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4 years ago

Solve 4^5x = 16^2x-1

2 answers:

Rudiy274 years ago

5 0

Convert the exponential equation to a logarithmic equation using the logarithm base (16) of the right side $4^{5x}$ equals the exponent (2x−1).

 $(4^{5x}) = 2x - 1$

MrRa [10]4 years ago

5 0

Answer:

x = − 2

Step-by-step explanation:

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Which number is between 1/2 and 8/9 ? 1/3 19/24 7/24 22/24

Helen [10]

Answer:

5/9, 11/18, 2/3, 13/18, 7/9, 15/18

Step-by-step explanation:

To find the number between these 2, see what is between it:

to see the number between 1/2 and 8/9, we have to:

Times 1/2 by 9 times = 1/2 * 9 = 9/18

Times 8/9 by 2 times = 8/9* 2 = 16/18

So the number between 9/18 and 16/18 would be"

10/18, 11/18, 12/18, 13/18, 14/18, 15/18

Simply some of that, we got:

5/9, 11/18, 2/3, 13/18, 7/9, 15/18

Hope this help you :3

7 0

3 years ago

There are 100 runners entered in a marathon. How many different groups of three runners can finish in first, second, and third?

DIA [1.3K]

Permutations and Every runner except for the one that was 1st could be 2nd hoep this helps

4 0

4 years ago

Complete the table by converting each decimal to a fraction. Show your work. Repeating decimals. 0.2, 0.5, 0.7

Helga [31]

Answers

Part 1 = 2/9

Part 2 =5/9

Part 3 =7/9

Explanation

To convert the a repeating decimals this are the steps;

Part 1

Let x = 0.222222... (i)

10x = 2.222222... (ii)

Subtract equation (i) from equation(ii)

10x = 2.222222....

-x = 0.222222....

9x = 2.00000..

∴ 9x = 2

Divide by 9 both sides;

x = 2/9

Part 2

Let x = 0.5555...

10x = 5.5555...

subtract equation (i) from equation (ii).

10x = 5.5555..

- x = 0.5555..

9x = 5.0000..

∴ 9x = 5

x = 5/9

Part 3

Let x = 0.7777....

10x = 7.7777...

Subtracting equation (i) from equation (ii)

10x = 7.7777...

-x = 0.7777...

9x = 7.000..

∴ 9x = 7

x = 7/9

Pattern noted

When converting the repeating decimals to fraction only one number was repeating. This made the three decimals have the same fraction.

5 0

4 years ago

What do i do please help!

Art [367]

Answer:

Step-by-step explanation:

this is confusing b/c they are asking about two trains traveling at differnt speeds, but.. if you put the speeds together and make one train... imaginary.. ofc... traveling at the speed of both trains combined... when will it be 50 miles from the station?

maybe you can solve that? I'll solve it below.. but.. if you can.. try it now, on your own

below is my answer... don't look until you have solved yours :P

80+70= 150kph

when will this have traveled 50Km?

you may be able to see that it will take 1/3 of an hour to travel 50 km

so 60 minutes times 1/3 = 20 minutes :)

8 0

3 years ago

(3x^2+4x-2)-(4x^2-2x-5)

stiv31 [10]

-x^2+6x+3
hope this helps :)

4 0

3 years ago

Read 2 more answers