When do you use point slope form

Answer:

50

Step-by-step explanation:

first of all thimk about how many 12s there is in 60 (which is 1hr=60)  and thats 5, so multiply 5 by 10 because in each 12 mins its 10 km which gives you 50 as the answer

Answer: (1,-3)

Step-by-step explanation:

Answer:

16 boxes

Step-by-step explanation:

160+50x=1000

Solve for the x and you'll get 16.8. Now, because you can't have a fraction of a box, and you can't go over the limit, the answer is 16 boxes.

(How to solve for x:

Get x by itself by subtracting 160 to both sides.

50x=1000-160

50x=840

Divide both sides by 50.

x=16.8)

Answer:

159

Step-by-step explanation:

35x-1 =-35 plus 34x20

Answer:

The rate of change of Function A is less than the rate of change of function B.

Other than that, everything else you put is correct.

Step-by-step explanation:

None.

Answer:

Option A, B and D are correct options.

Step-by-step explanation:

First we will find rate of change of function A and function B

Rate of Change of Function A

The formula used to calculate rate of change is: [tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}[/tex]

We have x_1=1, y_1=5, x_2=2, y_2=7

Putting values in formula and finding rate of change

[tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}\\Rate\:of\:Change=\frac{7-5}{2-1}\\Rate\:of\:Change=\frac{2}{1}\\Rate\:of\:Change=2[/tex]

So, Rate of change of Function A = 2

Now, finding y-intercept.

y-intercept is found by putting x =0

Looking at the function, we can write the equation: y=2x+3

Now, put x =0

y=2(0)+3

y=3

So, when x =0, y=3

So, y-intercept is 3 for function A.

Rate of Change of Function A

The formula used to calculate rate of change is: [tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}[/tex]

We have x_1=1, y_1=1, x_2=2, y_2=4

Putting values in formula and finding rate of change

[tex]Rate\:of\:Change=\frac{y_2-y_1}{x_2-x_1}\\Rate\:of\:Change=\frac{4-1}{2-1}\\Rate\:of\:Change=\frac{3}{1}\\Rate\:of\:Change=3[/tex]

So, Rate of change of Function B = 3

Now, finding y-intercept.

y-intercept is found by putting x =0

Looking at the graph, when x=0, y is -2

So, y-intercept is -2 for function B.

We get following answers:

Rate of change of Function A = 2

Rate of change of Function B = 3

y-intercept is 3 for function A.

y-intercept is -2 for function B.

So, The correct options are:

The rate of change of function A and B are positive

The rate of change of function A is less than the rate of change of function B. (Because 2 is less than 3)

The y-intercept of function A is positive, while y-intercept of function B is negative.

So, Option A, B and D are correct options.

Answer:

Hi! The correct answer is 3.25, 7.6 and 0.3!

Step-by-step explanation:

Answer:

113

Step-by-step explanation:

The area is π[tex]r^{2}[/tex], and pi is about 3. r is d/2 which is 12/2=6.

6^2 is 36 and 36*3 = 108. 113 is the closest, so that is the best estimate.

Answer:

x = -7

Step-by-step explanation:

-2x - 3x = -5x

so then its -5x - 15

you then add 15 to both sides which gives you -5x = 35

divide -5 from each side to get the answer

-7 = x

Step-by-step explanation:

-2x - 3x -15 = 20

-5x = 20 + 15

-5x = 35

x = 35/-5

x = -7

Answer:

273 tiles

Step-by-step explanation:

Given

Square tile

[tex]Side=\frac{1}{2} ft[/tex]

Bathroom floor

[tex]Length = 10\frac{1}{2}ft[/tex]

[tex]Width = 6\frac{1}{2}ft[/tex]

Required

Determine the number of tiles to cover the floor

First, we calculate the area of the floor:

[tex]A_{floor} = Length * Width[/tex]

[tex]A_{floor} = 10\frac{1}{2} * 6\frac{1}{2}[/tex]

Convert to decimals

[tex]A_{floor} = 10.5 * 6.5[/tex]

