Mathematics Middle School

13)

 A coin is tossed three times, with 'heads' or 'tails' recorded after each toss. The number of possible outcomes for this experiment is


Answers

Answer 1
1/8 (12.5%) i think
Answer 2

ttt,tht,tth,htt,thh,hht,hhh,hth

8 possible outcomes

Related Questions

Students in a class were asked to name their favorite sport they like to watch on television. The results are shown in the circle graph. How many times more students prefer to watch basketball than prefer to watch soccer? Soccer- 3% Basketball- 25.5%

Answers

25.5 / 3 = 8.5

8.5 times more student prefer basketball over soccer

Using the divison operation, we can conclude that students prefer Basksetball 8.5 times more than soccer.

Percentage who prefer soccer = 3%Percentage who prefer Basksetball = 25.5%

To obtain the number of times basket ball preference is greater than soccer :

We use the division operation :

(percentage of basketball) ÷ (percentage of soccer)

(25.5) ÷ 3 = 8.5

Therefore, students prefer basketball 8.5 times more than soccer.

Learn more : https://brainly.com/question/15707582

does the graph represents a function

Answers

You could use a simple pencil test to figure it out.
Place a pencil vertically on the paper, and move it left to right or vise-versa 
When moving it make sure the pencil doesn't hit two points at once if it does it is not a function, but this is not the case

This is a function

In this situation, we would use something called the vertical line test. In other words, if we can draw a vertical line that passes more than one point on the graph, then the relation is not a function.

If we use the vertical line test in this situation, it is not possible to draw a vertical line that passes through more than one point. Therefore, this does represent a function.

In ABC what is the measure of C

Answers

C = 36

To solve this equation, you know what each angle is equal to, and all triangles add to equal 180 degrees, so you can set it up like so:


6x + 2x + 2x = 180      Then combine all the x's and simplify by dividing.

Answer:

36 °

Step-by-step explanation:

Hello

In geometry an interior angle or an  internal angle is an angle formed by two sides of a polygon that sharing a common end is contained within the polygon, and the sum of these angles is given by

sum=(n-2)*180°

where n is the number of sides of the polygon,in our case n= 3 (a triangle)

Step 1

find the sum o internal angles

sum=(3-2)*108°

sum=1*180°

(1)sum=180°

step 2

find x

now, according to the graph the sum of internal angles is

sum(graph)=6x+2x+2x

(2)sum=10x

(1) must be equal to (2)

180°=10x

isolating x

x=18

Step 3

find C

by the graph ,we know

C=2x

and x=18

replacing

C=2(18)

C=36°

Have a great day

Adelaide paid $35 for a manicure and gave the manicurist a 20% tip How much money did Adelaide give her manicurist

Answers

The correct answer is:
$42.

Explanation:
The best way to find a total bill including tip (or tax if that is what you are looking for - it is found the same way), is to multiply the original total by 1 + the percentage of the tip.

Since the percentage is 20%, we add 0.20 to 1 to get 1.20.
Now we multiply that by the original cost to get the final answer.
1.20*35 = 42

Answer:

Adelaide gave $ 42 to the manicurist.

Step-by-step explanation:

Here, the original price of the manicure = $ 35

Since, 20% tip is given to manicurist,

Thus, the total payment for manicure = Original price of the manicure + 20 % of the original price of the manicure

= 35 + 20 % of 35

[tex]=35+\frac{20\times 35}{100}[/tex]

[tex]=35+\frac{700}{100}[/tex]

[tex]=35+7[/tex]

[tex]=42[/tex]

Hence, Adelaide gave $ 42 to the manicurist.

What is the value of x?

Enter your answer in the box.
x =

Answers

x^2 + 12^2 = 13^2

x^2 + 144 = 169

x^2 = 169-144

x^2 = 25
x = sqrt(25)
x = 5

Is 5 quarts bigger than 25 cups

Answers

No, 5 quarts is not bigger than 25 cups.

