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cricket20 [7]
3 years ago
14

What is written as a 2log5(5x^3)+(1/3)log5((x^2)+6) single logarithm?

Mathematics
2 answers:
coldgirl [10]3 years ago
8 0

2  \times log_{5}( {5x}^{3} )  + ( \frac{1}{3} ) \times  log_{5}((x {}^{2}) + 6 )

is equals to
log_{5}(25 {x}^{6} \times  \sqrt[3]{x {}^{2} + 6 }  )
svetlana [45]3 years ago
4 0

Answer:  The required expression using single logarithm is \log_5\{25x^6(x^2+6)^\frac{1}{3}\}.

Step-by-step explanation:  We are given to write the following logarithmic expression as a single logarithm :

L=2\log_5(5x^3)+\dfrac{1}{3}\log_5(x^2+6).

We will be using the following properties of logarithms :

(i)~a\log b=\log b^a,\\\\(ii)~\log a+\log b=\log (ab).

We have

L\\\\=2\log_5(5x^3)+\dfrac{1}{3}\log_5(x^2+6)\\\\=\log_5(5x^3)^2+\log_5(x^2+6)^\frac{1}{3}\\\\=\log_5\{(5x^3)^2\times (x^2+6)^\frac{1}{3}\}\\\\=\log_5\{25x^6(x^2+6)^\frac{1}{3}\}.

Thus, the required expression using single logarithm is \log_5\{25x^6(x^2+6)^\frac{1}{3}\}.

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4 The number of laps Jessica runs around the track is proportional to the time she
iragen [17]

Answer:

A. 24 lap/hour.

B. r = 24h

Step-by-step explanation:

Let r be the number laps.

Let h be the time.

From the question given above, the number of laps (r) Jessica runs around the track is proportional to the time (h) she spend running. This can be written as:

r & h

r = Kh

Where:

r is the number of laps.

K is the constant of proportionality.

h is the time.

A. Determination of the constant of proportionality.

With the above formula, we can calculate the value of the constant of proportionality, K as follow:

Number of laps (r) = 12 laps

Time (h) = ½ hour

Constant of proportionality (K) =.?

r = Kh

12 = K × ½

12 = K/2

Cross multiply

K = 12 × 2

K = 24 lap/hour

Therefore, constant of proportionality is

24 lap/hour.

B. Equation for relationship between the number of lap and time. This is illustrated below:

r = Kh

K = 24

r = 24h

Therefore, the equation for relationship between the number of lap and time is r = 24h

7 0
2 years ago
Please help. quickly if possible
Dafna11 [192]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A hot air balloon travels 18miles in 3 hours. At this rate how many miles will the hot air balloon travel in 3/4hour?
Nikolay [14]

Answer:

4,5 miles

Step-by-step explanation:

In 1 hour:    18/3 = 6 miles

6 . 3/4 = 18/4 = 4,5 miles

3 0
2 years ago
A textbook costs $58 and sells for $70. Find the rate of markup based on the selling price.
notka56 [123]
58r=70

r=35/29

r≈1.2069

So the rate was about 1.21 or if you prefer about 20.7%
7 0
3 years ago
Is s=28-8t proportional
iren2701 [21]

Answer yes

Step-by-step explanation:

7 0
3 years ago
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