Plz help me with this

Plz Help Me With This

Answers

Answer 1

Answer:  B) 160

Step-by-step explanation:

Since the Standard deviation of 21 bins is 3 bins, then the first 7 bins falls in the first 2.5% edge of the bell curve.

2.5% of 21 times 1000 = (0.025)(21)(1000) = 160


Related Questions

Julia surveyed twenty households on her street to determine the average number of children living in each household. The tables below represent the collected data and a randomly selected sample from the population. Compare the mean of the population with the mean of the sample

Answers

0.55

Hope this helps :)

Answer: 0.55

This is the answer... hope this will help y'all. If I'm wrong, please tell me. Thanks ☺️

What is the radius of a sphere with a volume of 1/6 pie

Answers

Answer:

[tex]\large\boxed{the\ radius\ R=\dfrac{1}{2}}[/tex]

Step-by-step explanation:

The formula of a volume of a sphere:

[tex]V=\dfrac{4}{3}\pi R^3[/tex]

We have

[tex]V=\dfrac{1}{6}\pi[/tex]

Substitute:

[tex]\dfrac{4}{3}\pi R^3=\dfrac{1}{6}\pi[/tex]        divide both sides by π

[tex]\dfrac{4}{3}R^3=\dfrac{1}{6}[/tex]          multiply both sides by 3

[tex]3\!\!\!\!\diagup^1\cdot\dfrac{4}{3\!\!\!\!\diagup_1}R^3=3\!\!\!\!\diagup^1\cdot\dfrac{1}{6\!\!\!\!\diagup_2}[/tex]

[tex]4R^3=\dfrac{1}{2}[/tex]          divide both sides by 4

[tex]R^3=\dfrac{1}{2}:4\\\\R^3=\dfrac{1}{2}\cdot\dfrac{1}{4}\\\\R^3=\dfrac{1}{8}\to R=\sqrt[3]{\dfrac{1}{8}}\\\\R=\dfrac{\sqrt1}{\sqrt8}\\\\R=\dfrac{1}{2}[/tex]

Cody wants to attend the fall festival at school. The price of admission to the festival is $5.50 and each game cost additional 75 cents. If Cody has $15.00 to spend at the festival, whin adch Inequality can be used to solve for g, the number of games that he can play, and what is the maximum number of games he can play?

Answers

Answer:

5.50 + 75g <= 15

5.50 - 5.50 + 75g <= 15 - 5.50

75g <= 9.5

75g / 75 <= 75 / 15

g = 5

Step-by-step explanation:

Which point on the scatter plot is an outlier? (4 points)
Point H
Point I
Point J
Point K

Answers

Answer:

Point I

Step-by-step explanation:

Point I is the farthest away from the line of best fit

Answer:

Whoa that's easyyyy

Step-by-step explanation:

Point I because it's not close to the others and it's not anywhere near becing connected to another letter

What is the name for the total area of the surface of a solid? prism area net area surface area facial area

Answers

Answer:

I believe it is surface area

Answer:

Step-by-step explanation:

c

Find the quotient. (6x 2 + 23x + 20) ÷ (5 + 2x)

Answers

For this case we must find the quotient of[tex]6x ^ 2 + 23x + 20[/tex] between [tex]5 + 2x.[/tex]

As you can see in the figure, we must build a quotient in such a way that when multiplied by the divisor, we eliminate the terms of the dividend until we reach the remainder.

Answer:

[tex]3x + 4[/tex]

See attached image

Use the listing method to represent the following set. { x | x I, 2 ≤ x ≤ 5}

{2, 3, 4}

{2, 3, 4, 5}

{4, 5, 6, 7}

Answers

2,3,4,5. Is the list

The correct representation of the given set using the listing method is {2, 3, 4, 5}. The second option is correct.

The set {x | x I, 2 ≤ x ≤ 5} can be represented using the listing method.

Here, the set consists of all values of x that satisfy the condition 2 ≤ x ≤ 5. The values of x within this range are 2, 3, 4, and 5.

