# What type of graph is best to use to show changes over time? a. Bar Graph b. Line Graph c. Histogram d. Circle Graphs

QUESTION POSTED AT 16/01/2020 - 05:42 AM

QUESTION POSTED AT 16/01/2020 - 05:42 AM

The correct answer is B. Line Graph

Ok so some basic rules

so

so

ANSWERED AT 19/02/2020 - 05:17 PM

QUESTION POSTED AT 19/02/2020 - 05:17 PM

The answer would be B simply because it sounds more reasonable.

ANSWERED AT 19/02/2020 - 04:59 PM

QUESTION POSTED AT 19/02/2020 - 04:59 PM

This data set has** zero skew as it is symmetric.**

We know that the symmetry exist in a data when the mean, median and mode of the data is same.

i.e. we are given a set of data as:

{2, 3, 2, 2, 0, 5, 2, 1, 1, 3}

- On arranging the data in increasing order we get :

0 1 1 2 **2 2** 2 3 3 5

Hence, the value that occur in the middle is: 2

Hence, we have **Median=2**

- Also, the mean is calculated as follows:

Hence,** Mean=2.1**

- Also, the mode of the data is the most frequently occurring data point in the set.

Here 2 occurs most number of times i.e. 4 times and hence we have:

**Mode=2**

Now, as the Mean, Median and Mode of the data are approximately same.

** Hence, we get the data is symmetric and hence has a zero skew.**

ANSWERED AT 19/02/2020 - 04:25 PM

QUESTION POSTED AT 19/02/2020 - 04:25 PM

A line contains the points (82, −96) and (87, −86) .What is the slope of the line in simplified form?

Here are the points: (82, −96) and (87, −86) You could let x1=82 and x2=87

Here are the points: (82, −96) and (87, −86) You could let x1=82 and x2=87

ANSWERED AT 19/02/2020 - 04:21 PM

QUESTION POSTED AT 19/02/2020 - 04:21 PM

The slope is 0

m=0

the line is flat at y=3

m=0

the line is flat at y=3

ANSWERED AT 19/02/2020 - 03:58 PM

QUESTION POSTED AT 19/02/2020 - 03:58 PM

Huh well, you can do 5 times x = 15 or 15/5 = x

x is the answer

x is the answer

ANSWERED AT 19/02/2020 - 03:57 PM

QUESTION POSTED AT 19/02/2020 - 03:57 PM

Perpendicular lines will have negative reciprocal slopes. Example : if u r given a slope of 1/3, to find the negative reciprocal, flip the slope and change the sign. So the negative reciprocal of 1/3 is -3/1 or just -3. So slope 1/3 and slope -3 are perpendicular.

==================

equation 2 :

4x + 2y = 6

2y = -4x + 6

y = -2x + 3...the slope here is -2....a perpendicular line will have a slope of 1/2.

y = (a/3)x - 6......so we have to make a/3 = 1/2......1.5/3 = 1/2

so a = 1.5

===================

eq. 2 : 3/4x + 2

not sure what the entire equation is.....but it looks to have a slope of 3/4. That means a perpendicular line will have a slope of -4/3.

3y + ax = 9

3y = -ax + 9

y = (-a/3)x + 3.....therefore, a has to be 4

==================

equation 2 :

4x + 2y = 6

2y = -4x + 6

y = -2x + 3...the slope here is -2....a perpendicular line will have a slope of 1/2.

y = (a/3)x - 6......so we have to make a/3 = 1/2......1.5/3 = 1/2

so a = 1.5

===================

eq. 2 : 3/4x + 2

not sure what the entire equation is.....but it looks to have a slope of 3/4. That means a perpendicular line will have a slope of -4/3.

3y + ax = 9

3y = -ax + 9

y = (-a/3)x + 3.....therefore, a has to be 4

ANSWERED AT 19/02/2020 - 02:18 PM

QUESTION POSTED AT 19/02/2020 - 02:18 PM

Using any specific formula or what?

