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3 years ago

A cone has a circular base of radius 12cm and a height of 30cm .Find the volume of cone. What is the answer:4250 4225 4552 4520

Mathematics

2 answers:

Natalka [10]3 years ago

3 0

Answer:

4520

Step-by-step explanation:

v= pi^2r times h/3

3.14 times 144

452.16 times 10

which is 4521.6

this is closest to 4520

hope this helps

Alex777 [14]3 years ago

3 0

4520 is the answer to this

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Juli2301 [7.4K]

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3 years ago

Read 2 more answers

CD is perpendicular to AB and passes through point C5, 12).

Aleksandr-060686 [28]

Answer:

x intercept of CD = 17

Step-by-step explanation:

We are given a line AB with its end coordinates. and Another line segment CD which is perpendicular to AB. We have the coordinates of C , and we are asked to find the x intercept of line CD.

For that we need to find the equation of CD

we have coordinates of C , and hence if we have slope of CD we can find equation of CD

Slope of CD can be determine with the help of slope of AB as CD⊥ AB

So, the slope of CD $mCD = -\frac{1}{mAB}$

Hence we start from determining slope of AB

slope is given as

$m= \frac{y_2-y_1}{x_2-x_1}$

$m= \frac{14-(-3)}{7-(-10)}=\frac{17}{17}=1$

Hence $mAB=1$

There fore $mCD=-1$

(∵ Product of Slopes of two perpendicular lines is always -1)

Now we find the equation of CD with the help of slope -1 and coordinates of C(5,12)

$m=\frac{y-y_1}{x-x_1}$

$-1=\frac{y-12}{x-5}$

$-x+5=y-12$

$y=-x+17$

Hence we have our equation , now in order to find the x intercept we keep y = 0 in it and solve for x

$0=-x+17$

$x=17$

Hence the x intercept is 17

8 0

3 years ago

352, 345, 338, ...<br> Find the 43rd term.

Artemon [7]

Answer:

Step-by-step explanation:

first term = a = 352

Common difference = d = second term - first term

= 345 - 352

= (-7)

nth term = a + (n-1)*d

43rd term = 352 + (43-1)*(-7)

= 352 + 42 *(-7)

= 352 - 294

= 58

3 0

3 years ago

What are the answers for 2, 3 , and 4? That’s it

PIT_PIT [208]

Answer:

1. Formula: b * h ÷ 2

12 * 3 = 36 ÷ 2 = 18 in^2

2. Formula: b * h ÷ 2

5 * 8 = 40 ÷ 2 = 20 ft^2

I could only help on two. Hope it helps though! =)

5 0

3 years ago

1.7 degrees Fahrenheit drops every thousand feet. The temperature on the ground is 63.7 Fahrenheit. What will the temperature be

Oksanka [162]

Answer:

The answer to your question is Final temperature = 60.3°F

Step-by-step explanation:

I include the process in the attachment

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3 years ago