller number from the bigger number, while the result will carry the sign of the bigger number, which in this case is negative sign.

Thus:

(-12.5) + (2) = -10.5

4 0

3 years ago

The price of tiling a room varies directly as the size of the room. Sam is laying tile in his kitchen. If the tiling costs $4,22

stiv31 [10]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Let the price of the room be p

Let the size of the room be s

To find the size of a kitchen that costs $3,824.00 we must first find the relationship between them

The statement

The price of tiling a room varies directly as the size of the room is written as

where k is the constant of proportionality

when

p = $4,224.00

s = 264 square feet

Substitute the values into the expression to find k

That's

4224 = 264k

Divide both sides by 264

k = 16

So the formula for the variation is

when

p = 3824

$s = \frac{p}{16}$

$s = \frac{3824}{16}$

s = 239

The final answer is

239 square feet

Hope this helps you

6 0

3 years ago

Since Beth was born, the population of her town has increased at a rate of 850 people per year. On Beth's 9th birthday, the tota

scZoUnD [109]

Answer:

editor edit

37,650

Step-by-step explanation:

37650

3 0

3 years ago