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3 years ago

7

A radius of the base cone is 3cm and altitude is 9cm calculate the volume.

1 answer:

slega [8]3 years ago

6 0

$\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=\stackrel{altitude}{height}\\ \cline{1-1} r=3\\ h=9 \end{cases}\implies V=\cfrac{\pi (3)^2(9)}{3}\implies V=27\pi \implies V\approx 84.8$

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How many atoms are in the given sample 214.1 g of Vanadium

lord [1]

Answer:

The atomic weight (or atomic mass) of Vanadium is 50.9415 which means that a "mole" of Vanadium atoms (6.02 x 10^23 atoms) will have a mass of 50.9415 grams. So, 214.1 grams of Vanadium would have

(214.1 / 50.9415) * (6.02 x 10^23) = 2.530 x 10^24 atoms

Step-by-step explanation:

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2 years ago

Based on the graph, which statements about the points could be true? Check all that apply.

aliina [53]

Answer:

A. Point D could be the image of B.

D is up and to the right of B, so yes. Select choice A

B. Point C could be the image of A.

C is below A, so no

C. Point E could be the image of C.

E is up and to the right from C so yes, Select choice C

D. Point D could be the image of A.

D is down and to the right of A so no.

E. Point E could be the image of B.

E is up and to the right of B so yes. Select choice E

F. Point C could be the image of E.

No C is down and to the left of E.

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Step-by-step explanation:

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2 years ago

How do you simplify 1/5(10x-25)

kozerog [31]

Answer:2x-5

Step-by-step explanation:

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3 years ago

Read 2 more answers

Which equation is equivalent to 2x + 10 = 67<br> 2x = 4<br> x + 5 = 3<br> x + 10 = 3<br> 2x + 6 = 10

Julli [10]

Well, ....... X=57/2 or 28.5 but not are equivalent

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3 years ago

The radius of a circular plate is 12 centimeters. What is the area, in square centimeters, of this plate? Write your Anwer using

lesya [120]

Answer:

The area of circular plate is <u>144π square centimeters</u>.

Step-by-step explanation :

<h3><u>Solution</u> :</h3>

Here, we have given that the radius of circular plate is 12 centimeters.

So, finding the area of circular plate by substituting the values in the formula :

$\longrightarrow{\pmb{\sf{Area_{(Circle)} = \pi{r}^{2}}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi{(12)}^{2}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi{(12 \times 12)}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi{(144)}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi \times 144}}$

$\longrightarrow{\sf{Area_{(Circle)} = 144\pi}}$

$\star{\underline{\boxed{\frak{\purple{Area_{(Circle)} = 144\pi\: {cm}^{2}}}}}}$

Hence, the area of circular plate is 144π square centimeters.

$\rule{300}{2.5}$

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2 years ago