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S_A_V [24]
3 years ago
5

Please help Due in 3 Min!

Mathematics
1 answer:
iren2701 [21]3 years ago
7 0
The answer is 32 I really hope this helps with
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Solve 3 ^ (x - 8) = 8 for x using the change of base formula logb y = (log y)/(log b)
Vilka [71]

Answer:

x=3\log_3 (2) +8

Step-by-step explanation:

Here we are using power rule first.

Power rule = The logarithm of an exponential number is the exponent times the logarithm of the base [log(a)^{b}=b\times log(a)].

For the function given.

3^{(x-8)} = 8,using log function both sides.

(x-8)log(3)=log(8)

Now,

(x-8)=\frac{log(8)}{log(3)}

Adding 8 both sides.

x=\frac{log(8)}{log(2)} +8

And we know that 8=2^{3} so we can further write log(8)=log(2^{3})=3log(2)

Then we have x=\frac{3\log(2)}{\log 3} +8.

Now, using change of base formula:

\frac{\log y}{\log b}=\log_b y

So, \frac{\log 2}{\log 3}=\log_3 2

Our final answer is  x=3\log_3 (2) +8.

6 0
3 years ago
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Mary has 5 stamps and buys 150 stamps each week. Nick has no stamps and buy 2 stamps each week. when will Mary have more stamps
vitfil [10]

Answer:

She already does have more than Nick!

Step-by-step explanation:

7 0
3 years ago
FIRST TO ANSWER GETS BRAINLIEST! Find the perimeter
lara31 [8.8K]

Answer:

20x+6

Here u go

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3 years ago
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4 plus the product of 2 and 7<br>please help me
madreJ [45]

The answer is 18. Because 7*2=14+4=18

3 0
3 years ago
If the distance from the Sharks to the dolphins is 12ft, what is the distance from
IceJOKER [234]

Answer:

Step-by-step explanation:

So first we notice that the traingles are similar which makes my work much easier.

27:42 can be simplified to 9:14.

That means x is 28

And sharks to dolphins is 12.

That means the smaller triangle is 27 18 12 and the bigger triangle is 42 28 and x. Try and do it yourself if you can't just comment and I'll help you :)

5 0
2 years ago
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