# What do they mean by this plz help me

QUESTION POSTED AT 10/10/2019 - 07:33 PM

QUESTION POSTED AT 10/10/2019 - 07:33 PM

Slope basically means the difference between the two. 86-71=15. What that mean is that its increasing by the time currency. Hoped this helped.

It looks like for all of these we will be using the Pythagorean theorem.

If you don't know what this is or how to apply it, go to the website**"Khan Academy"** and watch his video(s) on it. I would suggest going to that site whenever you don't understand something in math :)

I'll just be giving you the answers and won't explain what I'm doing, but**please do go to Khan Academy to find out how to do it on your own!!**

Anyway, onto the answers.

1) a = 12.5, b = 5.7, c = 13.7.

2) 24

3) 19.2

4) 6.4

5) 18.7

6) 98.5

7) 1.9

Hope this helps!!!

If you don't know what this is or how to apply it, go to the website

I'll just be giving you the answers and won't explain what I'm doing, but

Anyway, onto the answers.

1) a = 12.5, b = 5.7, c = 13.7.

2) 24

3) 19.2

4) 6.4

5) 18.7

6) 98.5

7) 1.9

Hope this helps!!!

ANSWERED AT 17/10/2019 - 09:12 AM

QUESTION POSTED AT 17/10/2019 - 09:12 AM

2(2x - 4) + x = 7

Distribute the 2

4x - 8 + x = 7

combine like terms

5x - 8 = 7

add 8 to both sides

5x = 15

divide both sides by 5

x =3

CHECK

2(2*3-4) + 3 ?=? 7

2(6-4) + 3 ?=? 7

2(2) + 3 ?=? 7

7 = 7 CHECKS

Distribute the 2

4x - 8 + x = 7

combine like terms

5x - 8 = 7

add 8 to both sides

5x = 15

divide both sides by 5

x =3

CHECK

2(2*3-4) + 3 ?=? 7

2(6-4) + 3 ?=? 7

2(2) + 3 ?=? 7

7 = 7 CHECKS

ANSWERED AT 17/10/2019 - 09:11 AM

QUESTION POSTED AT 17/10/2019 - 09:11 AM

12,25 = 0,5q + 3,75

12,25 - 3,75 = 0,5q

8,5 = 0,5q

q = 8,5 : 0,5

**q = 17**

----------

12,25 - 3,75 = 0,5q

8,5 = 0,5q

q = 8,5 : 0,5

----------

ANSWERED AT 17/10/2019 - 09:03 AM

QUESTION POSTED AT 17/10/2019 - 09:03 AM

Just work from left to right identifying the points marked...

{(-3,-2), (-1,1), (1,0), (2,3), (4,-2)}

{(-3,-2), (-1,1), (1,0), (2,3), (4,-2)}

ANSWERED AT 17/10/2019 - 08:54 AM

QUESTION POSTED AT 17/10/2019 - 08:54 AM

The answer is b. because√-68 could be factorized in -2√17

so 2+- -2√17/12 is the same that 1+- -√17/6

so 2+- -2√17/12 is the same that 1+- -√17/6

ANSWERED AT 17/10/2019 - 08:52 AM

QUESTION POSTED AT 17/10/2019 - 08:52 AM

The Answer is B. Because 2X2=4x2=8

ANSWERED AT 17/10/2019 - 08:43 AM

QUESTION POSTED AT 17/10/2019 - 08:43 AM

-|-3p| when p=5

-|-3*5|

-|-15|

-(15)

-15

-|-3*5|

-|-15|

-(15)

-15

ANSWERED AT 17/10/2019 - 08:40 AM

QUESTION POSTED AT 17/10/2019 - 08:40 AM

Im pretty sure its D because if the angle of the segment is going downward then its automatically a negative. Also since it intercepted in the origin, (0,0), then its no fraction.

ANSWERED AT 17/10/2019 - 08:36 AM

QUESTION POSTED AT 17/10/2019 - 08:36 AM

Let's use the slope intercept form of a line which is:

y=mx+b where m=slope and b=y-intercept.

Mathematically m=(y2-y1)/(x2-x1) and the y-intercept is just the value of y when x is equal to zero, where the line intercepts the y axis...

First you want to find the slope by finding two clearly identifiable points on the graph...I'll pick (4,4) and (0,1), now we can calculate the slope or "m"...

m=(4-1)/(4-0)=3/4 so now we can say our line is:

y=0.75x+b, using point (4,4) we can now solve for b.

