there are three questions you left blank on a multiple choice test with options A, B, C, or D. What is the probability that if you randomly guess you get at least one of them wrong?

Answer: its 48% i took the test

Step-by-step explanation:

Answer:

the actual answer is 43%

Step-by-step explanation:

Answer:

-1⅓

Step-by-step explanation:

According to the Rate of Change [Slope] Formula, m = -y₁ + y₂\-x₁ + x₂, you plug in each coordinate into the correct places and you will arrive at the above answer.

Answer:

  4

-------

x + 7

Step-by-step explanation:

sum of x and 7 = (x + 7)

So 4 divided by the sum of x and 7 = 4 / (x + 7)

Answer

  4

-------

x + 7

Final answer:

The correct way to write the expression '4 divided by the sum of x and 7' is 4 / (x + 7), which is not represented in any of the given options.

Explanation:

The expression 4 divided by the sum of x and 7 is written mathematically as 4 / (x + 7). None of the provided options A) 4 + 7 x, B) x 4 + 7, C) x + 7 4, or D) 4 x + 7 correctly represent this expression. The correct notation for division by a sum involves placing the sum in the denominator inside parentheses to ensure the correct order of operations is followed.

The solution is, Mean Absolute Deviation = 2.2222

The next three procedures are necessary to calculate the mean absolute deviation.

By adding up all the observations and dividing by the sample size, you can determine the sample average.

Discover the total deviation from the mean of each data point. When negative signals appear, ignore them and instead deduct the observed values from the mean.

Determine the absolute deviations' average. Divide the total of the values from step #2 by the sample size.

here, we have,

Input Data:

Data set = 1, 2, 3, 4, 5, 6, 7, 8, 9

Total number of elements = 9

Objective:

Find what is mean absolute for given input data?

Solution:

X mean = (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9)/9

= 45/9

X mean = 5

MAD = (1 - 5) + (2 - 5) + (3 - 5) + (4 - 5) + (5 - 5) + (6 - 5) + (7 - 5) + (8 - 5) + (9 - 5)9 = (4) + (3) + (2) + (1) + (0) + (1) + (2) + (3) + (4)9

=209

Mean Absolute Deviation = 2.2222

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Answer:

Area of 81 sq in: 40.2

Perimeter of 36 in : 9

Step-by-step explanation:

Hope I'm right! :)

Answer:

9 inches

Step-by-step explanation:

A square has an area of 81 in^2

A = s^2

81 = s^2

Take the square root of each side

sqrt(81) = sqrt(s^2)

9 = s

The side length is 9 inches

A square has a perimeter of 36 in

P = 4s

36 = 4s

Divide each side by 4

36/4 = 4s/4

9 = s

Each side is 9 inches

Answer:

B

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

[tex]\frac{f(b)-f(a)}{b-a}[/tex]

here [ a, b ] = [ 2, 4 ]

f(b) = f(4) = 16 ← from graph

f(a) = f(2) = 4 ← from graph

average rate of change = [tex]\frac{16-4}{4-2}[/tex] = [tex]\frac{12}{2}[/tex] = 6

Answer:

The Answer is the 2nd Table from the top

Step-by-step explanation:

Total of 30 men, 20 watched 10 didn't

Total of 80 participants, 45 Watched, 35 Didn't

The Female participants had to add up to fill in the bottom rows.

Answer:

B

Step-by-step explanation:

Find the median and the upper/lower quartiles

Rearrange the data in ascending order

33, 36, 37, 38, 41, 42, 46, 49, 50, 50, 51, 52, 53, 54

The median is the middle value of the data or if there is no exact value at the middle then it is the average of the 2 values either side of the middle

Here the median is between 46 and 49

median = [tex]\frac{46+49}{2}[/tex] = 47.5

The upper quartile is the middle value of the data to the right of the median

[tex]Q_{3}[/tex] = 51

The lower quartile is the middle value of the data to the left of the median

[tex]Q_{1}[/tex] = 38

The minimum value = 33

The maximum value = 54

The lower quartile is the left side of the box plot

The upper quartile is the right side of the box plot

The median is located inside the box plot

The corresponding box plot is B

B is the answer good luck man

Answer:

314 units²

Step-by-step explanation:

Centre of the circle = (0, 0)

Another point on the circle = (-6, -8)

[tex]\text {Radius = }\sqrt{(0 - (-6))^2 + (0- (-8))^2}[/tex]

[tex]\text {Radius = }\sqrt{6^2 + 8^2}[/tex]

[tex]\text {Radius = }\sqrt{100}[/tex]

[tex]\text {Radius = }10[/tex]

Area = π (10)² = 100π = 314 units²

Final answer:

The area of the circle is found by first calculating the radius using the distance formula, which is determined to be 10 units. Then, the area formula πr² is used to find that the area of the circle is 100π square units.

Explanation:

To find the area of the circle centered at the origin containing the point (-6, -8), we first need to determine the radius of the circle. The radius can be found using the distance formula for a point from the origin, which is √((-6)²+ (-8)²). After calculating the radius, we use the formula for the area of a circle, which is πr^2, to find the circle's area.

