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3 years ago

The value of y is inversely proportional to the value of x. When y = 42,2 = 6.

Mathematics

1 answer:

Amanda [17]3 years ago

8 0

Answer:

it is 63.3 , If I am not mistaken

Step-by-step explanation:

you set up a proportion so two fractions basically

42.2 on top of 6 , then y on top of 9

bc both 9 and 6 are x's so you can put them both as denominators or numerators . Anywhere but they have to be in the same position.

so after you do your fractions (proportions) you cross-multiply- divide or also called the butterfly method.

42.2×9= 379.8/ 6 = 63.3

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The Ferris wheel has a radius of 70 feet. The distance between the wheel and the ground is 4 feet. The rectangular coordinate sy

Leya [2.2K]

Answer:

The equation of the circular wheel is $x^2+(y-74)^2=(70)^2$ .

Step-by-step explanation:

Given :

Radius of Ferris wheel r = 70 feet.

The distance between the wheel and the ground = 4 feet.

Also, the rectangular coordinate system shown has its origin on the ground directly below the center of the wheel.

So the x coordinate of center of wheel must be 0 , and y coordinate = 70 + 4 = 74

Thus, Coordinates of center = (0,74)

The equation of circle is given by :-

$(x-h)^2+(y-k)^2=r^2$

Now center (h,k) = (0,74) and r = 70 , we get

$x^2+(y-74)^2=(70)^2$

Hence, the equation of the circular wheel is $x^2+(y-74)^2=(70)^2$ .

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3 years ago

4/5 is equivalent to 12 over what

san4es73 [151]

Step-by-step explanation:

4/5 is equivalent to 12/15

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Leno4ka [110]

The answer is C. 23 is a term

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I need help with the equation.

natulia [17]

Answer:

(x - 3)² + (y + 9)² = 25

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

Given area = 25π , that is

πr² = 25π ( divide both sides by π )

r² = 25 ( take the square root of both sides )

r = $\sqrt{25}$ = 5

With centre (h, k) = (3, - 9 ) and r = 5 , then

(x - 3)² + (y - (- 9) )² = 5² , that is

(x - 3)² + (y + 9)² = 25

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Austin has $5 more than Mark. If Mark has Δ dollars, write an expression for the amount of money Austin has.

elixir [45]

Mark+5=austin
hope this helps
- turtles12345

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