3 years ago

Pls help meeee its a khan academy

Mathematics

2 answers:

otez555 [7]3 years ago

8 0

The correct answer is w=1.5

olasank [31]3 years ago

3 0

Answer:

3w-9/2

Step-by-step explanation:

i hope this was helpful and correct let me know if you need the steps!! ^^

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Solve 4^x+2 = 12 for x using the change of base formula log base b of y equals log y over log b.

valentinak56 [21]

The value of x is 1.66

Step-by-step explanation:

Let use revise the rules of exponential and logarithmic equations

1. If y = $b^{x}$ , then $log_{b}(y)=x$

2. $log_{b}(y) = \frac{log(y)}{log(b)}$

Use the rules above to solve the problem

∵ $4^{x}+2=12$

- Subtract 2 from both sides

∴ $4^{x}=10$

change the exponential equation to logarithmic equation

∴ $log_{4}(10)=x$

∵ $log_{4}(10) = \frac{log(10)}{log(4)}$

∴ x = $\frac{log(10)}{log(4)}$

∴ x = 1.66

The value of x is 1.66

Learn more:

You can learn more about logarithmic function in brainly.com/question/10633485

#LearnwithBrainly

6 0

4 years ago

Help asap pls and ty

BabaBlast [244]

The answer I got is (-6,-2) the x value is -6

7 0

3 years ago

Read 2 more answers

Pls help fast fast fast!!!

leonid [27]

Answer:

Jesse can pack 18 books.

Step-by-step explanation:

2.4*18=43.2+5.7==48.9

you cant fit more than fifty becaue 48.9+2.4=51.3, thus 18 is your answer

3 0

3 years ago

Lauren wants to save 30% of her weekly paycheck. How much will she save each week if her paycheck is $150 a week?

Vlad1618 [11]

She will save $45 dollars a week the working is
150÷10
=15
30%=15×3
$45

3 0

3 years ago

(2-4d)(2+4d)=0<br> Help please, Its the 0 property

lianna [129]

Answer:

d1=-1/2,d2=1/2

Step-by-step explanation:

hope this helps

4 0

3 years ago