surface area 20 points

Answer:

The equation of a line in point-slope form is.

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯∣∣aay−y1=m(x−x1)aa∣∣−−−−−−−−−−−−−−−−−−−−−−

where m represents the slope and (x1,y1) a point on the line.

To calculate the slope use the gradient formula

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯∣∣∣aam=y2−y1x2−x1aa∣∣∣−−−−−−−−−−−−−−−−−

where (x1,y1) and (x2,y2) are 2 coordinate points.

here the 2 points are (-3 ,4) and (0 ,3)

let (x1,y1)=(−3,4) and (x2,y2)=(0,3)

⇒m=3−40+3

Step-by-step explanation:

this is guid to answer that hope it help to you mahar

Answer:

the answer is C

Step-by-step explanation:

Answer:

-3 - 1 = 4/9(-5 - 4)

Step-by-step Explanation:

Point-Slope form uses the formula y-y1=m(x-x1).

m is the slope, which they gave you, so you can substitute it into the formula:

y - y1 = 4/9(x - x1).

They also gave you a first point (-5, -3) So you can substitute the x and y of those into the formula as well.

-3 - y1 = 4/9(-5 - x1)

y1 and x1 are for another point. By drawing a graph and then using the rise and run of the slope (up 4 and over 9), you can get another point (as shown in the picture).

Substitute the x and y values of that point into the equation as well and you have your answer:

-3 - 1 = 4/9(-5 - 4)

Answer:

I think for example

Step-by-step explanation:

its definitely not tomorrow, nor afterward. It may be in addition but to me for example makes more sense.

Answer: In addition

Step-by-step explanation:

Read the following sentences:

Bradley couldn't move around well. ________, his legs were sore from the full weekend of playing soccer.

Which of the following transition words best connects the two sentences?

Group of answer choices

In addition

Afterward

For example

Tomorrow

Given :

A Straight line passes through A(-2,1) and B(2,-k).

The  line is perpendicular to a line 3y+2x=5 .

To Find :

The value of k.

Solution :

Let, slope of line is m.

We know, product of slope of in straight line is -1.

[tex]m \times \dfrac{-2}{3} = -1\\\\m = \dfrac{3}{2}[/tex]

We know, slope is given by :

[tex]\dfrac{y_2-y_1}{x_2-x_1} = \dfrac{3}{2}\\\\\dfrac{1-(-k)}{-2 - 2} = \dfrac{3}{2}\\\\\dfrac{1+k}{-4} = \dfrac{3}{2}\\\\k = -7[/tex]

Therefore, the value of k is -7.

Answer:

[tex]{\huge{\boxed{\sf{\purple{false}}}}} \\ \\ {\small{\boxed{\sf{\pink{hope \: it \: helps...}}}}}[/tex]

False If the diameter of a cylinder is 8 feet, then its radius is not 16 feet it is 4 feet.

The surface traced by a straight line moving parallel to a fixed straight line and intersecting a fixed planar closed curve.

A straight line that runs from one side of a figure and passes through the center.

Diameter is always two times the radius.

If diameter is 8 feet then radius is 4 feet.

Thus the statement is false

To know more about diameter click here

https://brainly.com/question/8182573

#SPJ2

Answer:

the answer is 47

Step-by-step explanation:

the bottom box is 15 because 3x5=15 the side is seven and u subtract 3 bc it was already used so u have 4x8=32. 32+15= 47

Answer:

Here we want to graph the equations:

f(x) = y =(8/3)*x

and

g(x) = y = -(8/3)*x

To graph these you need to find some coordinate points of each one, and then connect them, such that the graph of these two equations can be seen below.

Where the blue one is f(x) and the green one is g(x)

We now want to look at the graph and find the point of intersection p.

By looking at the graph below, we can see that the intersection is at the origin, then p = (0,0)

Also remember that an intersection of two functions means that:

f(x) = g(x)

for that particular x value, then we can solve this for our functions and get:

(8/3)*x = -(8/3)*x

That equation is only true when x = 0

Then we have the intersection at x = 0, and the correspondent y value is given by f(0) or g(0) (will be the same value)

y = f(0) = (8/3)*0 = 0 = -(8/3)*0 = g(0)

Then we also found analytically that the intersection is in the point (0, 0)

Answer:

slope=4

Step-by-step explanation:

[tex]m=\frac{change(y)}{change(x)}[/tex]

[tex]m=\frac{-8-(-4)}{-5-(-4)}[/tex]

[tex]m=\frac{-4}{-1}[/tex]

[tex]m=4[/tex]

Answer:

5

Step-by-step explanation:

f(n)=3n^2-7

f(-2)=3(-2)^2-7

f(-2)=3(-2)(-2)-7

f(-2)=3(4)-7

f(-2)=12-7

f(-2)=5

Answer:

Step-by-step explanation:

It's 10 since it's a whole number.

Answer:

2.85125 is the answer.

Step-by-step explanation:

according to the calculator

Answer:

2.75124851367

Step-by-step explanation:

8/8.41=951248513674+1.8=2.75124851367 so its 2.75124851367

Answer:

A its 10

Step-by-step explanation:

Answer:

22.6%

Step-by-step explanation:

1. 14% do not have a pet now and have never had a pet & 62% do not have a pet now.

2. 0.14/0.62

3. Divide = .2258

4. Multiply by 100 = 22.58

5. Round = 22.6%

I hope this helps! Have a wonderful day!

