) 65 people were asked on the activities they engage in during their free time. The results showed that 23 visit national parks, 26 engage in cycling while 22 engage in swimming. Furthermore 9 engage in swimming and visit national parks, 9 engage in swimming only while 11 visit national parks only. How many engage in
i. Swimming and cycling

Answers

Answer 1

Answer:

Step-by-step explanation:

i am working on the assumption that nobody does all three of them

i got 4 because including the people that do swimming and park, the total number of people that do swimming is 22.

the same logic goes for cycling: including the people that do swimming and visit the national park, the total is 23.

so that means that find how many people do swimming and cycling, we have to add the people doing only swimming, with the people doing both swimming and park and then subtract that answer from 22 which gives you 4

) 65 People Were Asked On The Activities They Engage In During Their Free Time. The Results Showed That

Related Questions

5. A conical shaped pile of sand at the beach has a base circumference of 16.5 feet
and stands 10.4 feet high. The Department of Public Works is going to remove
75% of the sand. How much sand will be left in the pile after they remove 75% of
the sand?

Answers

Answer: 18.78 cubic feet

Step-by-step explanation:

The detailed analysis is attached below.

Jim is participating in a 6-day cross-country biking challenge. He biked for 59, 52, 66, 45, and 68 miles on the first five days. How many
miles does he need to bike on the last day so that his average (mean) is 59 miles per day?
miles

Answers

Answer:

Jim needs to bike 64 miles on the last day to maintain an average of 59 miles per day.

Step-by-step explanation:

To find out how many miles Jim needs to bike on the last day to maintain an average of 59 miles per day, we can use the concept of averages.


The total distance Jim needs to bike over the 6 days to maintain an average of 59 miles per day can be calculated as follows:

Total distance = Average distance per day × Number of days

Total distance = 59 miles/day × 6 days = 354 miles


Jim has already biked a total of 59 + 52 + 66 + 45 + 68 = 290 miles over the first five days.


To find out how many miles Jim needs to bike on the last day, we subtract the distance he has already biked from the total distance needed:

Distance needed on the last day = Total distance - Distance already biked


Distance needed on the last day = 354 miles - 290 miles = 64 miles


Therefore, Jim needs to bike 64 miles on the last day to maintain an average of 59 miles per day over the 6-day cross-country biking challenge.

Please help! I need to get this done by midnight

Answers

There are 52 students taking none of the three languages.

There are 14 students taking both Arabic and Bulgarian. Of these, some may also take Chinese. We can find out how many by subtracting the students taking only Arabic or only Bulgarian from the total number of students taking Arabic and Bulgarian (14 + 15 + 19 = 48). So, 48 - 30 - 19 = 15 students are taking both Arabic and Bulgarian, and some of them may also take Chinese.

Next, we can subtract the students taking only Arabic, only Bulgarian, and only Chinese from the total number of students taking each language to find out how many students are taking all three languages.

From the students taking Arabic, we subtract the 15 students taking only Arabic: 30 - 15 = 15 students who may also be taking Bulgarian and Chinese.

From the students taking Bulgarian, we subtract the 19 students taking only Bulgarian: 36 - 19 = 17 students who may be taking Arabic and Chinese.

From the students taking Chinese, we subtract the 19 students taking only Chinese: 35 - 19 = 16 students who may be taking Arabic and Bulgarian.

So, there are 15 + 17 + 16 = 48 students who are taking some combination of the three languages.

Finally, to find out how many students are taking all three languages, we subtract the students taking only two of the languages from the total number of students taking some combination of the three languages (48 - (15 + 19 + 17) = 48 - 51 = -3). This means there are no students taking all three languages.

To find out how many students are taking none of the three languages, we subtract the total number of students taking some combination of the three languages from the total number of students at the school (100 - 48 = 52).

Hence, there are 52 students taking none of the three languages.

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URGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS
PLEASE ANSWER FAST!!!

Answers

A) Two equations are,

S = 18 + 4t

L = 30 + 3t

Where, "t" represents the number of weeks that have passed.

B)  It will take 12 weeks for Samuel and Lewis to have the same number of rocks in their collections.

C) when the amount of rocks in their collection is equal, Samuel and Lewis will have 66 rocks each.

Part A:

For a system of equations to represent the number of rocks in each person's collection.

Let "S" be the number of rocks in Samuel's collection and "L" be the number of rocks in Lewis's collection.