5 quarts = 20 cups
1 quart = 4 cups

5 quarts is smaller than 25 cups

Lucy is a dress maker. She sews 4/7 of a dress in 3/4 hour. Lucy sews at a constant rate. At this rate, how many dresses does Lucy sew in one?

Answers

To find out how many dresses she can sew in one hour, divide the fraction of the dress she makes by the number of hours it takes for her to make the dress.

[tex]\sf\dfrac{4}{7}\div\dfrac{3}{4}[/tex]

When dividing fractions we flip the one we're dividing by and multiply:

[tex]\sf\dfrac{4}{7}\times\dfrac{4}{3}[/tex]

Multiply the numerators and denominators together:

[tex]\boxed{\sf\dfrac{16}{21}}[/tex]

So she sews 16/21 of a dress in one hour.

Can someone please help me??

Answers

I believe your answer should be 8, I am sorry if I am wrong, please mark mine with a low star rating if I am false

Please I need help ASAP (brainly + thank you + brainly)

Answers

88.3 : 100 = 86.7 : x
 x = 98.18 
100-98.18=1.81 (rounded 1.8)
----------------------------------------------

(88.3-1.8%=86.7)

88.3-1.8%=86.7 is the answer

th original price of a computer was reduced by $250. if p= the computer original price in dollars. which algebraic expression represents the reduced price

Answers

the algebraic expression would be p-250
The original price is p, it was reduced by $250 so your expression should be

p-250

find an inequality that you can use to disprove John statement. explain your thinking.

Answers

Try this inequality with 0 as the right side.

-x > 0

According to John, we multiply both sides by -1, and the inequality sign does not change direction, so we get this

x > 0

Let's use a number for x that makes the original inequality true.
Let x = -2.

-x > 0

-(-2) > 0

2 > 0

As you can see, -2 does work on the original equation.

Now let's try -2 in John's solution.

x > 0

-2 > 0 which is a false statement.

Now let's solve it again, but we will reverse the inequality symbol when we multiply both sides by -1.

-x > 0

x < 0

Try x = -2.

-2 < 0   which is true

Now it works.

John is incorrect.
If you multiply or divide an equation by a negative number, even if one of its sides is 0, you still must change the direction of the inequality symbol.

What is the answer to 2

Answers

3(2x+1) If you multiply this out, you will get 6x+3. 

A = 4(6x + 3)
A = 4(6x) + 4(3)
A = 24x + 12

The answer is 24x+12.
Hey there.

As we are looking for the perimeter of the polygon, we should understand the formula for each figure. For #2, we can clearly see that we have a square, which concludes that the perimeter for the figure is going to be 4S ('S' being the length of one side as all sides are equal).

Let's apply this to our problem.
P = 4S;
S = 6x + 3; set this up as an equation.

P = 4(6x + 3); apply the distributive property to the right side of the equation.
P = 4(6x) + 4(3);
P = 24x + 12

As we can see above, the perimeter of the square in problem #2 is going to be 24x + 12. 

I hope this helps!

Need help! Easy!! 7th grade Pre-algebra! Easy!

Answers

7. The sign of -10 tells you the signs of the roots are different, leaving only B and C as viable choices. It is easiest to evaluate the quadratic using the integer root. When we use -2, we find the equation is satisfied.

B is the appropriate selection.

_____
8. The vertex form will be
.. y = a(x +1)² -10 . . . . . matching selections F and H
When we substitute x=1, we get 4a-10 = 2; a=3

H is the appropriate selection
The answers are B and H

The ratio of plates to napkins is 3:12. Write the ratio in simplest form.

Answers

The ratio 3:12 in simplest form would be 1:4. We can figure this out by dividing the ratio by 3 which would leave 1 plate to 4 napkins.
I hope this helped! :-)
1:4 is the answer.

The common factor of 3 and 12 is 3.

3 divided by 3 is 1

12 divided by 3 is 4

So you get 1:4

Hope this helped! ♡

In the coordinate plane, what is the length of the line segment that connects points at (4, −1) and (9, 7) ? Enter your answer in the box. Round to the nearest hundredth.