4=0.75(4)+b

4=3+b

b=1 so the line is"

y=0.75x+1

y=mx+b where m=slope and b=y-intercept.

Mathematically m=(y2-y1)/(x2-x1) and the y-intercept is just the value of y when x is equal to zero, where the line intercepts the y axis...

First you want to find the slope by finding two clearly identifiable points on the graph...I'll pick (4,4) and (0,1), now we can calculate the slope or "m"...

m=(4-1)/(4-0)=3/4 so now we can say our line is:

y=0.75x+b, using point (4,4) we can now solve for b.

4=0.75(4)+b

4=3+b

b=1 so the line is"

y=0.75x+1

ANSWERED AT 17/10/2019 - 08:32 AM

QUESTION POSTED AT 17/10/2019 - 08:32 AM

The equation is 10,000 x 5

so we know that 1 x 5 = 5

so just add Four zeros after the 5 which is 50,000

so the answer is 50,000.

Hope this helps!

so we know that 1 x 5 = 5

so just add Four zeros after the 5 which is 50,000

so the answer is 50,000.

Hope this helps!

ANSWERED AT 17/10/2019 - 08:16 AM

QUESTION POSTED AT 17/10/2019 - 08:16 AM

-6.6(-4.3)

**=28.38**

I hope this helps.

I hope this helps.

ANSWERED AT 17/10/2019 - 08:03 AM

QUESTION POSTED AT 17/10/2019 - 08:03 AM

Let's use a number line to solve this. (see image)

The answer is**10.9**

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)

The answer is

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)

ANSWERED AT 17/10/2019 - 08:03 AM

QUESTION POSTED AT 17/10/2019 - 08:03 AM

Idk if this is the answer 28.38

ANSWERED AT 17/10/2019 - 08:03 AM

QUESTION POSTED AT 17/10/2019 - 08:03 AM

It's the ellipse (3rd one). Why it's not a function?

If you draw a vertical line and if this line intercepts the figure in more than one point, then this figure doesn't represent a function (but a relation instead)

If you draw a vertical line and if this line intercepts the figure in more than one point, then this figure doesn't represent a function (but a relation instead)

ANSWERED AT 17/10/2019 - 07:24 AM

QUESTION POSTED AT 17/10/2019 - 07:24 AM

**Answer:**

**⇒ x < $2.75**

**Step-by-step explanation:**

Amount of money spent on lunch = $5

Amount of money used in buying turkey sandwich = $2.25

Let the money left for spend be x

So, The inequality that represents how much more money you can spend is given by :

x < 5 - 2.25

This is the required inequality

Now we need to solve this inequality.

**⇒ x < $2.75**

**Hence, This is the inequality which is the solution of the resultant inequality.**

ANSWERED AT 17/10/2019 - 07:17 AM

QUESTION POSTED AT 17/10/2019 - 07:17 AM

6x² - 5x + -21 = 0

Because this whole equation equals zero, we must simply factorize the first half of the equation, or the left side.

(3x - 7)(2x + 3) = 0

I was never really taught a specific way to factorize, so I usually just guess and check when factorizing. It usually takes a long time, it always gives you the tight answer.

Then, take each equation and make it equal zero.

3x - 7 = 0 AND 2x + 3 = 0

3x - 7 = 0

Add 7 to both sides.

3x = 7

Divide both sides by 3.

x = 7/3

Now, we do our second equation.

2x + 3 = 0

Subtract 3 from both sides.

2x = -3

Divide both sides by 2.

x = -3/2

So, x = 7/3 AND x = -3/2

So, your answer is C) x = 7/3, x = -3/2

~Hope I helped!~

Because this whole equation equals zero, we must simply factorize the first half of the equation, or the left side.

(3x - 7)(2x + 3) = 0

I was never really taught a specific way to factorize, so I usually just guess and check when factorizing. It usually takes a long time, it always gives you the tight answer.

Then, take each equation and make it equal zero.

3x - 7 = 0 AND 2x + 3 = 0

3x - 7 = 0

Add 7 to both sides.

3x = 7

Divide both sides by 3.

x = 7/3

Now, we do our second equation.

2x + 3 = 0

Subtract 3 from both sides.

