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3 years ago

Please help me, i dont get it :(

Mathematics

1 answer:

Leya [2.2K]3 years ago

3 0

Answer: B, D, and E

Step-by-step explanation: 20% of 45 equals 9 D, D, and E all equal 9

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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

3 years ago

A standard-size bass drum has a diameter of 22 inches and is 18 inches deep. Find the volume of this drum

Lena [83]

Answer:

V=1,244.071

Step-by-step explanation:

I put the answer in decimal form and rounded up from .0706, but pi form in included in the pic. I hope this helped! Please leave Brainliest if it did and is right.

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3 years ago

What is the solution to the inequality 10x + 18 < -2

solong [7]

<h3>Answer: x < -2, choice B</h3>

===========================================

Work Shown:

10x + 18 < -2

10x + 18-18 < -2-18 ... subtract 18 from both sides

10x < -20

10x/10 < -20/10 ... divide both sides by 10

x < -2

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3 years ago

What is the square root of 3.24

Mademuasel [1]

The square root of 3.24 is 1.8

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3 years ago

Which system of equations does this graph represent?

lesya [120]

Answer:Two solution

Step-by-step explanation:

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2 years ago