How far can jovan run in a full hour

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

4 0

2/3(4/3)= 8/9

Jovan ran 8/9 of a mile in a full hour.

Hope this helps!

You might be interested in

What is the Least Common Multiple of x and 3x?

beks73 [17]

Answer:

Step-by-step explanation:

If you divide both numbers by x then it's just 1 and 3. LCM of 1 and 3 is 3

6 0

3 years ago

Read 2 more answers

How to make a graph of an exponential function that shows exponential decay and has a y intercept of 2

Sliva [168]

Answer:

$f(x)=2e^{-kx}$

in a graph the x value at the y intercept is 0

$f(x)=Ae^{-kx}$ is a typical decay function

if x = 0 thus $e^{-kx}$ = 1

so at 0 the function value would be A

$f(x)=2e^{-kx}$

Step-by-step explanation:

6 0

3 years ago

A parabola can be drawn given a focus of

Volgvan

Answer:

$y=-\frac{1}{4}(x-2)^{2}+9$

Step-by-step explanation:

Any point on a given parabola is equidistant from focus and directrix.

Given:

Focus of the parabola is at $(2,8)$ .

Directrix of the parabola is $y=10$ .

Let $(x,y)$ be any point on the parabola. Then, from the definition of a parabola,

Distance of $(x,y)$ from focus = Distance of $(x,y)$ from directrix.

Therefore,

$\sqrt{(x-2)^{2}+(y-8)^{2}}=|y-10|$

Squaring both sides, we get

$(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9$