Therefore, the set can be represented as:

{2, 3, 4, 5}

This set includes all the values of x that are greater than or equal to 2 and less than or equal to 5, as indicated by the condition 2 ≤ x ≤ 5.

The elements listed in the set are 2, 3, 4, and 5, and no other values are included.

Learn more about set theory here:

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Katherine has 15 pairs of socks. Her brother, Bobby, has 3 times more than Katherine. How many pairs of socks does Bobby have?

Answers

Answer:

45pairs

Step-by-step explanation:

15x3=45

Josh invested $12,000 in mutual funds and received a sum of $20,000 at the end of the investment period. Calculate the ROI.

Answers

Answer:

ROI = 66.67%

Step-by-step explanation:

Given:

josh investment= $12,000

Received sum= $20,000

ROI=?

ROI is the return on investment that gives the loss or gain in any investment and is calculated by the following formula:

ROI= (interest/investment) x 100

Finding interest:

interests= received sum- investment

              = 20,000-12,000

              =8000

Putting values in ROI formula we get:

ROI= (8000/12000) x 100

      = 66.67%

Hence the return on investment is 66.67%!

help needed asap !!!!!!

Answers

Answer:

b)0, yes

Step-by-step explanation:

Given:

Vectors (4,8) . (6,-3)

Finding inner product of vectors:

= 4x6 + 8x-3

=24-24

=0

Now to check the angle between them using formula a.b=|a|.|b|cosθ

|a|= [tex]\sqrt{4^{2} +8^{2} } \\\sqrt{16+64}[/tex]

   =8.9

|b|=[tex]\sqrt{6^{2} +(-3)^{2} } \\\sqrt{36+9}[/tex]

   =6.7

Putting values of a.b=0 and |a|=8.9, |b|=6.7 in a.b=|a|.|b|cosθ we get,

0= 8.9(6.7)cosθ

cosθ =0

θ=90 degrees

Hence the two vectors are perpendicular !

Which of these expressions is equivalent to log(4^6)?

Answers

What are the expressions?

Answer:

It’s B

6x log (4)

Given a variance of 1992.8, what is the standard deviation?
about 43.13

about 43.76

about 45.20

about 44.64

Answers

ANSWER

about 44.64

EXPLANATION

The standard deviation is the square root of the variance.

So we can write the equation or formula;

[tex]standard \: \: deviation = \sqrt{variance} [/tex]

From the question, it was given that, the variance is 1992.8

To find the standard deviation, we plug in the given value of the variance.

[tex]standard \: \: deviation = \sqrt{1992.8} [/tex]

Take your scientific calculator and the given square root.

You should obtain:

[tex]standard \: \: deviation = 44.64078852[/tex]

We round to the nearest hundredth to obtain; 44.64

What is the exact volume of the cylinder?



Enter your answer, in terms of π , in the box.

Answers

Answer:

5.625π m³

Step-by-step explanation:

The formula for the volume of a cylinder of radius R and length L is:

V = π·R²·L.

Here, V = π·(1.5 m)²(2.5 m) = 5.625π m³

Answer:

Step-by-step explanation:

Givens

r = 1.5 meters.

h = 2.5 meters.

Formula

V = pi * r^2 * h

Solution

V = pi * 1.5^2 * 2.5

V = pi * 2.25 * 2.5

V = 5.625 pi

arrange 34,23,42,35,41,19,23 7.3 4.02,5 in ascending order​

Answers

4.02, 5, 7.3, 19, 23, 23, 34, 35, 41, 42

(Numbers are organized in ascending order from smallest to largest)

Write 7x-y=8 in the form of y=my+b

Answers

I'm going to assume that you meant y = mx + b not y = my + b

To do this move 7x to the right side by subtracting it to both sides

(7x - 7x) - y = 8 - 7x

0 - y = 8 -7x

-y = 8 - 7x

Y still isn't full isolated! There is still the negative sign that you have to get rid of. To do this divide -1 to both sides

-y/-1 = (8 - 7x)/ -1

y = -8 + 7x

y = 7x - 8

Hope this helped!

