3 years ago

One button is chosen at random from a bag of buttons.

Mathematics

1 answer:

rosijanka [135]3 years ago

4 0

BANANA BANANA BANANA BANANA

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What is the density of a brick

Dahasolnce [82]

While fire clay bricks have a density of 2400 kg/m3, for common red bricks it is 1900 kg/m3 . [

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3 years ago

When an object is thrown upwards with a speed of 64 ft/sec, its height above the ground is given by the function h(t)=−16t2+64t

Svet_ta [14]

Answer:

The object will reach its highest point 0.5 seconds after it has been thrown.

Step-by-step explanation:

The object reaches its maximum height when velocity is equal to zero, the velocity is the derivative of function height. That is:

$v(t) = \frac{d}{dt}h(t)$ (1)

Where $v(t)$ is the velocity of the object at time $t$ , in feet per seconds.

If we know that $h(t) =-16\cdot t^{2}+64\cdot t$ and $v(t) = 0\,\frac{ft}{s}$ , then the time when object reaches its highest point is:

$v(t) = -32\cdot t+64$

$-32\cdot t + 64 = 0$

$t = 0.5\,s$

The object will reach its highest point 0.5 seconds after it has been thrown.

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2 years ago

The angle of elevation of the top of a tree is 60°. If the point of observation is 4m from the foot of the tree. How far is the

inn [45]

Answer:

Step-by-step explanation:

x = hypotenuse since they want the point of observation to the top of the tree

cos 60 = 4/x

x = 4 / cos 60

x = 8m

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3 years ago

Does a polygon usually have more sides or angles?

Arisa [49]

Polygons include
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etc.

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3 years ago

Read 2 more answers

The cost of a pair of jeans was changed from $47 to $42.13. What was the percent change?

zhenek [66]

Answer:

10.36

Step-by-step explanation:

$47 - $42.13 = $4.87
($4.87 ÷ $47) × 100 = 10.36%

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3 years ago