2x = -3

Divide both sides by 2.

x = -3/2

So, x = 7/3 AND x = -3/2

So, your answer is C) x = 7/3, x = -3/2

~Hope I helped!~

ANSWERED AT 17/10/2019 - 05:21 AM

QUESTION POSTED AT 17/10/2019 - 05:21 AM

For the rectangle you do the 7•4 which equals 28

For the triangle you do 3•5 which equals 15

28+15=43

For the triangle you do 3•5 which equals 15

28+15=43

ANSWERED AT 17/10/2019 - 05:10 AM

QUESTION POSTED AT 17/10/2019 - 05:10 AM

The median does represent a typical quiz score for Iris because since 8 is the median and on the chart she has scored 8 four different times while the other she did not score as many

ANSWERED AT 17/10/2019 - 05:10 AM

QUESTION POSTED AT 17/10/2019 - 05:10 AM

We are being asked what would be the greatest value of x that would satisfy the expression 8.904x < 18.037. Let us try both 1 and 2, the solution is shown below:

For x=1, we have:

8.904 *1 < 18.037

8.904 < 18.037

For x=2, we have:

8.904*2 < 18.037

17.808 < 18.037

We could see the solution that the greatest possible value of x is 2.

For x=1, we have:

8.904 *1 < 18.037

8.904 < 18.037

For x=2, we have:

8.904*2 < 18.037

17.808 < 18.037

We could see the solution that the greatest possible value of x is 2.

ANSWERED AT 17/10/2019 - 05:03 AM

QUESTION POSTED AT 17/10/2019 - 05:03 AM

Hello!

So first off, let's define what a median is: in the list of answers (listed from least to greatest) the number i the middle is the median.

Just like I said, line up the numbers in order of smallest to largest:

12, 14, 14, 14, 15, 16, 16, 18, 18, 19, 21, 22

Now find the number in the middle. It should be 16.

*Just a note for the future: when there's an odd number of integers, the median will just be that number in the middle. Example: 1,4,5; 4 is the median. Now, if there are an even number of integers, the median will be the average between the two middle numbers. Example: 1,4,5,7; the two numbers in the middle are 4 and 5. Take the average between the two (4+5)/2 and you would get 4.5*

So first off, let's define what a median is: in the list of answers (listed from least to greatest) the number i the middle is the median.

Just like I said, line up the numbers in order of smallest to largest:

12, 14, 14, 14, 15, 16, 16, 18, 18, 19, 21, 22

Now find the number in the middle. It should be 16.

*Just a note for the future: when there's an odd number of integers, the median will just be that number in the middle. Example: 1,4,5; 4 is the median. Now, if there are an even number of integers, the median will be the average between the two middle numbers. Example: 1,4,5,7; the two numbers in the middle are 4 and 5. Take the average between the two (4+5)/2 and you would get 4.5*

ANSWERED AT 17/10/2019 - 05:00 AM

QUESTION POSTED AT 17/10/2019 - 05:00 AM

9.945*10^30 Kg - 1.7901*10^32 Kg

This is on average what the mass of a black hole.

This is on average what the mass of a black hole.

ANSWERED AT 17/10/2019 - 04:51 AM

QUESTION POSTED AT 17/10/2019 - 04:51 AM

Hello :

x²- 2x+10 = 0

(x²-2x+1) -1 +10

(x-1)² +9 = 0

(x-1)² = -9 ... .(no real solution because : (x-1)² ≥ 0 )

x²- 2x+10 = 0

(x²-2x+1) -1 +10

(x-1)² +9 = 0

(x-1)² = -9 ... .(no real solution because : (x-1)² ≥ 0 )

ANSWERED AT 17/10/2019 - 04:27 AM

QUESTION POSTED AT 17/10/2019 - 04:27 AM

Rate=[14-(-2)]/(9-5)=16/4=4

f/g = 2x(2x+3)/[(x+5)(2x+3)]= 2x/(x+5)

f=g⇒x2-6x+8=x-2⇒x2-7x+10=0⇒(x-2)(x-5)=0 so, x=2,5 are the solutions

f/g = 2x(2x+3)/[(x+5)(2x+3)]= 2x/(x+5)

f=g⇒x2-6x+8=x-2⇒x2-7x+10=0⇒(x-2)(x-5)=0 so, x=2,5 are the solutions

ANSWERED AT 17/10/2019 - 04:19 AM

QUESTION POSTED AT 17/10/2019 - 04:19 AM

1. 1 by 0.305

2. 1 by 0.946

3. 1 by 0.454

4. 1 by 3.79

Basically, you multiply the measurement you got to what you are trying to convert it to, like I listed above ^.

2. 1 by 0.946

3. 1 by 0.454

4. 1 by 3.79

Basically, you multiply the measurement you got to what you are trying to convert it to, like I listed above ^.

