If a ferris wheel diameter is 250 ft. Find it's cirumference. Give an exact answer and an approximation using 3.14 for pi how do I come up with this answer I keep trying but cant figure it out

Answers

Answer 1

Answer:
The circumference of ANY circle is (pi) times (diameter). Doesn't matter
if it's one tiny link in the silver chain of a necklace or the circular orbit of
a planet.

   Circumference = (pi) times (diameter) .

Please memorize that. In high school, you should already have it memorized.

The diameter of the ferris wheel is 250-ft.

   Exact answer: Circumference = 250 pi feet

You can't write the exact answer completely in numbers,
because you can't write 'pi' completely in numbers.

   Approximation using pi = 3.14 :

   Circumference = (250) x (3.14) = 785 feet

Answer 2

Answer: Circumference = πd
C= 250(3.14)
C=785

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Passes through (3,1) ,perpendicular to y=-3x+2

Answers

The equation of line which passes through (3, 1) and perpendicular to y = -3x + 2 is;

⇒ x = 3y

Here,

Given that;

The point is (3, 1).

We have to find the equation which passes through (3, 1) and perpendicular to y = -3x + 2.

What is equation of line passes through a point?

Equation of line passes through a point (a, b) with slope m is;

⇒ (y - a) = m (x - b)

Now,

As it is perpendicular to y = -3x + 2 and the slope of this is m₁ = -3,

Hence, the slope of to find line is m₂ = -1 / -3 = 1/3

We have the general equation of a line;

( y - y₁ ) = m₂ (x - x₁)

Where, ( x₁ , y₁ ) = (3, 1) and m₂ = 1/3

So, after putting all values we get;

( y - 1 ) = 1/3 ( x - 3)

3 (y - 1) = (x - 3)

3y - 3 = x - 3

3y = x

x = 3y

Hence, The equation of line which passes through (3, 1) and perpendicular to y = -3x + 2 is;

⇒ x = 3y

Learn more about the equation of line visit:

brainly.com/question/19417700

#SPJ2

As it is perpendicular to y = -3x + 2 and the gradient of that is -3 we know that the gradient of our line must be -1 / -3 = 1/3.

Now we have the general equation of a line m = (y-y1)/(x-x1) to which we can substitute our values.

1/3 = (y - 1)/(x - 3)
x - 3 = 3 * (y - 1)
x - 3 = 3y - 3
x = 3y

Could you please solve me this exercice: :3 $x^2-5x+√(x^2-5x+7)=5$

Thank you a lot! :3 :3 :3

Answers

$Domain:x^2-5x+7\geq0\n\na=1;\ b=-5;\ c=7\n\n\Delta=b^2-4ac\to\Delta=(-5)^2-4\cdot1\cdot7=25-28=-3 < 0\n\ntherefore\ D:x\in\mathbb{R}$

$Find\ minimum\ value\ of\ x^2-5x+7\n\ny_(min)=(-\Delta)/(4a)\to y_(min)=(-(-3))/(4\cdot1)=\boxed{(3)/(4)}\n-----------------------------\nx^2-5x+√(x^2-5x+7)=5\ \ \ \ \ |add\ 7\ to\ both\ sides\n\nx^2-5x+7+√(x^2-5x+7)=12\n\nsubtitute\ t=x^2-5x+7\ (t\geq(3)/(4))\n\nt+√(t)=12\ \ \ \ |subtract\ t\ from\ both\ sides\n\n√(t)=12-t\ \ \ \ \ \ |square\ both\ sides$

$t=(12-t)^2\n\nt=12^2-2\cdot12\cdot t+t^2\n\nt=144-24t+t^2\n\nt^2-24t+144=t\ \ \ \ \ |subtract\ t\ from\ both\ sides\n\nt^2-25t+144=0\n\nt^2-9t-16t+144=0\n\nt(t-9)-16(t-9)=0\n\n(t-9)(t-16)=0\iff t-9=0\ or\ t-16=0\n\nt=9\ or\ t=16$

$t+√(t)=12\ therefore\ t=16\ is\ not\ a\ solution.$

$t=9\to x^2-5x+7=9\ \ \ \ |subtract\ 9\ from\ both\ sides\n\nx^2-5x-2=0\n\na=1;\ b=-5;\ c=-2\n\n\Delta=(-5)^2-4\cdot1\cdot(-2)=25+8=33\n\nx=(-b\pm\sqrt\Delta)/(2a)\to x=(5\pm√(33))/(2)$

$Answer:\n\boxed{x=(5-√(33))/(2)\ or\ x=(5+√(33))/(2)}$

if xy=0 then x or/and y must be 0 so we try to get it to zero later

so first we get the square root on one side by itself
so subtract x^2-5 from both sides (-x^2+5 to both sides)

√(x^2-5x+7)=-x^2+5x+5
square both sides (or both sides to the ^2 power)
gets rid of the √
x^2-5x+7=(-x^2+5x+5)^2=x^4-10x^3+15x^2+50x+25
so subtract x^2 from both sides
-5x+7=x^4-10x^3+14x^2+50x+25
add 5x to both sides
7=x^4-10x^3+14x^2+55x+25
subtract 7 from both sides
0=x^4-10x^3+14x^2+55x+18
factor
(x^2-5x-9)(x^2-5x-2)=0
(x^2-5x-9)=0
(x^2-5x-2)=0
I'm not sure how to proceed but if you can find the factors of (x^2-5x-2) and (x^2-5x-9) and set them to zero, you can get the answers

I need help ASAP. All the help I can get it appreciated

Answers

Answer:

QRU and VUR

Step-by-step explanation:

Alternative interior angles are angles that have the same degrees, but different locations. In this case, you can see QRU has the same degree of angle as VUR; They are only in different locations.

- Hope that helps! Please let me know if you need further explanation.

Answer:

QRU and VUR

Step-by-step explanation:

Hope this helps!

Whats the mean, media, maximum,minimum,mode and range of 1,2,1,3,4

Answers

First put the numbers in order least to greatest.
(1,1,2,3,4)
The mean is the average of the group of numbers.
Too find it you add all the numbers up and divide it by how many numbers there are.
In this case it would be 11 divided by 5 so the mean would be $2 (1)/(5)$

Median is just another word for middle. After putting the numbers in order, the number in the center of the group is the median, in this case it would be 2.

The maximum would just be the largest number which is self explantory (4)

The minimum would be the lowest number (1)

I was taught to see mode as the word "most". All you do is see which number occurs the most. If all the numbers only occur once, your answer would be "No mode"

It is that simple! The Range is the difference between the lowest and highest number. So all you have to do is subtract the maximum by the minimum. In this case it would be 4-1 = 3

7 1/5 subtracted by 6 2/5 equals

Answers

Well, since the denominator is the same so you don't have to change to find an equal factor of the two, so that is good. So, 7 1/5-6 2/6 which equals 4/5. I hope I helped.

Point E is located at (−2,4) and point F is located at (5,10) . What are the coordinates of the point that partitions the directed line segment EF⎯⎯⎯⎯⎯ in a 7:3 ratio? Enter your answer, as decimals, in the boxes.