Answers

On this question is asked you to find the length of a line segment with endpoints (4,-1) and (9,7) and round it to the nearest hundredth. The only way to find the solution is by the use of the Distance Formula, which is d=√(x2-x1)^2+(y2-y1)^2.

d=√(x2-x1)^2+(y2-y1)2^2
d=√(9-4)^2+(7--1)^2
d=√(5)^2+(8)^2
d=√(25)+(64)
d=√89
d=9.43 units

The length of the line segment is 9.43 units.

Final answer:

The length of the line segment connecting points (4, -1) and (9, 7) in the coordinate plane is approximately 9.43 units, when rounded to the nearest hundredth.

Explanation:

To find the length of the line segment that connects the points (4, −1) and (9, 7) in the coordinate plane, we can use the distance formula which is derived from the Pythagorean theorem:

The distance (Δ) between two points (x1, y1) and (x2, y2) is given by:

Δ = √((x2 - x1)² + (y2 - y1)²)

Substituting the given coordinates:

Δ = √((9 - 4)² + (7 - (−1))²)

Δ = √(5² + 8²)

Δ = √(25 + 64)

Δ = √89

Using a calculator, we can find that:

Δ ≈ 9.43

Therefore, the length of the line segment is approximately 9.43 units, rounded to the nearest hundredth.

456 000 has been rounded to the nearest thousand.
What was the smallest possible number this could have been?

Answers

The smallest number could have been 455,500

if a circle has a radius of 2.5 inches what is the area of the circle

Answers

The answer should be 19.63
the equation for a circle’s area is πr^2. rounding π to 3.14, your equation is (3.14)(2.5)^2.

answer: 19.625

I’m not sure how to do this

Answers

It's b because you have to round up
The answer is B because [tex] \sqrt{22} [/tex] is about 4.6904, and it is closest to 4.7. 
Hope this helps!

A diver begins at sea level and dives down 200 feet. He ascends at a steady rate of 121/3 feet per minute for 4.5 minutes. This depth is represented by the numerical expression:      -200 + 121 3 (4.5) Simplify the expression using the order of operations. What is the diver’s depth?      -200 + 37 3 (4.5)     -200 + 55.5

Answers

−200+

37

3

(4.5)

=−200+55.5

=−144.5             You can use order of operations or pemdas to solve problems like this. Just remeber to go left to right and multiplaction can be before division and multiplacation can be before divison (same with subtaction and addition)

The diver’s depth is 18.5 feet below from sea level.

Given that, A diver begins at sea level and dives down 200 feet.

He ascends at a steady rate of 121/3 feet per minute for 4.5 minutes.

This depth is represented by the numerical expression is,

                 [tex]=-200 +\frac{121}{3}*(4.5) \\\\=-200+(121*1.5)\\\\=-200+181.5\\\\=-18.5feet[/tex]

Negative sign indicate that below the sea level.

Hence, The  diver’s depth is 18.5 feet below from sea level.

Learn more:

https://brainly.com/question/482297

-x+y=5 4x+y=10 Use addition to solve the linear system of equations. Include all of your work in your final answer

Answers

Answer:
x = 1
y = 6

Explanation:
The first given equation is:
-x + y = 5
Multiply this equation by -1, you will get:
x - y = -5 ............> I

The second given equation is:
4x + y = 10 ..........> II

Add the two equations I and II as follows:
    x   - y = -5
+  4x + y = 10
..............................
    5x        = 5
Therefore:
x = 5/5
x = 1

Substitute with x in equation I to get y as follows:
x - y = -5
1 - y = -5
y = 1 + 5
y = 6

Hope this helps :)

Charlene records the number of pieces of red colored candies in ten bags of candy of assorted colors. find and interpret the mean absolute deviation of the data
6,6,7,7,8,8,10,10,11

Answers

To calculate the mean absolute deviation, you first must find the mean of the data and then find the difference between each piece of data and the mean.

Please see the attached picture for the work.

The mean absolute deviation is approximately 1.48.

