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2 years ago

If the edge length of a cube is 5 cm. , then the sum of all edges =

Mathematics

1 answer:

pentagon [3]2 years ago

6 0

Answer:

8*5 = 40

Step-by-step explanation:

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If log2 5 = k, determine an expression for log32 5 in terms of k.

lukranit [14]

Answer:

$log_3_2(5)=\frac{1}{5} k$

Step-by-step explanation:

Let's start by using change of base property:

$log_b(x)=\frac{log_a(x)}{log_a(b)}$

So, for $log_2(5)$

$log_2(5)=k=\frac{log(5)}{log(2)}\hspace{10}(1)$

Now, using change of base for $log_3_2(5)$

$log_3_2(5)=\frac{log(5)}{log(32)}$

You can express $32$ as:

$2^5$

Using reduction of power property:

$log_z(x^y)=ylog_z(x)$

$log(32)=log(2^5)=5log(2)$

Therefore:

$log_3_2(5)=\frac{log(5)}{5*log(2)}=\frac{1}{5} \frac{log(5)}{log(2)}\hspace{10}(2)$

As you can see the only difference between (1) and (2) is the coefficient $\frac{1}{5}$ :

So:

$\frac{log(5)}{log(2)} =k\\$

$log_3_2(5)=\frac{1}{5} \frac{log(5)}{log(2)} =\frac{1}{5} k$

6 0

2 years ago

Yesterday, Kevin had m baseball cards. Today, he gave 9 away. Using m, write an expression for the number of cards Kevin left

Scorpion4ik [409]

Answer:

m-9

Step-by-step explanation:

m represents how much cards he used to have he gave away 9 so u subtract

5 0

2 years ago

Please help me with this

nevsk [136]

F is the answer to this question

6 0

3 years ago

How do I get the answer for N x 4/5 = 3/4

agasfer [191]

nx4/5=3/4

1/5nx^4x^4/5=3/4x^4/5
Answer is n=15/4x4

8 0

2 years ago

One number exceeds another by 24. The sum of the numbers is 58. What are the numbers?

Anna35 [415]

X + x + 24 = 58
x = (58-24)/2=17
the first number is 17 and the second number is the sum of 17 and 28. Finding it has been left as an exercise for the reader.

3 0

2 years ago

If the edge length of a cube is 5 cm. , then the sum of all edges =​

If the edge length of a cube is 5 cm. , then the sum of all edges =