Hence, We can represent the situation as follows:

Equation 1:

S = 18 + 4t

Equation 2:

L = 30 + 3t

Where, "t" represents the number of weeks that have passed.

Part B:

To find out how many weeks it will take for Samuel and Lewis to have the same number of rocks in their collections, we need to set Equation 1 equal to Equation 2 and solve for "t".

This gives us the following:

S = L

18 + 4t = 30 + 3t

1t = 12

t = 12 weeks

Hence, It will take 12 weeks for Samuel and Lewis to have the same number of rocks in their collections.

Part C:

For number of rocks Samuel and Lewis will have when the amount of rocks in their collection is equal, we can substitute the value of "t" that we found in Part B into either Equation 1 or Equation 2.

Hence, substituting "t = 12" into Equation 1 gives,

S = 18 + 4(12)

S = 18 + 48

S = 66 rocks

Therefore, when the amount of rocks in their collection is equal, Samuel and Lewis will have 66 rocks each.

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An online real estate website estimates that a fair price for Jerrold’s house would be $715,000. The market is
strong, so he is optimistic and puts the house on the market for $750,000. Two weeks later, the best offer
he’s gotten is $718,000, and so he accepts that offer. At what percent above the website’s estimate did he set
his asking price? At what percent below his asking price did he sell

Answers

Answer:

approximately 4.2667%

Step-by-step explanation:

To calculate the percentage above the website's estimate that Jerrold set his asking price, we can use the following formula:

Percentage above = ((Asking price - Website estimate) / Website estimate) * 100

Percentage above = (($750,000 - $715,000) / $715,000) * 100

Percentage above ≈ 4.895

Therefore, Jerrold set his asking price approximately 4.895% above the website's estimate.

To calculate the percentage below his asking price that Jerrold sold for, we can use the following formula:

Percentage below = ((Selling price - Asking price) / Asking price) * 100

Percentage below = (($718,000 - $750,000) / $750,000) * 100

Percentage below ≈ -4.2667

Therefore, Jerrold sold his house approximately 4.2667% below his asking price.

let C be the curve y=5sqrtx for 1.1

Answers

We can integrate this S = 2π ∫(1.1 to 4.4) (5√(4x + 25))/(2√x) dx over the given interval (1.1 to 4.4) to find the surface area.

We can evaluate the integral using numerical methods or a calculator to find the final answer.

We have,

To find the surface area of the revolution about the x-axis of the function f(x) = 5√x over the interval (1.1 to 4.4), we can use the formula for the surface area of revolution:

S = ∫(a to b) 2πy√(1 + (f'(x))²) dx

In this case,

f(x) = 5√x, so f'(x) = (d/dx)(5√x) = 5/(2√x).

Let's calculate the surface area:

S = ∫(1.1 to 4.4) 2π(5√x)√(1 + (5/(2√x)²) dx

Simplifying the expression inside the integral:

S = ∫(1.1 to 4.4) x 2π(5√x)√(1 + 25/(4x)) dx

Next, we can integrate this expression over the given interval (1.1 to 4.4) to find the surface area.

To find the surface area of revolution about the x-axis of the function

f(x) = 5√x over the interval (1.1 to 4.4), we need to evaluate the integral:

S = ∫(1.1 to 4.4) 2π(5√x)√(1 + 25/(4x)) dx

Let's calculate the integral:

S = 2π ∫(1.1 to 4.4) (5√x)√(1 + 25/(4x)) dx

To simplify the calculation, let's simplify the expression inside the integral first:

S = 2π ∫(1.1 to 4.4) (5√x)√((4x + 25)/(4x)) dx

Next, we can distribute the square root and simplify further:

S = 2π ∫(1.1 to 4.4) (5√(4x + 25))/(2√x) dx

Thus,

We can integrate this expression over the given interval (1.1 to 4.4) to find the surface area.

We can evaluate the integral using numerical methods or a calculator to find the final answer.

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x 7 16 25 34
5
10
20
40
y
Is the relationship linear, exponential, or neither?

Answers

Based on the given data, the relationship appears to be exponential.

To determine if the relationship between the given values is linear, exponential, or neither, we can examine the pattern in the data.

If the relationship is linear, we would expect the values of y to increase or decrease at a constant rate as the values of x increase. In other words, there would be a constant slope between the points.

If the relationship is exponential, we would expect the values of y to change by a constant factor as the values of x increase. In this case, the relationship would exhibit exponential growth or decay.

