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Jlenok [28]
3 years ago
12

Helppppopoop help help help

Mathematics
2 answers:
kozerog [31]3 years ago
6 0

Answer:

Step-by-step explanation:

VOLUME...

1) π*r^2*h

π*(2.5)^2 *h

(π)*(2.5)^2* 6

= 117.8

2) π*r^2*h + 1/2 *[(4/3) · π · r3]

(π)*(3)^2* 3 + 1/2 *[(4/3) · π · 3^3]

        84.8+ 56.5 = 141.41

3) (1/3) π*r^2*h

(1/3) π*3^2*h

3^2 + h^2 = 36

h = sqrt(27) = 5.1

(1/3) π*3^2*5.1

= 48.06

Naily [24]3 years ago
3 0

Answer:

160

Step-by-step explanation:

Hope this helps

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padilas [110]

25 girls and 50 boys!!

49 divided by 7 = 7.

So there were 7 adults.

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4 0
3 years ago
Compute a · (b ✕ c), where a = i − 3j + k, b = 4i + j + k and c = 9i − j + 3k.
grandymaker [24]
\mathbf a=\mathbf i-3\,\mathbf j+\mathbf k
\mathbf b=4\,\mathbf i+\mathbf j+\mathbf k
\mathbf c=9\,\mathbf i-\mathbf j+3\,\mathbf k

\mathbf b\times\mathbf c=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\4&1&1\\9&-1&3\end{vmatrix}=4\,\mathbf i-3\,\mathbf j-13\,\mathbf k

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6 0
3 years ago
Find the height of a right square pyramid that has a rectangular base area of 70 square units and a volume of 140 cubic units.
Lostsunrise [7]

Answer:

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Step-by-step explanation:

V =  {a}^{2} \frac{h}{3} \\  \\ 140  = 70( \frac{h}{3}) \\  \\ 6 = h \\  \\ 140 = 70(2)

I am joyous to assist you anytime.

5 0
4 years ago
(2)/(7):0.6x=(4)/(21):0.25
inysia [295]

Answer:

 =  1.6

Unless you meant to clarify what in the equation you needed, but that is the answer to it.

7 0
3 years ago
Which table represents a direct variation function?
Morgarella [4.7K]

Answer:

the 3rd one

Step-by-step explanation:

i just know

IF UR USERNAME IS A JOKE F U. if its not then i support you

5 0
3 years ago
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