~Just a girl in love with Shawn Mendes

Evaluate F(1)
[tex]f(x) =\left \{ {{x^{2} +3 (if) -5 \leq x< 1} \atop {x (if) 1 \leq x \leq 5 }} \right.[/tex]

Answers

ANSWER

B. 1

EXPLANATION

The given function is

[tex]f(x) =\left \{ {{x^{2} +3 (if) -5 \leq x< 1} \atop {x (if) 1 \leq x \leq 5 }} \right.[/tex]

This is a piece-wise defined function.

We want to find f(1)

We substitute x=1 into f(x)=x because, 1 belongs to the interval,

1≤x≤5

f(1)=1

The correct answer is B.

A transformation T: (x, y) (x + 3, y + 1). For the ordered pair (4, 3), enter its preimage point. (-1, 2) (1, 2) (7, 4)

Answers

Answer:

(1,2)

Step-by-step explanation:

we know that

The rule of the transformation is equal to

(x, y)  ------> (x + 3, y + 1)

Pre-image -----> Image

(x, y)  ------> (4, 3)

so

x+3=4 ----> x=4-3=1

y+1=3 ---> y=3-1=2

therefore

The pre-image is the point (1,2)

Whitch value of x is in the solution set of the following inequality -x+8>6

Answers

Answer:

x<2

Step-by-step explanation:

-x+8>6

-x>6-8

-x>-2 (flip the sign)

x<2

Answer:

x < 2

Step-by-step explanation:

-x+8>6

Subtract 8 from each side

-x+8-8>6-8

-x > -2

Divide each side by -1.  Remember to flip the inequality

-x/-1 < -2/-1

x < 2

Using the quadratic formula, what's the value of b in this equation?
3k2 = 4k + 7

Answers

For this case we have a quadratic equation of the form:

[tex]ax ^ 2 + bx + c = 0[/tex]

Rewriting the equation we have:

[tex]3k ^ 2-4k-7 = 0[/tex]

So we have to:

[tex]a = 3\\b = -4\\c = -7[/tex]

The solutions will come from:

[tex]k = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}[/tex]

Thus, the value of "b" is -4

Answer:

[tex]b = -4[/tex]

Translate the sentence into an equation.
Four less than a number is 17.

Which equation is correct?

x – 17 = 4

x – 4 = 17

x + 4 = 17

x + 17 = 4​

Answers

Let the number = X

Then to get four less you need to subtract 4 from x so you have X-4.

Then that equals 17, so the equation would be:

x - 4 = 17

The equation of the sentence 'four less than a number is 17' is  x – 4 = 17

How to convert a sentence into an equation?

Let the number be x

Four less than the number means x - 4

Therefore,

Four less than a number is 17 means x – 4 = 17

Therefore, option x – 4 = 17 is the correct answer

To learn more about similar questions, refer :

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Alena is packing a box that has a height of one inch more than the width and a length of three inches more than the width, as shown in the diagram below. Write a polynomial expression, In simplified form, that represents the volume of the box.

(I need help...)

Answers

Answer:

The polynomial that represent the volume of the box is [tex]V=(x^{3}+4x^{2}+3x)\ in^{3}[/tex]

Step-by-step explanation:

we know that

The volume of the box is equal to

[tex]V=LWH[/tex]

we have

[tex]L=(x+3)\ in[/tex]

[tex]W=x\ in[/tex]

[tex]H=(x+1)\ in[/tex]

substitute in the formula

[tex]V=(x+3)(x)(x+1)\\V=(x^{2} +3x)(x+1)\\V=x^{3}+x^{2} +3x^{2} +3x\\ V=(x^{3}+4x^{2}+3x)\ in^{3}[/tex]

A 6-yard piece of ribbon costs $36.72. What is the price per foot?

Answers

Answer:

$2.04

Step-by-step explanation:

Note that: 1 yard = 3 feet.