[tex]A_{floor} = 68.25ft^2[/tex]

Next, we calculate the area of the square tile:

[tex]A_{tile} = Side * Side[/tex]

[tex]A_{tile} = \frac{1}{2} * \frac{1}{2}[/tex]

Convert to decimal

[tex]A_{tile} = 0.5 * 0.5[/tex]

[tex]A_{tile} = 0.25ft^2[/tex]

The number of tiles is then calculated as:

[tex]Tiles = \frac{A_{floor}}{A_{tile}}[/tex]

[tex]Tiles = \frac{68.25ft^2}{0.25ft^2}[/tex]

[tex]Tiles = \frac{68.25}{0.25}[/tex]

[tex]Tiles = 273[/tex]

Answer:

48%

Step-by-step explanation:

(24/50)2

= 48/100

= 48%

Answer:

x = 10

Step-by-step explanation:

so first distribute the 3/4 to everything on the inside

3/4x + 1 1/2 = 9

now subtract 1 1/2 on both sides

3/4x = 7 1/2

Now divide both sides by 3/4

x = 7 1/2 divided by 3/4

x = 15/2 divided by 3/4

x = 15/2 times 4/3

x = 5/1 times 2/1

x = 10

Answer:

67 ≤ x ≤ 73

Step-by-step explanation:

The absolute value of a real number x is the non negative value of x. Therefore the absolute value of x (|x|) = x for x ≥ 0 and -x for x < 0.

An expression |x - a| = b signifies that x - a = b or -(x - a) = b

Given that |x − 70| ≤ 3, hence:

|x − 70| ≤ 3

x - 70 ≤ 3 or -(x - 70) ≤ 3

x ≤ 3 + 70 or x - 70 ≥ -3

x ≤ 73 or x ≥ -3 + 70

x ≤ 73 or x ≥ 67

67 ≤ x ≤ 73

Hence the solution of |x − 70| ≤ 3 is 67 ≤ x ≤ 73

Answer:

WHAT?!

Step-by-step explanation:

Answer: y=4/3x-8

Step-by-step explanation:

Answer:

D. x[tex]\geq[/tex]26

Step-by-step explanation:

Its x >_ 26

______________

Answer:

-6g + 7h

Step-by-step explanation:

Answer:

The mercury will not freeze because the freezer is warmer than the freezing point of mercury.

Step-by-step explanation:

A "freezing point" is a point that allows a liquid to solidify. This is lower than the melting point (of course). However, specific liquids freeze at varying freezing points.

For example, the freezing point of water is 0°C while the freezing point of Mercury is -39°C. This means that water will only freeze once it reaches a temperature of 0°C or lower than this. Same goes for Mercury–it needs to reach the temperature of -39°C or lower in order to freeze.

Answer:

Step-by-step explanation:

Given function:

a) Maximum height is the vertex. The ball reaches the maximum after:

b) Time the ball was in the air:

Solving we get approximately t = 13 seconds

c) Maximum height is at vertex, we found t above:

Answer:

2

Step-by-step explanation:

The slope of the line with equation y=2x+3 is 2 . So, any line parallel to y=2x+3 has the same slope 2 .

Hello!

Parallel lines have the same slope. So if one line has a slope of 2, the line parallel to it has a slope of 2 as well.

Therefore, the slope is 2. Hope it helps.

If you have any questions, feel free to ask.

~A forlorn teen

[tex]MagicalNature[/tex]

Answer: 624

Step by Step Explanation: Subtract 422 with 76, add 135, subtract 45, add 110, and lastly add 58.

Subtract 422 with 76, 422-76=366.

Add 366 with 135, answer will be 501.

Subtract 501 with 45 since she paid $45. 501-45=456.

Add 456 with 110 and that would be 566.

For the last step add 58 to find the answer and you would get 624.

Final Result: 624.

