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3 years ago

30 POINTS!!!

2 answers:

6 0

Dependent one:Pulling two cards one after the other,from the same deck of cards
Independent one: Pulling one card,then replacing it and shuffling the deck,then pulling another card.You can also pull 2 cards from different decks

Nata [24]3 years ago

4 0

Answer:

$\boxed{\mathrm{view \: explanation}}$

Step-by-step explanation:

A dependent event can be drawing two cards from a deck without replacement.

An independent event can be drawing two cards from a deck

with replacement.

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A Ferris wheel 50ft in diameter makes one revolution every 40sec. If the center of the wheel is 30ft above the ground, how long

aleksklad [387]

Answer:

The rider is 15.91 seconds 50 ft above the ground after reaching the low point

Step-by-step explanation:

We can evaluate the angle α

using trigonometry applied to the orange small triangle with height 50-30 = 20 ft and hypotenuse equal to the radius r = 25ft

Now

$20 = \frac{25}{sin(\alpha)}$

$\alpha = arcsin{\frac{20}{25}$

$\alpha = 53.13^{\circ}$

So 50 ft of height corresponds to the total angle:

$90^{\circ} =53.13^{\circ} = 143.13 6^{\circ}$ = 2.498 radians

Now the angular velocity

$\omega = \frac{2\pi}{T}$

$\omega = \frac{2 \pi}{40}$

$\omega =0.157rad/s$

To describe 2.498 rad it will take:

$t = \frac{2.498}{0.157}$

t = 15.91 s

6 0

3 years ago

A box was measured with a degree of accuracy to the nearest 2cm; 24cm × 24cm × 20cm. What is the smallest possible volume of the

Strike441 [17]

Each measurement is accurate to 2cm so they can each be “off” by 2. Since we want the smallest possible volume let’s assume each is actually 2 less than what is given.

The sides would then measure: 22, 22 and 18cm respectively. We obtain the volume by multiplying length, width and height...the three values given.

Thus the smallest volume is 22x22x18=8,712 cm^3

4 0

4 years ago

Read 2 more answers

The vista marina rents boats for $25 per hour . In addition to the rental fee , there is a $12 charge for fuel . Is the number o

Elena-2011 [213]

No, because the fuel fee does not correlAte to the amount of time that you have it.

8 0

4 years ago

Multiply and simplify. y^3 . y^5 . y^-2 .y<br> A. y^-4<br> B. 1/y^4<br> C. y^-5<br> D. 1/ y^3

drek231 [11]

Answer:

y^7

Step-by-step explanation:

y^3 . y^5 . y^-2 . y

= y^3 . y^5 . y^-2 . y^1

= y^( 3 + 5 - 2 + 1 )

= y^( 3 + 5 + 1 - 2 )

= y^( 9 - 2 )

= y^7

7 0

3 years ago

Point A is inside triangle E D F. Lines are drawn from the points of the triangle to point A. Lines are drawn from point A to th

Crazy boy [7]

Answer:

Option B. 3 is the answer.

Step-by-step explanation:

To draw a circumcenter of a triangle we draw the perpendicular bisectors of the the sides of the triangle first.

Intersection point of these perpendiculars drawn is the circumcenter of the circle.

Distances of the circumcenter to the vertices are same, that means distance of circumcenter from the vertex is the radius of the circle.

Therefore, length of AE and AD will be same in measure.

AE = AD

2n + 4 = 10

2n = 10 - 4

2n = 6

n = 3

Therefore, Option B. 3 is the answer.

5 0

3 years ago