ANSWERED AT 17/10/2019 - 03:34 AM

QUESTION POSTED AT 17/10/2019 - 03:34 AM

The Range is the difference between the Largest Number and the Smallest Number.

25 - 9 =16

25 - 9 =16

ANSWERED AT 17/10/2019 - 03:29 AM

QUESTION POSTED AT 17/10/2019 - 03:29 AM

Thousand place, if you move the six to the left and don't worry about the other numbers so if you only focus on the 6 you can figure out its the thousandth place.

ANSWERED AT 17/10/2019 - 01:40 AM

QUESTION POSTED AT 17/10/2019 - 01:40 AM

1)Rewrite the table:

70, 49, 34.3, 24.01, 11.807 {The original size of the wound =70}

2) write the quotient of each number by the number before & notice the value:

49/70= 0.7

34.3/49 = 0.7

24.01/34.3 =0.7

16.0807/24.01 = 0.67 ≈0.7

You notice this is a geometric progression with r 0.7

The last term in a GP =ar^⁽ⁿ⁻¹⁾

3) Domain and Range of this function:

Last term = a₁.rⁿ⁻¹. let last term be y==> f(n) = y =70(0.7)ⁿ⁻¹

or f(n) = y = 70(0.7)ⁿ / 0.7==> f(n) = [(0.7)ⁿ ]/ 100.

This is a decreasing exponential function where the coefficient

raised to n is < 1.

The domain is for all n>= 0.

When n→∞, f(n)→0; For n=0==>f(n) =70. So the range of f(n) is:<=70

70, 49, 34.3, 24.01, 11.807 {The original size of the wound =70}

2) write the quotient of each number by the number before & notice the value:

49/70= 0.7

34.3/49 = 0.7

24.01/34.3 =0.7

16.0807/24.01 = 0.67 ≈0.7

You notice this is a geometric progression with r 0.7

The last term in a GP =ar^⁽ⁿ⁻¹⁾

3) Domain and Range of this function:

Last term = a₁.rⁿ⁻¹. let last term be y==> f(n) = y =70(0.7)ⁿ⁻¹

or f(n) = y = 70(0.7)ⁿ / 0.7==> f(n) = [(0.7)ⁿ ]/ 100.

This is a decreasing exponential function where the coefficient

raised to n is < 1.

The domain is for all n>= 0.

When n→∞, f(n)→0; For n=0==>f(n) =70. So the range of f(n) is:<=70

ANSWERED AT 17/10/2019 - 01:35 AM

QUESTION POSTED AT 17/10/2019 - 01:35 AM

**Answer:**

use a computer to randomly select 30 student IDs from all her students

**Step-by-step explanation:**

ANSWERED AT 17/10/2019 - 01:31 AM

QUESTION POSTED AT 17/10/2019 - 01:31 AM

1)Rewrite the table:

70, 49, 34.3, 24.01, 11.807

2) write the quotient of each number by the number before & notice the value:

49/70= 0.7

34.3/49 = 0.7

24.01/34.3 =0.7

16.0807/24.01 = 0.67 ≈0.7

You notice this is a geometric progression with r 0.7

The last term in a GP =ar^(n-1)

a=70; r= 0.7 n-1= number of terms (days -1)

For last term = 1 ==> then 1=70(0.7)^(n-1)

1/70 = (0.7)^(n-1)

log(1/70) =log[(0.7)^(n-1) ==> log1 - log 70 = (n-1) log(0.7) & you will find that it need 11.92 days to equal on & to be less than it will necessitate 12 Days

70, 49, 34.3, 24.01, 11.807

2) write the quotient of each number by the number before & notice the value:

49/70= 0.7

34.3/49 = 0.7

24.01/34.3 =0.7

16.0807/24.01 = 0.67 ≈0.7

You notice this is a geometric progression with r 0.7

The last term in a GP =ar^(n-1)

a=70; r= 0.7 n-1= number of terms (days -1)

For last term = 1 ==> then 1=70(0.7)^(n-1)

1/70 = (0.7)^(n-1)

log(1/70) =log[(0.7)^(n-1) ==> log1 - log 70 = (n-1) log(0.7) & you will find that it need 11.92 days to equal on & to be less than it will necessitate 12 Days

ANSWERED AT 17/10/2019 - 01:26 AM

QUESTION POSTED AT 17/10/2019 - 01:26 AM

JT IS 3X+ 5 IT LEGIT SAYS IT

ANSWERED AT 16/10/2019 - 11:36 PM

QUESTION POSTED AT 16/10/2019 - 11:36 PM