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3 years ago

A triangle drawn on a map has sides of lengths 9 cm, 12 cm, and 15 cm. The shortest of the

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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Consider a system with one component that is subject to failure, and suppose that we have 120 copies of the component. Suppose f

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2 years ago

Due to changing wind conditions, a pilot is able to fly 150 mph for the first third of the flying time of a trip, 175 mph for th

Tema [17]

Answer:

172 mph

Step-by-step explanation:

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2 years ago

Read 2 more answers

A square has a perimeter of 60ft what is the length of each side

Mama L [17]

Answer:

15 ft

Basic fact:

<em>a square is a quadrilateral shape that has all sides of the same length and all the angles are the same</em>

Step-by-step explanation:

using the fact above, we know that there are 4 sides of the same length

to find the length of one side we have to do

60/4

=15

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2 years ago

What is the perimeter of the rectangle? Area =33 sq m, width=3 , length=???

NNADVOKAT [17]

Answer:

the length = eleven meters.

Step-by-step explanation:

area divided by width.

33/3 = 11.

3 0

2 years ago

In a sewage treatment plant, a large concrete tank initially contains 440,000 liters of liquid and 10,000 kg of fine suspended s

viva [34]

Answer:

$Concentration = 8.26kg/m^3$

Step-by-step explanation:

Given

$V = 440000L$ --- volume of tank

$m = 10,000 kg$ --- solid mass

$r = 40000L/hr$ --- outflow rate

Required

Determine the concentration at the end of 4 hours

First, calculate the amount of liquid that has been replaced at the end of the 4 hours.

$Amount = r * Time$

$Amount = 40000L/hr * 4hr$

$Amount = 40000L * 4$

$Amount = 160000L$

This implies that, over the 4 hours; The tank has 160000 liters of liquid out of 440000 liters were replaced

Calculate the ratio of the liquid replaced.

$Ratio = \frac{Amount}{Volume}$

$Ratio = \frac{160000L}{440000L}$

$Ratio = \frac{16}{44}$

$Ratio = \frac{4}{11}$

Next, calculate the amount of solid left.

$Amount (Solid)= Ratio * m$

$Amount (Solid)= \frac{4}{11} * 10000kg$

$Amount (Solid)= \frac{40000}{11}kg$

$Amount (Solid)= 3636kg$

Lastly, the concentration is calculated as:

$Concentration = \frac{Amount (Solid)}{Volume}$

$Concentration = \frac{3636kg}{440000L}$

Convert L to cubic meters

$Concentration = \frac{3636kg}{440000* 0.001m^3}$

$Concentration = \frac{3636kg}{440m^3}$

$Concentration = 8.26kg/m^3$

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2 years ago