ANSWERED AT 19/02/2020 - 01:41 PM

QUESTION POSTED AT 19/02/2020 - 01:41 PM

we know that

if two lines are perpendicular

then the product of their slopes is equal to minus one

so

in this problem we have

the value of m2 must be equal to

we know that

The formula to calculate the slope between two points is equal to

__Find the slopes of each of ordered pairs and compare with m2__

__case a) __

Substitute in the formula

The slope is equal to m2

so

The ordered pair case a) could be points on a line that is perpendicular to the given line

__case b) __

Substitute in the formula

The slope is not equal to m2

so

The ordered pair case b) could not be points on a line that is perpendicular to the given line

__case c) __

Substitute in the formula

The slope is not equal to m2

so

The ordered pair case c) could not be points on a line that is perpendicular to the given line

__case d) __

Substitute in the formula

The slope is not equal to m2

so

The ordered pair case d) could not be points on a line that is perpendicular to the given line

__case e) __

Substitute in the formula

The slope is equal to m2

so

The ordered pair case e) could be points on a line that is perpendicular to the given line

therefore

__the answer is__

ANSWERED AT 19/02/2020 - 01:33 PM

QUESTION POSTED AT 19/02/2020 - 01:33 PM

AB/AC = BD / DC

x/ 36 = 18/24

x = 18x36 / 24

x = 27

AB = 27

x/ 36 = 18/24

x = 18x36 / 24

x = 27

AB = 27

ANSWERED AT 19/02/2020 - 01:27 PM

QUESTION POSTED AT 19/02/2020 - 01:27 PM

8=f/2=answer hope this helps

ANSWERED AT 19/02/2020 - 12:36 PM

QUESTION POSTED AT 19/02/2020 - 12:36 PM

All you need to do is divide:

108/4=27

4 goes into 108, 27 times

Hope this helped!! :)

108/4=27

4 goes into 108, 27 times

Hope this helped!! :)

ANSWERED AT 19/02/2020 - 12:32 PM

QUESTION POSTED AT 19/02/2020 - 12:32 PM

There exists the same question with the figure as shown in the attachment.

The given are:

g = 40 degrees

k = 45 degrees

Ask:

angle of " l "

So this is how to solve this:

Step 1:

Since CEF is an equilateral triangle, then each has 60 degrees.

i is equal to l because they are opposite angles

Step 2:

angle l is inside CEF, then the value of angle l is 60

The given are:

g = 40 degrees

k = 45 degrees

Ask:

angle of " l "

So this is how to solve this:

Step 1:

Since CEF is an equilateral triangle, then each has 60 degrees.

i is equal to l because they are opposite angles

Step 2:

angle l is inside CEF, then the value of angle l is 60

ANSWERED AT 19/02/2020 - 12:21 PM

QUESTION POSTED AT 19/02/2020 - 12:21 PM

-- State-A . . . Population = 1 · (1.08)ˣ

-- State-B . . . Population = 2 · (1.08)ˣ

' x ' = number of years after the original population

At the beginning, x=0.

Any quantity raised to the zero power = 1.

At the beginning, when x=0, the original populations were

State-A = 1 · 1 = 1

State-B = 2 · 1 = 2

The original population of State A**was half** of

the original population of State B.

-- State-B . . . Population = 2 · (1.08)ˣ

' x ' = number of years after the original population

At the beginning, x=0.

Any quantity raised to the zero power = 1.

At the beginning, when x=0, the original populations were

State-A = 1 · 1 = 1

State-B = 2 · 1 = 2

The original population of State A

the original population of State B.

ANSWERED AT 19/02/2020 - 11:53 AM

QUESTION POSTED AT 19/02/2020 - 11:53 AM

B. Calculate the value of MN

ANSWERED AT 19/02/2020 - 11:52 AM

QUESTION POSTED AT 19/02/2020 - 11:52 AM

$16/$20 = x%/100% (in a proportion)

Cross-multiply

1600 = 20x

Divide 1600 by 20

x = 80

80%/100%

Because you know the price decreased, you subtract 80 from 100 to find your answer

100 - 80 = 20% decrease in price

Hope this helps!

Cross-multiply

1600 = 20x

Divide 1600 by 20

x = 80

80%/100%

Because you know the price decreased, you subtract 80 from 100 to find your answer

100 - 80 = 20% decrease in price

Hope this helps!

ANSWERED AT 19/02/2020 - 10:31 AM

QUESTION POSTED AT 19/02/2020 - 10:31 AM

Hannah spends a total of 5 hours on the weekend practicing the violin. And on Saturday, she practiced 3/4 of that allotted time.

3/4 * 5 = 15/4 = 3 3/4

So, she spent 3 3/4 hours on Saturday.

3/4 * 5 = 15/4 = 3 3/4

So, she spent 3 3/4 hours on Saturday.

ANSWERED AT 19/02/2020 - 09:56 AM

QUESTION POSTED AT 19/02/2020 - 09:56 AM

-2/3 would be the answer. Calculate the differences or graph and find the slope!