The distance from the origin to the point (-6, -8) is the radius (r) of the circle: r = √((-6)² + (-8)²) = √(36 + 64) = √100 = 10.

Now that we have the radius, we can calculate the area (A): A = πr² = π(10)² = 100π square units.

Answer:

440

Step-by-step explanation:

124+124+96+96=440

Answer:

The plane should pass through the central axis, along the vertical diagonals of the cube, in order to produce a cross section that is a regular hexagon.

Step-by-step explanation:

The plane should pass through the central axis, along the vertical diagonals of the cube, in order to produce a cross section that is a regular hexagon.

Please see the image attached for better visualization.

To produce a regular hexagon as a cross section of a cube, the plane should pass through the cube's vertices and form an equilateral triangle with the three edges it intersects.

In order to produce a regular hexagon as a cross section of a cube, the plane should pass through the cube's vertices. The three edges that the plane passes through should form an equilateral triangle on the face of the cube. This is because a regular hexagon can be formed by placing equilateral triangles side by side.

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Answer:

11.066666666667 or simplified 12

Step-by-step explanation:

Answer:  11.0667

Step-by-step explanation:

= Mean just incase you need is :

83

And population size just incase you need as well is :

15

* Hopefully this helps:) Mark me the brainliest:)!!

~234483279c20~

Okay I’ll give it my best to explain and solve understand I’m human and if I get this wrong I made a mistake please don’t hate me having said that 96= {x+2} * {x-2} combining like terms x*x (2-2=0) = 92 x^2 and that’s how far I can get you

Answer:

x = 24.                      

Step-by-step explanation:

Set 96 = (x+2)+(x+2) + (x-2)+(x-2).  Then simplify: 96 = (2x+4) + (2x-4). Simplify again XD: 96 = 4x (since +4 and -4 cancel out to get 0) . Divide 96 by 4 and your final answer should  be 24         Wow..that was pretty slight lol :D

d, 'y-axis, x-axis, y-axis, x-axis'

its the correct answer on the test :)) Goodluck !

The correct set of reflections that would carry triangle ABC onto itself is:

d. y-axis, x-axis, y-axis, x-axis

As per the shown graph, the coordinates of the vertices:

A(0,2)

B(2,4)

C(3,0)

We observe that the y-axis is the vertical line passing through x = 0, and the x-axis is the horizontal line passing through y = 0.

By analyzing the positions of the vertices, we can see that the triangle has rotational symmetry of 180 degrees around points (1, 2) and reflectional symmetry across both the x-axis and the y-axis.

Therefore, the correct set of reflections that would carry triangle ABC onto itself is:

d. y-axis, x-axis, y-axis, x-axis

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Answer:

84

Step-by-step explanation:

To find this, we need to understand the combination formula.

If we have n items and we want to choose r at a time, we use the formula:

[tex]nCr=\frac{n!}{(n-r)!*r!}[/tex]

Where n! means n(n-1)(n-2)....

So we want 9C3, plugging them into the formula and doing some arithmetic, we have:

[tex]nCr=\frac{n!}{(n-r)!*r!}\\9C3=\frac{9!}{(9-3)!*3!}\\=\frac{9!}{6!*3!}\\=\frac{9*8*7*6!}{6!*3*2*1}\\=\frac{9*8*7}{3*2*1}\\=84[/tex]

So, there can be 84 combinations possible.

Answer:

$478

Step-by-step explanation:

To calculate the profit, we have to subtract the expenses from the revenues.

P = Revenues - expenses

We know the family gained $523 from the yard sale.

We also know they had to pay $45 for advertising.

So, the net different is the profit for the family:

P = $523 - $45 = $478.

That was a very good yard sale!, I hope mine went that well.

528 -45 would be your answer

Answer:

[tex]15.42mi[/tex]

Step-by-step explanation:

Use the formula for a semicircle's perimeter.

[tex]P=\frac{1}{2}\pi *d+d[/tex]

Plug in 6 for d.

[tex]P=\frac{1}{2}\pi*6+6[/tex]

Let's use 3.14 for [tex]\pi[/tex], just to make it easier, but of course, if it states to round it to something else, just plug in that many values for [tex]\pi[/tex].

[tex]P=\frac{1}{2}(3.14)*6+6 \\ \\ P=1.57*6+6 \\ \\ P=9.42+6 \\ \\ P=15.42[/tex]

Answer:

Step-by-step explanation:

The perimeter = pi * d + d

d = 6 miles

The perimeter = pi*6 + 6       This is one possible answer

perimeter = 6*3.14 + 6

perimeter = 18.84 + 6

perimeter = 24.84                  Which is another possibility

If you have choices, please list them.

