3 years ago

Consider this equation: -3x - 5 + 2x = 6

Mathematics

1 answer:

Blababa [14]3 years ago

6 0

It’s a I had the same question

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<3 Help! A teacher buys 8 packs of orange erasers

Digiron [165]

Answer:

8*24+6*28=360

Step-by-step explanation:

have a nice day :D

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3 years ago

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Jelly beans cost $0.80 per pound. Howard buys 4 1/2 pounds of jellybeans for himself and 1 pound for his friend. There is a 5% s

Lelu [443]

Answer:

$4.62

Step-by-step explanation:

5.5*.80=4.4

4.4*1.05=4.62

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3 years ago

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A hemispherical tank is filled with water and has a diameter of 14 feet. If water

tigry1 [53]

Answer:

$44,826.72\ \text{pounds}$

Step-by-step explanation:

Given that,

The diameter of a hemispherical tank= 14 feet

Radius, r = 7 feet

water

Water weighs 62.4 pounds per cubic foot.

We need to find the total weight of the water in a full tank to the nearest pound.

The volume of the hemisphere is given by :

$V=\dfrac{2}{3}\pi r^3\\\\V=\dfrac{2}{3}\pi \times (7)^3\\\\V=718.377\ \text{feet}^3$

If water weighs 62.4 pounds per cubic foot, it means

$V=718.377\times 62.4\\\\V=44,826.72\ \text{pounds}$

So, the total weight of the water is $44,826.72\ \text{pounds}$ .

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3 years ago

an underground mine elevator reaches a total depth of 99 meters. it descends 17% of the total distance every minute. how many me

malfutka [58]

17% of 99 is 16.83. Since that's only the distance it goes in one minute we have to multiply that by 3. 16.83 × 3 = 50.49. Since the elevator is moving down then it will be negative. The answer will be -50.49 meters.

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4 years ago

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Find a cubic polynomial whose zeros are 1/2,1 and -3.

Alexxx [7]

Answer:

2x³+3x²-8x+3

Step-by-step explanation:

So we know x=½,x=1 and x=-3

Then (2x-1)(x-1)(x+3) are the factors

(2x-1)[(x²+3x-x-3)]

(2x-1)[(x²+2x-3)]

2x³+4x²-6x-x²-2x+3

2x³+3x²-8x+3

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2 years ago