Looking at the given values of x and y, we can observe the following differences between consecutive x-values: 7, 9, 9, 9. These differences are not constant, indicating that the relationship is not linear.

To determine if the relationship is exponential, we can examine the ratios between consecutive y-values: 5/10 = 0.5, 10/20 = 0.5, 20/40 = 0.5. These ratios are constant, suggesting that the relationship may be exponential with a common ratio of 0.5.

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A cube has a volume of 216 cubic inches. What is the length of each edge of the cube? A. 9 in. B. 6 in. C. 4 in. D. 3 in.

Answers

The length of each edge of the cube =  6 inches, Thus option B is correct.

The volume of a cube = 216 cubic inches,

length of each edge of a cube is an inch

To find the value of a:

The formula for the volume of a cube is [tex]a^{3}[/tex]

The volume of cubic = [tex]a^{3}[/tex]

V = [tex]a^{3}[/tex]

substitute the volume value given in the equation in the above formula

216 = [tex]a^{3}[/tex]

[tex]a = \sqrt[3]{216}[/tex]

[tex]a[/tex] = 6

a = 6inches

Therefore, the length of each edge of the cube is 6 inches.

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Lucy earns 400 a month in salary and she receives a commission of $18 for each applying she sells if last month Lucy earned a total of 886 how many appliances did she sell​

Answers

She sold 27 appliances.

Given,

Lucy earns $400 a month in salary and she receives a commission of $18.

Last Month income = $886

Now,

Equation:

Monthly income = Fixed income + income from commission

$886 = $400 +  income from commission

Income from commission = $486

Commission for one appliance = $18

So,

Total items sold for the commission of  $486,

$486/$18

= 27

Hence total 27 appliances lucy sold.

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∠RQT is a straight angle. What are m∠RQS and m∠TQS?

Answers

Answer:

         m∠RQS = 102°

         m∠TQS = 78°

Step-by-step explanation:

    A straight angle is equal to 180 degrees. We will create an equation to solve for x.

         9x° + 3° + 7x° + 1° = 180°

         16x° + 4° = 180°

         16x° = 176°

         x = 11

    Next, we will substitute this value into the expressions representing the angles.

         m∠RQS = 9x° + 3° = 9(11)° + 3° = 102°

         m∠TQS = 7x° + 1° = 7(11)° + 1° = 78°


15x + 6 = 10x + 21

x = 3
x = 5
x = 5
x = -5

Answers

15x + 6 = 10x + 21
-10x -10x

5x + 6 = 21
-6 -6

5x = 15, divide both by 5

x=3

The area of the triangle is 360 square millimeters
41 mm on both sides
The height is 40

What is the triangles base, b?

Answers

As per the given triangle, the base of the triangle, b, is 360 millimeters.

We may use the formula for the area of a triangle to determine the triangle's base, or b, given its 360 square millimetres in area, 41 mm for each side, and 40 millimetres in height.

The formula for calculating a triangle's area is:

Area = (base * height) / 2

Given that,

Area = 360 square millimetres

Height = 40 mm

Sides = 41 mm

So, 360 = (b * 40) / 2

720 = b * 2

b = 720 / 2

b = 360

Thus, the base of the triangle is 360 mm.

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through (-2, 1), perp to y=2x-5​

Answers

Answer:

y = -1/2x

Step-by-step explanation:

Currently, y = 2x - 5 is in slope-intercept form, whose general equation is y = mx + b, where

(x , y) is any point on the line,m is the slope,and b is the y-intercept.

The slopes of perpendicular lines are negative reciprocals of each other.  We can show this with the following formula;

m2 = -1 / m1, where

m2 is the slope of the line we're trying to find, and m1 is the slope of the line we're given.

Finding the slope of the other line:

Since 2 is the slope of y = 2x - 5, we can plug in 2 for m1 in perpendicular slope formula to find m2, the slope of the other line:

m2 = -1 / 2

m2 = -1/2

Thus, the slope of the other line is m = -1/2.

Finding the y-intercept of the other line:

We can find the y-intercept of the other line (i.e., b in the slope-intercept equation) by plugging in (-2, 1) for x and y and -1/2 for m in the slope-intercept form:

1 = -1/2(-2) + b

1 = 1 + b

0 = b

Thus, y = -1/2x is the line that passes through (-2, 1) and is perpendicular to y = 2x - 5.

What is the balance after three years on a CD with an initial investment of $2,200 and a 2.95% interest rate?

