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3 years ago

Which events are independent? Select three options.

Mathematics

2 answers:

Ket [755]3 years ago

4 0

Answer:

Roll a number cube, and then roll the same number cube again.

Flip a coin, and then flip the coin a second time.

Draw a card from a deck, replace it, and then draw a second card.

Explanation:

These events are independant, because the two factors on their own hold the same probability. Dependant events would mean that something happened previously to alter the second factors probability.

Art [367]3 years ago

3 0

Answer:

1, 2, 4

Step-by-step explanation:

took the test on edg

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3 distance questions:

zhuklara [117]

This one actually made me think. I like your teacher.

2h 30min (2.5)×30mph=75m
1h 30min (1.5)x50mph=75m

1 hour longer when driving to Arkansas

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11h 12min (11.2)×300mph=3360m
4h 48min (4.8)×700mph=3360m

11h 12min from NY to Paris.

7 0

3 years ago

What type of polynomial is this

Crank

Answer:

trinomial..............

5 0

3 years ago

Please help! 50 POINTS!!!

expeople1 [14]

Answer:

f(x) = 2/3 x +3

Step-by-step explanation:

We know the y intercept ( where it crosses the y axis) is 3

We can calculate the slope from 2 points (-3,1) and (0,3)

Slope = (y2-y1)/(x2-x1)

= (3-1)/(0--3)

= (3-1)/(0+3)

= (2/3)

The slope is 2/3

Since we know the slope and the y intercept, we can use the slope intercept form

y= mx+b

y = 2/3 x+3

f(x) = 2/3 x +3

5 0

3 years ago

Read 2 more answers

The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a ra

n200080 [17]

Answer:

Rate of change of the area of the rectangle at that instant = 7 cm²/hr.

Step-by-step explanation:

Area of rectangle = Height x Width

A = hw

The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a rate of 4 centimeters per hour.

$\texttt{Rate of change of height = }\frac{dh}{dt}=3cm/hr\\\\\texttt{Rate of change of width = }\frac{dw}{dt}=-4cm/hr$

Differentiating area with respect to time,

$\frac{dA}{dt}=h\frac{dw}{dt}+w\frac{dh}{dt}$

We need to find rate of change of area when the height is 5 centimeters and the width is 9 centimeters.

$\frac{dA}{dt}=h\frac{dw}{dt}+w\frac{dh}{dt}\\\\\frac{dA}{dt}=5\times (-4)+9\times 3=-20+27=7cm^2/hr$

Rate of change of the area of the rectangle at that instant = 7 cm²/hr.

5 0

4 years ago

Solve the linear equation 1/2x+10=1/4x+54<br><br><br>i can never do the fraction ones.

Norma-Jean [14]

I think x = 1/176
1/2x + 10 = - 1/4x + 54
1/2x + 10 = - 1/4x + 54, x 0
1/2x - 1/4x = 54 - 10
2-1 over 4x = 44
1/4x = 44
1 = 176x
x = 1/176
I could be wrong.

5 0

3 years ago

Read 2 more answers