First, change the amount of yard (6) to feet:

6 x 3 = 18

6 yard = 18 feet.

Note: 18 feet = $36.72

Find the cost per foot (1 feet). Note the equal sign, what you do to one side, you do to the other. Divide 18 from both sides.

(18 ft)/18 = ($36.72)/18

1 ft = 36.72/18

1 ft = 2.04/1

1 ft = $2.04

~

Answer:

$2.04

Step-by-step explanation:

36.72/6

So that would make the answer $2.04

Use scientific notation to estimate the number of inches in 1,425 miles. Include all calculations in your final answer.

1 inch ≈ 1.578 · 10 -^5 miles.

I NEED HELPPP!! ASAP!!


FOR 25PTS!

Answers

Here,

[tex]1.578 \times {10}^{ - 5} miles = 1 \: inches \\ 1 \: miles = \frac{1}{1.578 \times {10}^{ - 5} } \: inches\\ 1425 \: miles = \frac{1}{1.578 \times {10}^{ - 5} } \times 1425 inches\\ = 9.03 \times {10}^{7} inches[/tex]

I hope it helps you

In a tank of water, a can of regular soda will sink to the bottom, but can a diet soda of diet soda of the same size will float . Select all the reasons explaining the phenomenon ​

Answers

Answer:

One of the many reasons of this is because the diet soda is less dense than the normal soda, therefor, it will float even though there's the same amount of liquid in each can, and the cans weigh the same amount

I hope this helps

Step-by-step explanation:

Answer:

The options in the question are missing, but the answer is "The can of diet soda will float due to the Archimedes principle.

Step-by-step explanation:

Now, Archimedes Principle can be defined as,

when a body is partially or completely immersed in a fluid, the body losses its weight in the fluid equal to the amount of fluid displaced by this body.

Notice that the phenomena of floating and sinking is based on Archimedes principle. If, the weight of body is higher than the amount of liquid it displaced, body will sink and if the weight of body is lower than the amount of liquid it displaced, then it will float. Now, in comparison of regular can with diet can, one needs to notice that diet can is slightly lighter due to absence of sugar in the liquid it contained. But the volume of both regular and diet can are same. When immersed, both displace same amount of water, but the weight of diet can is slightly lesser than the amount of water it displaced, so it floats, while on the other hand, the weight of normal can is slightly higher than the amount of water it displaced, so it sinks.

HELP! ASAP! I WILL MARK BRAINLIEST WHEN THE BUTTON COMES UP, I WILL THANK, AND RATE THE ANSWER, AND MAYBE FREIND REQUEST!

Answers

Answer:

A  Open circle at 6, line going to the right

Step-by-step explanation:

The area of a rectangle is given by

A = l*w

We know the area is greater than 24

24 < l*w

One dimension is 4

24 < 4*w

Divide each side by 4

24/4 < 4w/4

6 < w

The other dimension must be greater than 6

Open circle at 6, line going to the right


Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.

n an
1 4
2 −12
3 36

Answers

[tex]\bf \begin{array}{|cc|ll} \cline{1-2} n&a_n\\ \cline{1-2} 1&4\\ &\\ 2&\stackrel{4(-3)}{-12}\\ &\\ 3&\stackrel{-12(-3)}{36}\\ \cline{1-2} \end{array}\qquad \impliedby \textit{common ratio of "r" is -3} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio}\\[-0.5em] \hrulefill\\ r=-3\\ a_1=4\\ n=15 \end{cases} \\\\\\ S_{15}\implies \displaystyle\sum\limits_{i=4}^{15}~4(-3)^{i-1}[/tex]

Answer:

[tex]\sum_{n=4}^{15}4(-3)^{n-1}[/tex]

Step-by-step explanation:

The given sequence is 4, -12, 36

We can see there is a common ratio

[tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{-12}{4}=(-3)[/tex]

[tex]\frac{a_{2} }{a_{3} }[/tex] = [tex]\frac{36}{-12}=(-3)[/tex]

Therefore, the given sequence is a geometric sequence.