Answers

The remaining balance on a CD with a $2,200 initial investment and a 2.95% interest rate after three years would be roughly $2,393.10.

To solve this problem

The compound interest formula is as follows:

Balance = Principal * (Rate/100 + Rate * 1)Time

Where

The initial investment is the principalRate is the period-to-period interest rateThe amount of periods makes up time

Principal (P) is equal to $2,200.

Rate (R) = 2.95% = 2.95/100 = 0.0295 in decimal form.

Time (T) = 3 years.

The following formula is substituted for the values:

Balance =[tex]$2,200 * (1 + 0.0295)^3.[/tex]

Exponent calculation:

Balance = [tex]$2,200 * (1,0295)^3[/tex]

Calculating the result:

Balance ≈ $2,200 * 1.089135

Balance ≈ $2,393.10

So, the remaining balance on a CD with a $2,200 initial investment and a 2.95% interest rate after three years would be roughly $2,393.10.

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what is the equation of a line that passes through the points (2,5) and (4,3)

Answers

The equation of a line that passes through points (2,5) and (4,3) is

y = -x+7.

Finding the equation of a line:

First, we need to find out the slope for the given points.

(X1,Y1) = (2,5)

(X2,Y2) = (4,3)

formula for slope(m) = [tex]\frac{Y2 - Y1}{X2 - X1}[/tex]

substitute the points in the above formula

[tex]\frac{3 - 5}{4 - 2}[/tex] = [tex]\frac{-2}{2}[/tex]

[tex]\frac{-2}{2}[/tex] = -1

slope for the given points(m) = -1.

m = -1

The equation of a line is y-y1 = m(x-x1), where x and y are variables.

substituting the values in the above equation then :

y-5 = -1(x-2)

y-5 = -x+2

y+x = 2+5

x+y = 7

y = -x+7

Therefore, the equation of the line passing through the points (2,5) and (4,3) is y = -x+7

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Write an expression using the distributed property to dind the product of 7x63

Answers

The product of the expression 7 x 63 is 441.

We have,

To find the product of 7 x 63 using the distributive property, we can break down 63 as the sum of its factors, such as 60 and 3:

7 x 63 = 7 x (60 + 3)

Now, we can apply the distributive property by multiplying 7 to each term inside the parentheses:

7 x (60 + 3) = 7 x 60 + 7 x 3

Simplifying further:

7 x 60 + 7 x 3 = 420 + 21

Therefore,

The product of 7 x 63 is 441.

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7 students are running for student council. how many different ways can their names be listed on the ballot

Answers

Step-by-step explanation:

7! = 5040 ways

Stephanie wanted to solve the equation 16=3x+1. Which inverse operations should she use to find the solution?

Answers

Answer:

Subtraction and Division

Step-by-step explanation:

Inverse operations help find the solution to equations.

Defining Inverse Operations

Firstly, let's define an operation. An operation in math is a function that can manipulate a value. Inverse operations are operations that are opposite operations that undo each other. For example, addition and subtraction are inverse operations because subtraction undoes addition. Multiplication and division are also inverse operations.

Solving the Equation

The equation 16 = 3x + 1 involves both addition and multiplication. So, to solve this, we can use the inverse operations of subtraction and division. First, subtract 1 from both sides.

15 = 3x

Then, divide both sides by 3.

5 = x

This shows that by using subtraction and division, we can undo the addition and multiplication used in the equation. This allows us to find the value of x.

Determine the first five terms of the following generalized Fibonacci sequence. Please enter the five terms in the boxes provided in sequential order. Please simplify your solution.

Answers

The first five terms of the following generalized Fibonacci sequence are -19, 14, -5, 9, 4

Finding the first five terms of the following generalized Fibonacci sequence

From the question, we have the following parameters that can be used in our computation:

The generalized Fibonacci sequence

In the sequence, we can see that the last two terms are added to get the new term

Also, we have

a(1) = -19

a(2) = 14

Using the above as a guide, we have the following:

a(3) = -19 + 14 = -5

a(4) = -5 + 14 = 9

a(5) = 9 - 5 = 4

Hence, the first five terms of the following generalized Fibonacci sequence are -19, 14, -5, 9, 4

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A rectangular tree lot must have a perimeter of 100 uards and an area of at least 500 square yards. Describe the possible lengths of the tree lot.

Answers

The possible lengths of the tree lot are 25 + 5√5 yards and 25 - 5√5 yards.

Let's denote the length of the rectangular tree lot as "l" and the width as "w".