Answer:

The answer is 35

Step-by-step explanation:

Answer:

See the proof below

Step-by-step explanation:

Given the following coordinates

P(2, −1)

Midpoint of PQ M(3, 0)

We can get the coordinate point Q using the midpoint formula;

M(X,Y) = (x1+x2/2, y1+y2/2)

X = x1+x2/2

3 = 2+x2/2

6 = 2+x2

x2 = 6-2

x2 = 4

Y = y1+y2/2

0 = -1+y2/2

0 = -1 + y2

y2 = 0+1

y2 = 1

Hence the coordinate of Q is (4, 1)

Next is to get the coordinate of R

Given the midpoint of QR to be N(5, 3)

(5,3) = (4+x2/2, 1+y2/2)

5 = 4+x2/2

10 = 4+x2

x2 = 10-4

x2 = 6

1+y2/2 = 3

1+y2 = 6

y2 = 6-1

y2 = 5

Hence the coordinate of R is (6,5)

Given the coordinates M(3, 0) and N(5, 3)

Slope is expressed as:

m = y2-y1/x2-x1

m = 3-0/5-3

m = 3/2

Slope of MN = 3/2

Get the slope of PR

Given the coordinates P(2, −1) and R (6,5)

Slope of PR = 5-(-1)/6-2

Slope of PR = 5+1/4

Slope of PR = 6/4 = 3/2

Since the slope of MN is equal to that of PR, hence MN is parallel to PR i.e MN || PR

To show that MN = 1/2PR, we will have to take the distance between M and N and also P and R first as shown:

For MN with coordinates  M(3, 0) and N(5, 3)

MN = √(x2-x1)²+(y2-y1)²

MN = √(5-3)²+(3-0)²

MN = √2²+3²

MN = √13

Get the length of PR where P(2, −1) and R (6,5)

PR = √(6-2)²+(5+1)²

PR = √4²+6²

PR = √16+36

PR = √52

PR = √4*13

PR = √4*√13

PR = 2√13

Since MN = √13

PR = 2MN

Divide both sides by 2

PR/2 = 2MN/2

PR/2 = MN

Hence MN = 1/2 PR (Proved!)

Answer:

a) 12cm

b) 360cm²

c) 2160cm cubed

Step-by-step explanation:

a)

you would use Pythagoras theorem  for A

so half of 18 is 9

15² - 9² = 144

the square root of 144 is 12

the height is 12cm

b)

18 x 20 = 360cm²

c)

csa x L

csa = b x h divide by 2

18 x 12 = 216cm²/2 = 108cm²

108xm² x 20cm = 2160cm cubed

Answer: Decisions and Determinations -If a Medicare appeal request does not result in a dismissal, adjudication of ... dismissal by providing an explanation for the late filing to the MAC within 6 months of the dismissal of the.

Step-by-step explanation:g brain

Answer: the answer is D

Step-by-step explanation:I had that question on a quiz

The points after dilation is (27, 18).

Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original.

Enlargements are dilations that result in a larger image. Reduction is the name for a dilatation that shrinks the image. The initial figure is stretched or contracted by a dilatation.

Given:

Scale Factor= 3

Points (9, 6).

If the coordinates is dilated by factor 3.

Then, (9, 6).

= (9(3), 6(3)).

= (27, 18)

Hence, the points after dilation is (27, 18).

Learn more about dilation here:

https://brainly.com/question/13176891

#SPJ2

Answer:

D

Step-by-step explanation: edge 2021

Answer:

5.60 ganeyryjfj3ym5uhwrbeyny3nte y

Hey there!

We simply have to do 182/2.8, and you will get the area (65m^2).

We know that the formula for area is length x width, and the formula for volume is length x width x height. In the volume formula, we can see it can also be area x height to get volume. So, we know that area x height = volume, right? And in this equation, we are given volume and height. If          V = ha, with V = volume; h = height; a = area, we can divide "h" on both sides, and we get V/h = a, or volume divided by height is area. To solve for the above equation, we can plug the numbers in the formula: 182/2.8 = a, or 65 = a.

Hope this helps! Have an amazing day, and remember, you've got this!