Now we have to determine the sigma notation of the sum for term 4 through term 15.

Since explicit formula of the sigma can be represented as

[tex]T_{n}=a(r)^{n-1}[/tex]

where [tex]T_{n}[/tex] = nth term

a = first term

n = number of term term

r = common ratio

and sum is denoted by [tex]\sum_{n=1}^{n}a(r)^{n-1}[/tex]

Now for the given sequence sigma notation will be

[tex]\sum_{n=4}^{15}4(-3)^{n-1}[/tex]

any ideas how to do this?

Answers

can the answer not being an integer?

The angle of elevation is at angle D

So the answer would be 13.8

Below are two different functions, f(x) and g(x). What can be determined about their y-intercepts?


f(x) = x + 4

x g(x)
−1 | 8
1 | 0
2 | −4

A) The function f(x) has a higher y-intercept.
B) The function g(x) has a higher y-intercept.
C) They both have the same y-intercept.
D) The relationship between y-intercepts cannot be determined.

Answers

Answer:

D) The relationship between y-intercepts cannot be determined.

Step-by-step explanation:

We have been given two different functions f(x) and g(x). Now we need to find about what can be determined about their y-intercepts. Then match with the correct choice from the given choices:

A) The function f(x) has a higher y-intercept.

B) The function g(x) has a higher y-intercept.

C) They both have the same y-intercept.

D) The relationship between y-intercepts cannot be determined.

We know that y-intercept is the y of function value when x=0.

In the table of g(x), we don't see any point that has x=0

So we can't find the y-intercept for g(x)

Hence correct choice is :

D) The relationship between y-intercepts cannot be determined.

Hello!

The answer is:

C) They both have the same y-intercept.

Why?

In order to find the correct option, we need to find the equation of the function g(x), and then, compare its y-intercept with the y-intercept of the f(x) function.

So,

- Finding the equation of the g(x):

Calculating the slope of the function, using the first two points (-1,8) and (1,0), we have:

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{0-8}{1-(-1)}=\frac{-8}{2}=-4[/tex]

Now, calculating the value of "b" using the first point (-1,8)  and the slope of the function, we have:

[tex]y=mx+b[/tex]

[tex]y=-x+b[/tex]

[tex]8=-4(-1)+b[/tex]

[tex]b=4[/tex]

So, the equation of g(x) is:

[tex]y=-4x+4[/tex]

- Comparing the y-intercepts of f(x) and g(x):

Finding the y-intercept of f(x),  by making "x" equal to 0, we have:

[tex]y=x+4\\\\y=4[/tex]

We have that the function f(x) has its y-intercept at "y" equal to 4.

Finding the y-intercept of g(x), by making "x" equal to 0, we have:

[tex]y=-4x+4[/tex]

[tex]y=-4*(0)+4[/tex]

[tex]y=4[/tex]

We have that the function g(x) has its y-intercept at "y" equal to 4.

Hence, we have that both functions have their y-intercepts at the same point, so, the correct option is:

C) They both have the same y-intercept.

Have a nice day!

Write the inverse of the function f(x) = 5x +3 ?

Answers

Answer: f(x^-1) = x/5 - 3/5

Step-by-step explanation:

1. Replace f(x) with y

2. Swap the positions of x and y to make x = 5y + 3

3. Solve for y by subtracting 3 from both sides and dividing each side by 5

The inverse of the function is f(x) = (x-3)/5 if the function f(x) is 5x +3 by taking the subject as x in the parent function.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have a function:

f(x) = 5x+3

To find the inverse of the function, take the subject x and the value of x.

f(x) - 3 = 5x

x = (f(x) - 3)/5

Replace the f(x) →x and x →f(x)

f(x) = (x-3)/5

Thus, the inverse of the function is f(x) = (x-3)/5 if the function f(x) is 5x +3 by taking the subject as x in the parent function.

Learn more about the fraction here:

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the cube root of the product of sixty-four, x cubed, and y to the eighth power​

Answers

What are you solving for?

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