We know that the perimeter of a rectangle is given by the formula:

Perimeter = 2(l + w)

Given that the perimeter of the tree lot must be 100 yards, we can write the equation as:

2(l + w) = 100

Next, we know that the area of a rectangle is given by the formula:

Area = l × w

Given that the area of the tree lot must be at least 500 square yards, we can write the inequality as:

l × w ≥ 500

Now, let's solve the equations simultaneously to find the possible lengths of the tree lot.

Perimeter equation:

2(l + w) = 100

l + w = 50

w = 50 - l

Area inequality:

l × w ≥ 500

Substituting the value of w from the perimeter equation into the area inequality, we have:

l × (50 - l) ≥ 500

50l - l^2 ≥ 500

l^2 - 50l + 500 ≥ 0

Now, we need to find the values of l that satisfy the inequality. Since the coefficient of the squared term is positive, the graph of this quadratic opens upward. This means that the values of l that satisfy the inequality will be either the entire range of possible values or a portion of it.

To find the possible lengths, we can either factor the quadratic or use the quadratic formula. Let's use the quadratic formula:

l = (-(-50) ± √((-50)^2 - 4(1)(500))) / (2(1))

l = (50 ± √(2500 - 2000)) / 2

l = (50 ± √500) / 2

l = (50 ± 10√5) / 2

l = 25 ± 5√5

Therefore, the possible lengths of the tree lot are 25 + 5√5 yards and 25 - 5√5 yards.

In summary, the possible lengths of the rectangular tree lot are 25 + 5√5 yards and 25 - 5√5 yards, respectively.

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What is the balance after 4 years on $2000 at 4%

Answers

The balance after 4 years on $2000 at 4% is equal to $2320.

How to calculate the simple interest and future value?

In Mathematics, simple interest can be calculated by using this formula:

S.I = PRT or S.I = A - P

Where:

S.I represents the simple interest.P is the principal or starting amount.R is the interest rate.A is the future value.T represents the time measured in years.

Substituting the given parameters into the simple interest formula, we have;

S.I = 2000 × 4/100 × 4

S.I = 2000 × 0.04 × 4

S.I = $320.

Next, we would calculate the future value as follows;

Future value, A = S.I + P

Future value, A = $320 + $2000

Future value, A = $2320.

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Given f(x) = log2 (x+2), complete the table of values for the function -f(x) - 3. Show your work.

Answers

Answer:

-6

Step-by-step explanation:

If we convert the first function to the second form we get f(x) = -log2 (x+2) - 3. If we replace x with 6 we get ( -log2 8 ) -3. -log2 8 is equal to -3. -3 - 3 = -6.

factor completely using distributive law -14-(-8)

Answers

Answer: To factor the expression -14 - (-8) completely using the distributive law, we need to simplify it first.

Remember that when we subtract a negative number, it is equivalent to adding the positive number. Therefore, -(-8) is the same as +8.

So the expression becomes:

-14 + 8

To factor it further using the distributive law, we can rewrite the addition as multiplication by distributing the -14 to both terms:

(-14) + (8) = -14 * 1 + (-14) * 8

This can be simplified as:

-14 + 8 = -14 * 1 + (-14) * 8 = -14 + (-112)

Finally, we can add the two negative numbers to get the result:

-14 + (-112) = -126

Therefore, the expression -14 - (-8) factors completely as -126.

Which expression represents the total surface area of the prism shown?

Answers

The  expression represents the total surface area of the prism is

2 (5 * 7) + 2 (4 * 7) +  2  (4 * 5)

How to solve for the TSA of the prism

The term "TSA" stands for "Total Surface Area" of a prism. The Total Surface Area represents the  sum of the areas of all the faces (including the bases) of the prism.

for the rectangular prism, the Total Surface Area can be calculated using the formula:

TSA = 2lw + 2lh + 2wh

where

l = 5

w = 4

h = 7

plugging in the values gives

TSA = 2 (5 * 7) + 2 (4 * 7) +  2  (4 * 5)

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Find the mean of 8, 14, 22, 7, 2, 11, 25, 7, 5, 9

Answers

The mean of the given set of numbers is 11.

To find the mean (average) of a set of numbers, we sum up all the numbers and divide the sum by the total count of numbers.

