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2 years ago

MARKING BRAINLEIST IF CORRECT

Mathematics

2 answers:

Anni [7]2 years ago

8 0

Answer:

A) (-5,0) and (-4,0)...

erma4kov [3.2K]2 years ago

6 0

$\qquad\qquad\huge\underline{{\sf Answer}}♪$

X - intercepts are the points where the curve cuts x - axis ~

for the given curve (parabola), the intercepts are :

$\qquad \sf \dashrightarrow \:(-5,0) \: \: and \: \: (-4, 0)$

The Correct choice is A

$➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖$

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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:

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

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3 years ago

What will be the coordinates of Q?<br> A (-6, -5)<br> B (-5, -6)<br> C (5, 6)<br> D (6, 5)

Svetradugi [14.3K]

Answer:

I Dont understand

Step-by-step explanation:

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3 years ago

Yes help pls giving brainlest

lesya [120]

Answer:

1 and 7/12 hours

Step-by-step explanation:

2 and 1/3 is the whole. You need to subtract 3/4. To bring both of these to the same denominator, multiply each fraction by the others denominator. That means 1/3 is now 4/12 and 3/4 is now 9/12. They can now be subtracted. 2 and 4/12 - 9/12 = 1 and 7/12.

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3 years ago

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Alecsey [184]

Infinity because it's a cubic function with no restricted range or domain

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3 years ago

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Please help with via math I suck at math so plz help... will give brainiest to the person I think gave the best answer.

kati45 [8]

The answer is C because 80-28= 52.