Jill flipped a coin 40 times. The coin landed as heads 28 times and tails 12 times. Based on her results, which of the following is true?
A. If she flips the coin 20 more times, it will land as heads 14 times.
B. The next time she flips the coin it will land as heads.
C. The theoretical probability of a coin landing as heads is greater than her results.
D.The experimental probability of the coin landing as heads was 7 to 10.​

Answer:

i thought it would be - B. ULTRAVIOLET ray

Answer:

5:1

Step-by-step explanation:

Divide by 40

The answer would be B. 1.645 because 8.225/5=1.645

Hope this helps

Have a great day/night

Feel free to ask any questions

Answer:

-65

Step-by-step explanation:

h + 28 = -37

    -28    -28

        h = -65

Option (A) ​7x+21 is the binomial as it has two terms option (A) is correct.

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]

We have shown some expressions:

Binomial has two terms

A. 7x+21

It is a binomial.

B. 3/x

It is not a binomial.

C. 8x²+6x+5

It is trinomial as it has three terms

D. 19x⁴

It is monomial as it has only terms.

Thus, option (A) ​7x+21 is the binomial as it has two terms option (A) is correct.

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Answer:

x>4

Step-by-step explanation:

16+5x>x+32

5x>x+16

4x>16

x>4

Answer: answer my question

Step-by-step explanation:

Answer:

$40.25

Step-by-step explanation:

15% = 0.15, so multiply 35 * 0.15 = 5.25 to get the tip.

Since the answer is asking for both the tip and the cost, add 35 + 5.25, which gives the answer $40.25

Answer:

yes

Step-by-step explanation:

5(3x+4)

5*3=15

5*4=20

15x+20

Answer:

c

Step-by-step explanation:

7.5 + 7.5 + 4.5 +4.5 = 24

See the attached picture

Answer:

you cant

Step-by-step explanation:

its already simplified from the way its written

b(4a + 13c) is the simplified form of the expression 4ab + 13bc  

To simplify the expression 4ab + 13bc, we can factor out the common term "b" from both terms:

4ab + 13bc = b(4a + 13c)

By factoring out the common term "b", we obtain the simplified form b(4a + 13c).

This represents the original expression in a more concise and factored form.

Hence, the simplified form of the expression 4ab + 13bc  is  b(4a + 13c) by taking the common term b

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Answer:

$62.bope this helpsjensbdnd

Answer:

[tex]angle \: abc = \\ 4x + 2x = 180 \\ 6x = 180 \\ x = 30 \\ angle \: dbc = 2x \\ = 2 \times 30 \\ = 60[/tex]

Answer:

8,-1...............................

Answer:

A

Step-by-step explanation:

I finished the question and got it right

Graph is a way to represent a lot of data in a visual formal. The graph that best represents the student's walk is graph A.

A graph is a way to represent a lot of data in such a visual formal that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.

As we can see that the y-axis of the graph represents the distance traveled by the student while, the time taken by the student to cover the distance is given on the x-axis.

We know that the rate of 1.5 meters per second, means that the student will cover the 1.5 meters in 1 second, therefore, the line will be a slope that will represent the walk of the student. At time t=4 seconds, a student stopped for 4 seconds therefore, the time will increase but the distance will be constant for the student, therefore, the situation will be represented by a horizontal line.

Hence, the graph that best represents the student's walk is graph A.

Learn more about Graph:

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Answer:

is this a song or something

Answer:

Is this some sort of poem which you wanted to share?

Answer:

94

Step-by-step explanation:

the sum of the angles in a triangle add up to equal 180

180-73-13=94

Answer: X = 89°

Step-by-step explanation:

At first glance I could tell this was an isosceles triangle, the angles of an isosceles triangle add up to 180°. So just add 73° + 13° = 91° so then you subtract 91° from 180° and you get 89°.

Answer: 5

Step-by-step explanation:

5x15,000=75,000

245,000-75,000=170,000

170,000\32,000=5.3125

She's able to hire 5 part-time employees

Answer:23

Step-by-step explanation:

Answer:

z = 23

Step-by-step explanation:

The angles in a triangle add up to 180°.

So, 62° + 95° + z = 180°.

Subtract 62 and 95 on both sides.

62 + 95 + z - 62 - 95 = 180 - 62 - 95

z = 23

Hope this helps! Feel free to ask any questions.

Answer:

2.9

Step-by-step explanation:

11.6 divided by 4 equals 2.9

Answer:

2.9 :)

Step-by-step explanation:

The area of the sector which is the white triangle adding the shaded region is 68.9/360*π*9.28^2=51.78005(rounding to 5th digit after decimal point for accuracy before we do final round for answer)

The area of the white triangle in the sector has area 1/2*9.28^2*sin(68.9)= 40.17223(rounding to 5 digits again for some accuracy.

Now we take out the white triangle from the sector.

51.78005-40.17223=11.60782

rounding to the nearest tenth we get 11.6 cm^2

Problem done!

Hope this helped and if you have any questions about my explanation just ask in the comment and I will answer.

______________________________

 - When calculating powers, you take the base and multiply by the base however what the number of the exponent is. In this case the base is 2. So you do 2 × 2 × 2 × 2 × 2 = 32.

So your answer is [tex]\bold{96}[/tex].

______________________________

Answer: Q(n) = Q(n - 1) + 2.5

Step-by-step explanation:

We have 3 values of the sequence Q(n)

These values are:

Q(1) = 3

Q(3) = 8

Q(7) = 18

I would think that this is a geometric sequence.

Remember that the equation for the n-th term of a geometric sequence is:

A(n) = A(1)*r^(n-1)

where r is a constant, and A(1) is the first term of the sequence.

If we rewrite the terms that we know of Q(n) in this way we get:

Q(3) = Q(1)*r^(3 - 1) = 3*r^2 = 8

Q(7) = Q(1)*r^(7 - 1) = 3*r^6 = 18

Then we have two equations:

3*r^2 = 8

3*r^6 = 18

We should see if r is the same for both equations:

in the first one we get:

r^2 = 8/3

r = (8/3)^(1/2) = 1.63

and in the other equation we get:

r^6 = 18/3

r = (18/3)^(1/6) = 1.34

Then this is not a geometric sequence.

Now let's see if this is an arithmetic sequence.

The n-th term of an arithmetic sequence is written as:

A(n) = A(1) + (n - 1)*d

where d is a constant.

If we write the terms of Q(n) that we know in this way we get:

Q(3) = Q(1) + (3 - 1)*d = 3 + 2*d = 8

Q(7) = Q(1) + (7 - 1)*d = 3 + 6*d = 18

We need to see if d is the same value for both equations.

in the first one we get:

3 + 2*d = 8

2*d = 8 - 3 = 5

d = 5/2 = 2.5

In the second equation we get:

3 + 6*d = 18

6*d = 18 - 3 = 15

d = 15/6 = 2.5

d is the same for both terms, then this is an arithmetic sequence.

An arithmetic sequence is a sequence where the difference between any two consecutive terms is always the same value (d)

Then the recursive relation is written as:

A(n) = A(n - 1) + d

Then the recursive relation for Q is:

Q(n) = Q(n - 1) + 2.5