Given the set of numbers: 8, 14, 22, 7, 2, 11, 25, 7, 5, 9

To find the mean, we add up all the numbers:

8 + 14 + 22 + 7 + 2 + 11 + 25 + 7 + 5 + 9 = 110

Next, we divide the sum by the total count of numbers, which is 10:

110 / 10 = 11

Therefore, the mean of the given set of numbers is 11.

The mean is a measure of central tendency and represents the average value of the data set.

In this case, it indicates that, on average, the numbers in the set tend to cluster around the value of 11.

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11 players are going to practice in the batting cage. how many different orders are possible

Answers

Answer:

Step-by-step explanation:

Every year, the cost of solar panels drops by roughly 6%. If solar panels currently cost $5,918 per kilowatt, what will the per-kilowatt cost be in 8 years?

Answers

[tex]\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &5918\\ r=rate\to 6\%\to \frac{6}{100}\dotfill &0.06\\ t=years\dotfill &8\\ \end{cases} \\\\\\ A = 5918(1 - 0.06)^{8} \implies A = 5918( 0.94 )^{8}\implies A \approx 3607.43[/tex]

Point A is translated 2 units up and 5 units to the right, where it now overlaps point B(3,-1)

Answers

Point A will have coordinates (-2, -3), which overlaps with the coordinates of Point B (3, -1).

To determine the new coordinates of Point A after the translation, we can start with the coordinates of Point B and apply the inverse translation.

Given that Point B has the coordinates (3, -1), we know that Point A after translation will have the same coordinates. We need to determine the inverse translation that will bring Point B back to its original position, and then apply that inverse translation to Point B.

The inverse translation of moving 2 units up and 5 units to the right is moving 2 units down and 5 units to the left. Therefore, we need to subtract 2 from the y-coordinate and subtract 5 from the x-coordinate of Point B.

Applying this inverse translation to Point B (3, -1), we have:

New x-coordinate of Point A = 3 - 5 = -2

New y-coordinate of Point A = -1 - 2 = -3

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A water sample shows 0.052 grams of some trace element for every cubic centimeter of water. Robert uses a container in the shape of a right cylinder with a radius of 8.7 cm and a height of 17.3 cm to collect a second sample, filling the container all the way. Assuming the sample contains the same proportion of the trace element, approximately how much trace element has Robert collected? Round your answer to the nearest tenth.

Answers

To calculate the amount of trace element collected by Robert, we need to find the volume of the cylinder-shaped container. Rounded to the nearest tenth, Robert has collected approximately 211.4 grams of the trace element in the second sample.

To calculate the amount of trace element collected by Robert, we need to find the volume of the cylinder-shaped container and then multiply it by the concentration of the trace element.

The volume of a cylinder is given by the formula:

V = π * r^2 * h

where V is the volume, π is approximately 3.14159, r is the radius, and h is the height.

Given:

Radius (r) = 8.7 cm

Height (h) = 17.3 cm

Concentration of trace element = 0.052 grams/cm³

Substituting these values into the volume formula:

V = 3.14159 * (8.7 cm)^2 * 17.3 cm

V ≈ 4068.57196 cm³

Now, we can calculate the amount of trace element collected by multiplying the volume by the concentration:

Amount of trace element = V * concentration

Amount of trace element ≈ 4068.57196 cm³ * 0.052 grams/cm³

Amount of trace element ≈ 211.42941792 grams

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Mathematicias pls help me ples

Answers

This problem is relatively simple. Before we begin, it might be beneficial to imagine the graph as a vertical number line. Imagining it this way makes it easy to count the units between them and gives you the answer: [tex]$\boxed{4}$[/tex].

Here's a slightly more advanced way to think about it:

The example question tells us to subtract the distance between the two points. The formula for this is [tex]\sqrt{\big{(}(x_{2}-x_{1})+(y_{2}-y_{1})\big{)}^2[/tex], but for this question, let's say that it is [tex]\sqrt{(y_{2}-y_{1})^2[/tex], or, to simplify it even more, [tex]$|y_{2}-y_{1}|$[/tex]. Now that we know the formula, we can substitute our y-values into the last formula and solve. Let's say that Point C is our first point and Point D is our second.

[tex]\big{|}(-8)-(-4)\big{|} = \big{|}-8+4\big{|} = \big{|}-4\big{|} = \boxed{4}[/tex] , so [tex]$4\text{ units}$[/tex] is our answer.

Disclaimer: Neither of the last two formulas I provided is the actual formula, just a version of the Distance Formula that might be easier to understand. The first formula is the actual thing, but you will encounter this in math later in life, probably around 8th or 9th grade.

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