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Rashid [163]
3 years ago
6

Help me please ill mark brainliest please be correct

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
8 0
The answer to this is 5
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1/5+x+2/3=1 PLEASE HELP
schepotkina [342]

Answer:

x=2/15

Step-by-step explanation:

1/5+x+2/3=1

3/15+x+10/15=15/15

13/15+x=15/15

x=2/15

3 0
3 years ago
Read 2 more answers
Solve 9^x + 4 = 11 for x using the change of base formula log base b of y equals log y over log b.
Sauron [17]

Answer:

If you meant 9^x+4=11, then the answer is approximately 0.866.

If you meant 9^{x+4}=11, then the answer is approximately -2.909 which looks like what you meant based on the choices.

Step-by-step explanation:

9^x+4=11

First step is to get the exponential part by itself. The part that has the variable exponent which is the 9^x term.

To do this we need to subtract 4 on both sides:

9^x=11-4

Simplify:

9^x=7

The equivalent logarithmic form is:

\log_9(7)=x

I always say to myself the logarithm is the exponent that is how I know what to put opposite the side containing the log.

Anyways if you don't have options for computing \log_b(a) in your calculator you need to use the change of base formula.

\frac{\log(7)}{\log(9)}=x

So x \approx 0.8856

I don't see this as a choice so maybe you actually meant the following equation:

9^{x+4}=11

Let's see if this is the correct interpretation.

So the exponential part is already isolated.

So we just need to put in the equivalent logarithmic form:

\log_9(11)=x+4

Now we subtract 4 on both sides:

\log_9(11)-4=x

Again if you don't have the option for computing \log_b(a) in your calculator, you will have to use the change of base formula:

\frac{\log(11)}{\log(9)}-4=x

x \approx -2.909

6 0
3 years ago
Please help. I'm desperate.
netineya [11]

Answer:

3.5x

3x+25=3.5x

Step-by-step explanation:

hope this helps

7 0
3 years ago
Read 2 more answers
What is true of the type of angle in this lesson? It measures half the sum of the arc it intercepts. It measures twice the sum o
Karolina [17]

Answer:

Step-by-step explanation:

Answer: it is C because it is true of the type of angle in this lessonc. It measures half the difference of the arcs it intercepts.

7 0
3 years ago
Pls help will give Brainlyist
kvasek [131]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
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