Answer:

3

Step-by-step explanation:

g

Answer:

Step-by-step explanation:

2x - 9

If x = 3

Then,

2·(3) - 9 = 6 - 9 = (-3)

Answer:

(1/3)³c = 5

(1/27)c = 5

c = 5 × 27 = 135 cubes

The Main Answer is 135. It takes [tex]135[/tex] of the [tex]1/3[/tex] unit cubes to fill the rectangular prism.

To find out how many [tex]1/3[/tex] unit cubes it takes to fill the rectangular prism with a volume of [tex]5[/tex] cubic units, we need to divide the volume of the prism by the volume of each individual cube.

The volume of the rectangular prism is given as [tex]5[/tex] cubic units. Since the prism is a rectangular shape, we can calculate its volume using the formula:

[tex]Volume of prism=length*width*height[/tex]

Given that the side length of each cube is [tex]1/3[/tex] unit, the volume of each cube is:

[tex]Volume of cube=(side length)^{3} =(1/3)^{3}=1/27 cubic[/tex]

Now, to find out how many cubes are needed to fill the prism, we divide the volume of the prism by the volume of each cube:

[tex]Number of cubes=Volume of prism/Volume of cube \\Number of cubes=5/(1/27)\\Number of cubes=5*27\\Number of cubes=135[/tex]

So, it takes [tex]135[/tex] of the [tex]1/3[/tex] unit cubes to fill the rectangular prism.

COMPLETE QUESTION:

A rectangular prism with a volume of [tex]5[/tex] cubic units is filled with cubes with side length of [tex]1/3[/tex] unit. How many [tex]1/3[/tex] unit cubes does it take to fill the prism?

Answer:

Full question in attached picture.

To quickly solve this problem, we can use a graphing tool or a calculator to plot the equation.

Please see the second attached image below, to find more information about the graph .

The equation is:

h(t) = -16.1*t^2 + 150

Looking at the graph, we can tell that the ball was dropped from

150 feet

And it hits the ground after

3.052 s

Answer:

yeah

Step-by-step explanation:

what she or he siad

Steps needed: 1. 464 / 19 = 24.4210526. 2. 19 books per 1 box

Answer: 25 boxes because then every book is in a box.

25 boxes is the answer

Answer:

b. equal to

Step-by-step explanation:

difference means subtract

19 - 4 = 15

5 * 3 = 15

and 15 is the answer for both so that means the blank is equal to (b)

Answer:

b

Step-by-step explanation:

The difference of 19 and 4 is 15.

5 multiplied by 3 is 15.

So the two are equal.

Answer:

R = 50

Step-by-step explanation:

The sum of the angles of a triangle equal 180 degrees

S + R + Q = 180

x+70 + x+ 20 + x = 180

Combine like terms

3x +90 =180

Subtract 90 from each side

3x+90-90 = 180-90

3x= 90

Divide by 3

3x/3= 90/3

x = 30

We want to find angle R

R = x+20

R = 30+20

R = 50

Given : The scale on the map shows that 1.5 cm represents 100 miles.

By unitary method,

1.5 cm = 100 miles

1 cm = 100/1.5 miles

39.2 cm = (100 × 39.2)/1.5 = 2613.33 miles (approx.)

Hence,

B) 2613.3 miles is the required answer.

Answer:

c

Step-by-step explanation:

did  da work

Answer:

Step-by-step explanation:

"At least" means "greater than or equal to."

  x - 19.35 ≥ 97.22

  x ≥ 116.57 . . . . . . . . . add 19.35

Bella originally had at least $116.57 in her account.

Answer:

$10 + ($55 * h)

Step-by-step explanation:

So we know from the question that the price automatically includes $10, add that at the beginning.

Then, we have to pay $55 per hour, h.

That means we have to multiply $55 by every hour; $55 * h.

That's how you get the expression!

Now you shall knoe da wae, my brudda.

what's missing is, how many days she was on vacation

A prism is a three-dimensional object that keeps the same cross-section throughout its length, such as a cylinder. An example of this is a cylinder, which has circular ends and maintains this cross-section throughout its length.

A prism is a three-dimensional shape with the same cross-section all the way through. This means that if you were to cut the prism at any point along its length, the shape you would see would be the same. An example of this is a cylinder, which has circular ends and maintains this cross-section throughout its length.

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Answer:

C. F(x) = (x - 4)^2

Step-by-step explanation:

f(x) = (x - h)^2 is a parabola that opens up and has the line x = h as the vertical axis.

Here, the vertical axis is x = 4, so h must be 4.

The answer is: C. F(x) = (x - 4)^2

Answer: C. F(x) = (x - 4)^2

Step-by-step explanation: i did on edge

Answer:

[tex]68m^2[/tex]

Step-by-step explanation:

To find the surface area of the prism, we find the area of each similar faces and multiply by 2 and then add all together

Area of square faces

[tex]2(4\times 4)=16m^2[/tex]

Area of parallelogram faces

[tex]=2bh[/tex]

[tex]=2(2\times 4)=16m^2[/tex]

Area of the rectangular faces;

[tex]=2(4\times 2.5)=20m^2[/tex]

The total surface area of the prism is 20+16+32=68 square meters