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andreev551 [17]
3 years ago
8

0.3x +y = 7 represents a linear function

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0
Yes it represents a linear function.
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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
Which is the best estimate for √34 to the nearest whole number​
lina2011 [118]

Answer:Other than using a calculator to get an approximate value (

5.83

) for  

√

34

,  

√

34

can not be simplified

Step-by-step explanation:The only factors (

>

1

) of  

34

are  

2

and  

17

Since neither of these are a square,  

√

34

has no simplification.

3 0
2 years ago
Please help me (not a test question)
lara [203]

Answer:

Yes

Step-by-step explanation:

4 x 3 = 12

5 x 3 = 15

4 0
2 years ago
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Fill in the blank (no word bank)
anastassius [24]

Answer:

1.Angle B

2.Angle C

If It Is Wronge Sory

8 0
2 years ago
PLEASE HELP ME ASAP!!!!!
melisa1 [442]

Answer:

4.5

Step-by-step explanation:

7 0
3 years ago
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