3 years ago

PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPP I WILL GIVE BRAINLIEST

Mathematics

2 answers:

Usimov [2.4K]3 years ago

4 0

Answer:

1,7

Step-by-step explanation:

7x = 9x-2

2 = 2x

x = 1

y = 7

Eddi Din [679]3 years ago

4 0

Answer:

(1,7)

Step-by-step explanation:

okay, since the equations are both equal to y we can set the equations to be equal to each other and solve for x

9x - 2 = 7x

subtract 9x from both sides

-2 = -2x

divide both sides by -2

x = 1

now that we have the x-value we can plug it back in to get a y-value

y = 7x

y = 7(1)

y = 7

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Read 2 more answers

Please solve these equations much appreciated

Reptile [31]

Answer:

Part c) $V=16,500\ m^3$

Part d) $V=93,312\pi\ mm^3$ or $V=292,999.68\ mm^3$

Step-by-step explanation:

Part c) Find the volume of the inverted rectangular pyramid

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}Bh$

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B is the area of the rectangular base

h is the height of pyramid

$B=(60)(15)=900\ m^2$

$h=55\ m$

substitute

$V=\frac{1}{3}(900)(55)$

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Part d) Find the maximum volume of tea in the tea cup

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The volume of cylinder (tea cup) is equal to

$V=\pi r^{2}h$

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$r=36\ mm\\h=72\ mm$

substitute

$V=\pi (36)^{2}(72)$

$V=93,312\pi\ mm^3$ -----> exact value

<em>Find the approximate value</em>

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$\pi =3.14$

$V=93,312(3.14)=292,999.68\ mm^3$

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