Answer:

3(10 × 14) cause its basically telling you to multiply

Answer:

42 minutes.

Step-by-step explanation:

We know that:

y = 0.2*x

is the equation that that defines the distance, in miles, that the boat travels in x minutes.

We know that the dolphins are at 8.4 miles from the boat.

Then when we have y = 8.4, this will mean that the boat reached the dolphins.

Then we need to solve the equation:

y = 8.4 = 0.2*x

for x

To do that, we just need to isolate x in one side of the equation, so we can just divide both sides by 0.2 to get:

8.4/0.2 = (0.2*x)/0.2

42 = x

And x is time in minutes, thus, the boat needs to travel for 42 minutes to reach the dolphins.

Answer:

It depends what your asking, if you do the problem your full answer is 409 because your muplitying tand then finding the sum before Equally the answer so that's what could find. I really hope this helps you out.

Answer:

It depends what your asking, if you do the problem your full answer is 409 because your muplitying tand then finding the sum before Equally the answer so that's what could find. I really hope this helps you out.

Hope this helps  :)

Answer:x=57

Step-by-step explanation:

isolate x by subtracting 17 from both sides, you should get x = 74-17, which is 57.

Answer:

B

Step-by-step explanation:

Answer:

[tex]B' = (-2,-3)[/tex]

Step-by-step explanation:

Given

[tex]A = (1,-4)[/tex]

[tex]B = (4,-6)[/tex]

[tex]C = (2,-1)[/tex]

reflection across y

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

Required

New coordinate of B

When reflected across the y-axis.

The rule is:

[tex](x,y) \to (-x,y)[/tex]

So:

[tex](4,-6) \to (-4,-6)[/tex]

Next is a dilation by 1/2

To do this, we multiply the new point by 1/2

So:

[tex]B' = (-4,-6) * \frac{1}{2}[/tex]

[tex]B' = (-4* \frac{1}{2},-6* \frac{1}{2})[/tex]

[tex]B' = (-2,-3)[/tex]

Answer:

29 3/4 cups

Step-by-step explanation:

total amount of tanner in the 3 containers = sum of tanners in each container

total cups in containers b and c = 2/3 x 12 3/4

2/3 x 51/4 = 17/2 cups or 8 1/2 cups

total capacity = 8 1/2 + 8 1/2 + 12 3/4 = 17 + 12 3/4 = 29 3/4

Answer: [tex](-3,18),\ (3,6)[/tex]

Step-by-step explanation:

Given

Functions are [tex]x^2-2x+3\ \text{and}\ -2x+12[/tex]

Equate them to solve

[tex]x^2-2x+3=-2x+12\\\Rightarrow x^2=9\\\Rightarrow x=\pm 3\\\therefore y=6,18\\\text{Ordered pairs are}\\(-3,18),\quad (3,6)[/tex]

Answer:

b

Step-by-step explanation:

expense is usually done everywhere.

Answer:

A

Step-by-step explanation:

Cash

Answer:

44.64

Step-by-step explanation:

you do the 10 - 2 in parenthesis then you multiply 5.58 by 8 which is what the 10 - 2 would be and boom you have your answer

Answer: 1.4

Step-by-step explanation:

36 minutes

Going through the question in bits:

i. Two people together can do a certain job in 20 minutes.

This implies that the time taken to finish the job is 20 minutes.

This also means that in 1 minute, they will do [tex]\frac{1}{20}[/tex] of the job i.e the rate at which the job is done by the two of them is [tex]\frac{1}{20}[/tex]

ii. If one of them can do the job in 45 minutes.

This implies that the time taken by one of them to finish the job is 45 minutes.

This also means that in 1 minute, he will do [tex]\frac{1}{45}[/tex]  of the job. i.e the rate at which the job is done by one of them is [tex]\frac{1}{45}[/tex]

iii. let the other person do the job in x minutes.

This implies that the time take by the other person to finish the job is x minutes.

This also means that in 1 minute, he will do [tex]\frac{1}{x}[/tex] of the job. i.e the rate at which the job is done by the other person is [tex]\frac{1}{x}[/tex]

Now,

The rate by which the job will be done by the two of them combined is the sum of the individual rates.

i.e

[tex]\frac{1}{20}[/tex] = [tex]\frac{1}{45}[/tex] + [tex]\frac{1}{x}[/tex]

Multiply through by 90x and solve

(90x * [tex]\frac{1}{20}[/tex]) = (90x *  [tex]\frac{1}{45}[/tex]) + (90x *  [tex]\frac{1}{x}[/tex])

4.5x  = 2x + 90

4.5x - 2x = 90

2.5x = 90

x = [tex]\frac{90}{2.5}[/tex]

x = 36

Therefore it will take the other person 36 minutes to finish the job.

Answer:

5 days.

Step-by-step explanation:

Jasmine has two options:

Rent skis at the resort for $30 per day.

Then if she rents the skis for N days, the cost will be:

C(N) = N*$30

Buy skis for $150

Now we can ignore the lift pass because she will pay that in both cases.

Now we want to find the number of days N such that the cost of renting is the same as the cost of buying.

Then we need to solve:

C(N) = $150

N*$30 = $150

N = $150/$30 = 5

So if you rent the skis for 5 days, you will pay the same as if you bought the skis.