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2 years ago

HELPPPP MMEEE PLEASE

Mathematics

2 answers:

vlada-n [284]2 years ago

5 0

Answer:

x2 and 7x

Step-by-step explanation:

thats correct

x2 + 7x =18

erica [24]2 years ago

4 0

Answer:

The zeroes of f(x) are -9 and 2

hope it helps you

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Step-by-step explanation:

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a village having a population of 4000, requires 150 litres of water per head per day. it has a tank measuring 20m x 15m x 6m. fo

allochka39001 [22]

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Solution:

Given that, village having a population of 4000, requires 150 litres of water per head per day

Let us first find the volume of tank

The tank measuring 20m x 15m x 6m

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$volume\ of\ tank = length \times breadth \times height$

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Thus volume of tank is 1800 cubic meter

From given,

Water required per person per day = 150 liters

Therefore, water required for 4000 people per day is:

$\rightarrow 4000 \times 150 = 600000 \text{ liters }$

Convert to meters

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How many days will the water of this tank last?

$\text{Number of days water will last } = \frac{\text{volume of tank}}{\text{total water required per day}}$

$\text{Number of days water will last } = \frac{1800}{600} = 3$

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3 years ago

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