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andre [41]
3 years ago
7

Please help correct answer will be marked brainliest answer :)

Mathematics
1 answer:
malfutka [58]3 years ago
3 0

Answer:

9 parallelograms

Step-by-step explanation:

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It is B because the equation for slope is x/y and when x=1 y=2 so it is 1/2
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Does this graph show a function?explain how you know.
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Work out the volume of the shape​
pashok25 [27]

Answer:

\large\boxed{V=\dfrac{1,421\pi}{3}\ cm^3}

Step-by-step explanation:

We have the cone and the half-sphere.

The formula of a volume of a cone:

V_c=\dfrac{1}{3}\pi r^2H

r - radius

H - height

We have r = 7cm and H = (22-7)cm=15cm. Substitute:

V_c=\dfrac{1}{3}\pi(7^2)(15)=\dfrac{1}{3}\pi(49)(15)=\dfrac{735\pi}{3}\ cm^3

The formula of a volume of a sphere:

V_s=\dfrac{4}{3}\pi R^3

R - radius

Therefore the formula of a volume of a half-sphere:

V_{hs}=\dfrac{1}{2}\cdot\dfrac{4}{3}\pi R^3=\dfrac{2}{3}\pi R^3

We have R = 7cm. Substitute:

V_{hs}=\dfrac{2}{3}\pi(7^3)=\dfrac{2}{3}\pi(343)=\dfrac{686\pi}{3}\ cm^3

The volume of the given shape:

V=V_c+V_{hs}

Substitute:

V=\dfrac{735\pi}{3}+\dfrac{686\pi}{3}=\dfrac{1,421\pi}{3}\ cm^3

7 0
3 years ago
Need your Help please!!
lianna [129]

Answer:

4.

f(x) = (x + 2)(x + 1)(x - 3) = x^3 - 7·x - 6

a = 0 ; b = -7 ; c = -6

5.

a = -3 ∧ b = -2 ∧ c = -3


3 0
3 years ago
Convert $98.60 to pounds
MariettaO [177]

Answer:

71.18 pounds

Step-by-step explanation: HOPE THIS HELPS

7 0
3 years ago
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