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3 years ago

3 men painting a house take 7's

Mathematics

1 answer:

iVinArrow [24]3 years ago

7 0

Answer:

21 days

Step-by-step explanation:

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the figure is made up of a cylinder and a half sphere what is the volume of the composite figure use 3.14 for pi round to the ne

natka813 [3]

Answer:

485.9 mm³

Step-by-step explanation:

The volume of a sphere is 4/3 π r³. So the volume of a hemisphere is half of that:

V = 128π/3

The formula for the volume of a cylinder is V = Bh or V = πr²h .

The radius of the cylinder is 4mm and the height is 7mm

Substitute 4 for r and 7 for h in the formula V = πr²h .

V = 112π

Since the figure is made up of a hemisphere and cylinder so volume will be sum of these two shapes

= 485.9 mm³

7 0

3 years ago

A commercial aircraft gets the best fuel efficiency if it operates at a minimum altitude of 29,000 feet and a maximum altitude o

aliya0001 [1]

Answer:

$x\geq 29,000$ and $x\leq 41,000$

Step-by-step explanation:

Let x be the altitude of a commercial aircraft

=>The expression " A minimum altitude of 29,000 feet" is equal to

$x\geq 29,000$

All real numbers greater than or equal to 29,000 ft

=>The expression " A maximum altitude of 41,000 feet" is equal to $x\leq 41,000$

All real numbers less than or equal to 41,000 ft

therefore, The compound inequality is equal to

$x\geq 29,000$ and $x\leq 41,000$

All real numbers greater than or equal to 29,000 ft and less than or equal to 41,000 ft

The solution is the interval [29,000,41,000]

8 0

4 years ago

How do I solve -5/8 - (-1/8 - 1/2)

lorasvet [3.4K]

Answer answer answer answer

5 0

3 years ago

Find the measure of the supplement of the angle.

Tasya [4]

If they are supplements the angles add up to 180

So to find this one
180 - 37.6 = 142.4

7 0

3 years ago

Read 2 more answers

Set his alarm with a probability of 0.10. If he sets the alarm, it will wake him on time to make his first class with a probabil

Tomtit [17]

Answer:

C) 0.880

B) 0.075

Step-by-step explanation:

If the professor forgets to set the alarm

Probability = 0.1,

Wakes up in time probability = 0.25.

If the professor sets the alarm

Probability = 1 - 0.1 = 0.9

Wake up in time probability = 0.95.

A.)

The probability that professor Moore wakes up in time to make his first class tomorrow

Probability = ( Forgets to set alarm probability x Wakes up in time )+ ( Sets the alarm probability x Wakes up in time ) = ( 0.1 x 0.25 ) + ( 0.9 + 0.95 ) = 0.88

B.)

Late in the class

Set the Alarm Probability = 0.1

Wakes up late probability = 1 - 0.25 = 0.75

Professor Sets the alarm probability = Set the Alarm Probability x Wakes up late probability = 0.1 x 0.75 = 0.075

3 0

4 years ago