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3 years ago

What is the volume of a cone that has a height of 7 mm and a radius of 3 mm?

1 answer:

7 0

<span>So we want to know the volume V of a cone with a height h=7 mm and of radius r=3 mm rounded to the nearest hundreth. We need the formula for the volume of a cone: V=(1/3)*pi*r^2*h. Now we simply input the numbers and get: V=65.94 mm^2 and that is rounded to the first hundreth.</span>

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Numbers like 10 100 1000 and so on are called

Afina-wow [57]

Powers of ten! is the answer

4 0

3 years ago

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Use the properties of logarithms to prove log, 1000 = log2 10.

Leto [7]

Given:

Consider the equation is:

$\log_81000=\log_210$

To prove:

$\log_81000=\log_210$ by using the properties of logarithms.

Solution:

We have,

$\log_81000=\log_210$

Taking left hand side (LHS), we get

$LHS=\log_81000$

$LHS=\dfrac{\log 1000}{\log 8}$ $\left[\because \log_ab=\dfrac{\log_x a}{\log_x b}\right]$

$LHS=\dfrac{\log (10)^3}{\log 2^3}$

$LHS=\dfrac{3\log 10}{3\log 2}$ $[\because \log x^n=n\log x]$

$LHS=\dfrac{\log 10}{\log 2}$

$LHS=\log_210$ $\left[\because \log_ab=\dfrac{\log_x a}{\log_x b}\right]$

$LHS=RHS$

Hence proved.

6 0

3 years ago

A 2-column table with 3 rows titled Units of Length. Column 1 is labeled Customary System Units with entries 1 inch, 1 foot, 1 m

Komok [63]

Answer:

the answer is b

Step-by-step explanation:

5 0

3 years ago

The perimeter of a notebook is 44 inches the notebook is 10 inches wide how tall is it?

tatyana61 [14]

Answer=36inches tall

Explanation= 44+10= 54
90-54=36in

5 0

3 years ago

What is the measurement 345.067 mg rounded to four significant digits?

Viktor [21]

<span>count four from the first digit to the fourth one. When you see the fourth one, look at the digit after. if it is 5+ then the fourth digit increases by one. if 5- then it stays the same. 6>5 so 0 becomes 1.

Therefore the answer is 345.1mg</span>

4 0

3 years ago

Read 2 more answers