ANSWERED AT 19/02/2020 - 09:21 AM

QUESTION POSTED AT 19/02/2020 - 09:21 AM

Y - y1 = m(x - x1)

slope(m) = -1/2

(-4,-2)...x1 = -4 and y1 = -2

now we sub

y - (-2) = -1/2(x - (-4) =

y + 2 = -1/2(x + 4) <=====

slope(m) = -1/2

(-4,-2)...x1 = -4 and y1 = -2

now we sub

y - (-2) = -1/2(x - (-4) =

y + 2 = -1/2(x + 4) <=====

ANSWERED AT 19/02/2020 - 01:12 AM

QUESTION POSTED AT 19/02/2020 - 01:12 AM

Y+3 = 4(x+1) since before you simplify its y-(-3)=4(x-(-1))

ANSWERED AT 19/02/2020 - 01:06 AM

QUESTION POSTED AT 19/02/2020 - 01:06 AM

First thing you should realize is that the only variable is x. Isolate x by adding 5 to both sides. This should give you

x = 5

This should have a line drawn straight down on the x-axis at x = 5

Hopes this helps :D

x = 5

This should have a line drawn straight down on the x-axis at x = 5

Hopes this helps :D

ANSWERED AT 19/02/2020 - 01:04 AM

QUESTION POSTED AT 19/02/2020 - 01:04 AM

F(x)= 1/5x - 17/5 is the answer

ANSWERED AT 19/02/2020 - 01:04 AM

QUESTION POSTED AT 19/02/2020 - 01:04 AM

The sample space for this event is {H1,H2,H3,H4,H5,H6,T1,T2,T3,T4,T5,T6}

There are 12 possibilities.

The probability that we get a T1 or T2 is 2/12 or 1/6.

There are 12 possibilities.

The probability that we get a T1 or T2 is 2/12 or 1/6.

ANSWERED AT 19/02/2020 - 01:01 AM

QUESTION POSTED AT 19/02/2020 - 01:01 AM

The answer is A.

tbch i plugged them into a graphing calculator... ,:D too tired atm

tbch i plugged them into a graphing calculator... ,:D too tired atm

ANSWERED AT 19/02/2020 - 01:00 AM

QUESTION POSTED AT 19/02/2020 - 01:00 AM

The equation in choice-'C' describes F(n).

ANSWERED AT 19/02/2020 - 12:59 AM

QUESTION POSTED AT 19/02/2020 - 12:59 AM

Remember the difference quotient

the deritivie of f(x)/g(x) is

so

q'(7)=

g(7)=2.5

g'(7)=0.5

f(7)=5

so

q'(7)=

q'(7)=

now find the slope of f(x) at x=7

take the deritive and evaluate

(try googling a deritive calculator)

or just ask me

basically

the answer is

just find the slope of f(x) at x=7 (that is the slope at that specitific point, not for the whole graph)

the deritivie of f(x)/g(x) is

so

q'(7)=

g(7)=2.5

g'(7)=0.5

f(7)=5

so

q'(7)=

q'(7)=

now find the slope of f(x) at x=7

take the deritive and evaluate

(try googling a deritive calculator)

or just ask me

basically

the answer is

just find the slope of f(x) at x=7 (that is the slope at that specitific point, not for the whole graph)

ANSWERED AT 19/02/2020 - 12:58 AM

QUESTION POSTED AT 19/02/2020 - 12:58 AM

2 × 2 is 4 count by 2's 2,4,6,8,10 hold up to fingers go 2,4 the anwser is 4

ANSWERED AT 19/02/2020 - 12:57 AM

QUESTION POSTED AT 19/02/2020 - 12:57 AM

To move te function up z units, add zto the whole equation

from

y=sqrt(x) to

y=sqrt(x)+2

parenth function moved up 2 units

my hands are cold so I don't type well

from

y=sqrt(x) to

y=sqrt(x)+2

parenth function moved up 2 units

my hands are cold so I don't type well

ANSWERED AT 19/02/2020 - 12:55 AM

QUESTION POSTED AT 19/02/2020 - 12:55 AM

11:59 a.m to 12:59 p.m. = 13 hrs....and 12:59 p.m to 1:01 p.m = 2 minutes....so the elapsed time is 13 hrs and 2 minutes

ANSWERED AT 19/02/2020 - 12:42 AM

QUESTION POSTED AT 19/02/2020 - 12:42 AM

circumference =2(pi)r=(pi)d

use this formula.

2*(pi)*56=351.85

use this formula.

2*(pi)*56=351.85

ANSWERED AT 19/02/2020 - 12:41 AM

QUESTION POSTED AT 19/02/2020 - 12:41 AM