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Lisa [10]
3 years ago
6

You flip the same coin 900 mores times (1000 total flips). If half of the 900 additional flips are heads and half are tails, wha

t is the empirical probability of getting a heads for this coin? (505 heads in 1000 flips)
Mathematics
1 answer:
aev [14]3 years ago
5 0

Answer:

CAn i have help and i will help you

Step-by-step explanation:

What does negative 2 over 3 > −1 indicate about the positions of negative 2 over 3 and −1 on the number line?

negative 2 over 3 is located to the right of −1

negative 2 over 3 is located on the left of −1

negative 2 over 3 is located on the right of 0, and −1 is located on the left of 0

negative 2 over 3 is located on the left of 0, and −1 is located on the right of 0

Question 2(Multiple Choice Worth 4 points)

(03.05)

Which set of rational numbers is arranged from least to greatest?

1 over 5, −1.4, negative 1 over 2, 3

3, negative 1 over 2, −1.4, 1 over 5

3, 1 over 5, −1.4, negative 1 over 2

−1.4, negative 1 over 2, 1 over 5, 3

Question 3(Multiple Choice Worth 4 points)

(03.05)

Based on the graph, which inequality is correct for a number that is to the right of -4?

A number line is shown from negative 8 to 8 at increments of 1. A circle is shown at negative 4. The entire portion of the number line to the right of negative 4 is shaded.

2 < −4

−4 > −3

1 < −4

2 > −4

Question 4(Multiple Choice Worth 4 points)

(03.05)

A girl's feet are negative 2 over 4 yards from the surface of a pool. A boy's feet are negative 3 over 4 yards from the surface of the pool. Determine whose feet are closer to the surface.

The girl's feet are closer to the surface of the pool because negative 2 over 4 > negative 3 over 4.

The boy's feet are closer to the surface of the pool because negative 2 over 4 > negative 3 over 4.

The girl's feet are closer to the surface of the pool because negative 2 over 4 < negative 3 over 4.

The boy's feet are closer to the surface of the pool because negative 2 over 4 < negative 3 over 4.

Question 5(Multiple Choice Worth 4 points)

(03.05)

Which inequality best represents that ice cream at −2°C is cooler than ice cream at 4°C?

−2°C < 4°C

−2°C > 4°C

−4°C > 2°C

−4°C < −2°C

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Use the distribution property to rewrite -3(x-2)​
Helga [31]

Answer:

-3x+6

Step-by-step explanation:

When you distribute you multiply -3 by both x and -2

3 0
3 years ago
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Paul and Charlene are 420 miles apart. They start toward each other with Paul driving 16 mph faster than Charlene. They meet in
Thepotemich [5.8K]

Answer:

34 mph.    

Step-by-step explanation:

Let x be speed of Charlene, then speed of Paul will be x+16 as we are given that Paul is driving 16 mph faster than Charlene.

Let y be distance covered by Charlene, then distance covered by Paul will be 420-y.  

Now we will use formula \text{Speed}=\frac{\text{Distance}}{\text{Time}}. Upon using our given information we will get two equation and two unknowns as:  

x+16=\frac{420-y}{5}...(1)

x=\frac{y}{5}...(2)

Upon substituting x=\frac{y}{5} in 1st equation we will get,

\frac{y}{5}+16=\frac{420-y}{5}

Upon multiplying both sides of our equation by 5 we will get,

5(\frac{y}{5}+16)=420-y

5\times\frac{y}{5}+5\times 16=420-y    

y+80=420-y

y+80+y=420-y+y

2y+80=420

2y=420-80

2y=340

y=\frac{340}{2}  

y=170      

Upon substituting y=170 in 2nd equation we will get,

x=\frac{170}{5}

x=34

Therefore, Charlene's speed is 34 miles per hour.


6 0
3 years ago
(ILL GIVE BRAINLIEST!!)<br><br><br> What is friction and when does it occur?
docker41 [41]

Answer:

Friction is a force that opposes motion between any surfaces that are touching. Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. ... Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy

8 0
3 years ago
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Write the equation of the line that is perpendicular to the line y = 2x + 2 and passes through the point (6, 3).
weeeeeb [17]

Answer:

\[y = (-1/2) * x + 6\]

Step-by-step explanation:

Equation of the given line: y=2x+2

Hence the slope of the line is given by 2

Any line which is perpendicular to the given line will have a slope m such that m*2 = -1

Or, \[m = \frac{-1}{2}\]

Only options 2 and 3 satisfy this condition.

The line is also supposed to pass through the point (6,3).

Substituting these values in the option 2:

\[3 = (-1/2) * 6 + 3\]

Or, \[ 3 =0 \] which is false . Hence option 2 is not valid.

Now substituting (6,3) in option 3:

\[3 = (-1/2) * 6 + 6\]

Or, \[ 3 =3 \] which is true . Hence option 3 is the required equation of the line.

5 0
3 years ago
What 8(9+16) plz i need help
Fynjy0 [20]
I think it would be 8*9+8*16 which would be 72+128= 200

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