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2 years ago

PLZZzzzzz Help me ASAP!!!

Mathematics

2 answers:

ziro4ka [17]2 years ago

8 0

Answer:

The estimate is 217.5.

andreyandreev [35.5K]2 years ago

3 0

Answer:

The barometric height at sea level is 76 cm of mercury while that a point on a highland is 74 cm of mercury. Determine the altitude of the mercury.(Take g as 10 N/kg, the density of mercury 13600 kg/3m and density of air is 1.25 kg/m3)

THe answer is 217.5m

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Wittaler [7]

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Answer is A

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3 years ago

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Is the given function continuous at x=1?

rusak2 [61]

Answer:

The answer is "Option C".

Step-by-step explanation:

Given:

$\to f(x)=2x^2-3x+1\\\\when \ x=1\\\\\to f(1)= 2(1)^2-3(1)+1\\\\\to f(1)= 2(1)-3+1\\\\\to f(1)= 2-3+1\\\\\to f(1)=-1+1\\\\\to f(1)=0$

That's why choice C is correct.

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2 years ago

Another submarine descent can be represented as y= -240 x where y is the elevation and x is time in hours. How long will it take

Juli2301 [7.4K]

Answer:e

Step-by-step explanation:

The equation for the submarine is given as y =-240x

Where y is the distance of the descent

x is the time in hours

and -240 is the rate of distance per unit time

To calculate how long it will take this submarine to reach the descent

x = y /-240

8 0

3 years ago

On Monday, 218 students went on a trip to the zoo. All 5 buses were filled and 8 students

galina1969 [7]

Answer:

Their were 42 kids on each bus.

Step-by-step explanation:

You have to divide the number of kids(210) by the number of buses.

7 0

2 years ago

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Given the angles inscribed in the circle, find m ∠ DBC.

Cloud [144]

Answer:

m∠DBC = 51°

Step-by-step explanation:

Circle Theorem vocabulary

Chord: A straight line joining two points on the circle.
Inscribed angle: The angle formed when two chords meet at one point on a circle.
Intercepted arc: The arc that is between the endpoints of the chords that form the inscribed angle.

Inscribed Angle Theorem

The measure of an inscribed angle is half the measure of the intercepted arc.

Therefore:

$\sf \implies \angle DBC=\dfrac{1}{2}\:\overset{\frown}{BC}$