4 years ago

For which intervals is the function positive? Select each correct answer.

Mathematics

1 answer:

lys-0071 [83]4 years ago

4 0

Answer:

(-infinity, -2) and (0,4)

Step-by-step explanation:

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An object is launched at 28 meters per second (m/s) from a 336-meter tall platform. The equation for the object's height s at ti

kondaur [170]

Answer:343 m

Step-by-step explanation:

Given

launch velocity of object is $u=28\ m/s$

height of Platform $h=336\ m$

height of object is given by

$s(t)=-7t^2+14t+336$

For maximum height velocity of object is zero

i.e. $\frac{ds}{dt}=0$

$\frac{ds}{dt}=-14t+14+0=0$

$t=\frac{14}{14}=1\ s$

Therefore after 1 sec object achieves maximum height

$s(1)=-7(1)+14(1)+336$

$s(1)=343\ m$

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4 years ago

A circle has a diameter of 32in. Find the circumference of the circle to the nearest tenth.

VARVARA [1.3K]

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3 years ago

A house and a lot are appraised at 212,400. If the value of the house is five times the value of the lot, how much Is the house

seropon [69]

If the lot is 5 times more than there are 6 amounts that are the same that add up to be 212,400. so 212,400/6 is 35,400. since the house is 5 times more than the lot we take 35,400 and multiply it by 5 which is 177,000 the value of the house. We can check our answer by adding 35,400 to our 177,000 and we get 212400

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3 years ago

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Need help please fast and thanks.

Olenka [21]

Answer:

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Step-by-step explanation:

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