This means that the numbers of candies in the 10 bags are all very close to one another. There is not much variation.

Which coordinate grid shows the correct locations of P(1, 2.5), point Q, which is a reflection of point P across the y-axis, and R(2, −2.5)?

Answers

Answer:

the second one is correct

Step-by-step explanation:

Answer:the second

Step-by-step explanation:

What is 143-1 1/20 please how meeeee I'm stupid but I just have to check my work if I got it right

Answers

is the question 143 - 11/20?
143-1 * 1/20
142 * 1/20
142/20
7.1

HEEEEEEELP ASAP Janette went to Tire Mart and paid $122.57 per tire for 4 tires and a flat rate fee for installation for a total of $555.28 before taxes. Monique went to Fast Wheels and paid $136.71 per tire for 4 tires and a flat rate fee for installation for a total of $585.34 before taxes. The difference in the amount that they paid in installation charges is $____                      WILL GIVE YOU BRAINLIEST

Answers

$122.57 • 4 + $555.28 = $1,045.56

$136.71 • 4 + $585.34 = $1,132.18

$1,132.18 - $1,045.56 = $86.62

What is the MAD of the data set?

{13, 6, 3, 7, 11}

Enter your answer in the box.

Answers

The MAD value of the given data set is "3.2".

Mean absolute deviation (MAD)

The average distance between each data value and the mean is defined as the mean absolute deviation of a data set. It is a measure of variation in a data set.

Calculation of the MAD value:

Given:

[tex]\to \{ 13, 6, 3, 7, 11\} \\\\[/tex]

Calculating the sum of the given value:

[tex]\to 13 + 6 + 3 + 7 + 11 = 40\\\\[/tex]

Calculating the average value:

[tex]\to \frac{40}{ 5} = 8\\\\[/tex]

Subtracting the average value from the given set:

[tex]\to 13 - 8 = 5\\\\\to 6 - 8 = | -2 | = 2\\\\\to 3 - 8 = | -5 | = 5\\\\\to 7 - 8 = | -1 | = 1\\\\\to 11 - 8 = 3\\\\[/tex]

Calculated set value:

[tex]\to 5, 2, 5, 1, 3\\\\[/tex]

Adding the set value:

[tex]\to 5 + 2 + 5 + 1 + 3 = 16[/tex]

Calculating the average value of the set:

[tex]\to \frac{16}{5} = 3.2\\\\[/tex]

So, the

[tex]\to \text{MAD} = 3.2[/tex]

Therefore, the final value of MAD is "3.2"

Find out more information about the MAD here:

brainly.com/question/452971

help with how to solve this

Answers

I think it’s G, because you would ad like another set of box and yeah

a circle has a radius of 8 inches. What is the circumference in terms of pi?

Answers

The circumference is 50.24, because 2 * 3.14 * 8 = 50.24.
Please make brainliest! ☺
 
circumference=pi*diameter
multiply the radius by 2 to get the diameter - which is 16
pi*16=50.26548...
50.26548... OR  50.3 rounded

Thirty five is what fraction of 80

Answers

The fraction is 7/16
35/80= 7/16
The answer is (35/80=7/16) hope it helps  and have a great day!

the perimeter of a rectangular sandbox is 34 ft if the length of the sandbox is 8 ft what is the width of the Sand box

Answers

If 8+8=16, 34 - 16 = 18. Half of 18 is 9, so the width is 9 ft
34-8x2=18
18/2=9
The width of the sandbox is 9

how do you do this please help me

Answers

Perimeter is the sum of the sides.
4x + 6 +3x + 2 = 57
7x + 8 = 57
7x = 49
x = 7

The perimeter of a triangle is the sum of all sides' lengths.

Thus,

[tex]P=6+4x+(3x+2)=7x+8.[/tex]

Given [tex]P=57\ cm,[/tex] you get

[tex]7x+8=57,\\ \\7x=57-8,\\ \\7x=49,\\ \\x=\dfrac{49}{7},\\ \\x=7\ cm.[/tex]

Answer: x=7 cm.

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