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2 years ago

Is the mass of one pound of lead greater than less than or equal to one pound of feathers?

Mathematics

1 answer:

mrs_skeptik [129]2 years ago

7 0

Equal to because they are both still a pound in weight :D

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you put $634 into an investment at 6% compounded annually for six years. what will be the balance be at the end of six years?

Norma-Jean [14]

Answer:

The answer would be the following amount $907.92

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2 years ago

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Find the midpoint of the segment with the given endpoints. (9,9) and (6,8)

mars1129 [50]

Answer:

The mid-point is (7.5, 8.5).

Step-by-step explanation:

We are given two points (9,9) and (6,8) as the endpoints for a line segment and we are to find the midpoint of this segment.

We know that the formula for finding the mid point is:

Mid point = $(\frac {x_1 + x_1 }{ 2 } ,\frac { y_1 + y_2} {2} )$

So substituting the given values of the coordinates of the endpoints in the above formula to get:

$= (\frac {9 + 6}{2} , \frac {9 + 8}{2} )$

$= (\frac {15}{2} , \frac {17} {2} )$

$=(7.5, 8.5)$

Therefore, the mid-point is (7.5, 8.5).

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2 years ago

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How do you calculate elapsed time?

Valentin [98]

First tell me what elapsed time is

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3 years ago

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A toy rocket is launched vertically from 5 feet above ground level with an initial velocity of 112 feet per second. The height h

Masja [62]

Answer:

Step-by-step explanation:

a)The height h after t seconds is given by the equation h(t)=-16t^2+112t+5.

Where 5 represents 5feet above the ground and this is the height from which the rocket was launched.

The equation is a quadratic equation. The plot of this equation on a graph would give a parabola whose vertex would be equal to the maximum height travelled by the rocket.

The vertex of the parabola is calculated as follows,

Vertex = -b/2a

From the equation,

a = -16

b = 112

Vertex = - - 112/32= 3.5

So the rocket will attain maximum height at 3.5 seconds.

It will also take 3.5 seconds to reach the ground. This means it will take a total of 3.5 seconds + 3.5 seconds

= 7 seconds to hit the ground.

b) to find time it will take to be 100 feet above the ground,

-16t^2+112t-95 = 0

Using general quadratic equation formula,

a = -16

b = 112

c = -95

t = [-b+/-√b^2-4ac]/2a

t = [ -112 +/-√112^2-4×-16×-95]/16 × -2

= [-112 +/-√12544-6080]/-32

= (-112+80.4)/-32 or (-112-80.4)/-32

t = 0.9875 or t = 6.0125

So it will take 0.9875 or approximately 1 second to be 100 feet above the ground

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2 years ago

I not good at math..please help!

saw5 [17]

The answer is 20%. Brainliest answer me.

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2 years ago

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