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True [87]
3 years ago
6

in 3000 repetitions of an experiment, a random event occurred in 500 acres. The expected probability of this event is?

Mathematics
1 answer:
scZoUnD [109]3 years ago
6 0
Roughly in the 20% percentile.<span />
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8.54 as a place value
alexandr402 [8]
Eight and fifty four hundredths

8      .        5             4
Ones        Tenths    Hundredths
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3 years ago
What would the area of an actual pool be in the scale from the drawing is 3:1000
elena55 [62]

Answer:

If this is the complete question them the answer is 1250 m²

Step-by-step explanation:

the pool in the drawing is 15x7.5 and the scale is 3/1000 so if the size in the drawing  is 3 then the actual is 1000.

x=15*1000/3=5000cm which would be 50m

x=7.5*1000/3=2500cm which is 25m

the actual area of the pool is 50*25=1250 m²

8 0
3 years ago
You work in the state of Nebraska where the sales tax is five and a half percent what would be the tax rate expressed as a decim
dedylja [7]
Just answered this lol
3 0
3 years ago
How do u solve this ?
svetoff [14.1K]
Okay, I will give you the building blocks for solving this equation.

Now something you will need to remember is that a triangle will always add up to 180 degrees.

We can use y as that one unknown side in the triangle.

Knowing this, we can say (9x+16) + (6x+15) + y = 180

Then we can combine like terms like so : 15x+31+y = 180

There are two variables though.  So we need more information.

Well, turns out we have the exterior angle of a straight line and the angle measures of a straight line must equal 180.  We can now use (19x+3) + y = 180.

With both of these equations, you can now solve and find both of the angles
6 0
3 years ago
What are the lateral area and the surface of the cone shown below?
Ierofanga [76]
\bf \textit{lateral surface area of a cone}\\\\&#10;LA=\pi r\stackrel{slant~height}{\sqrt{r^2+h^2}}~~&#10;\begin{cases}&#10;r=radius\\&#10;h=height\\&#10;-------\\&#10;r=11\\&#10;\stackrel{slant~height}{\sqrt{r^2+h^2}}=24&#10;\end{cases}\implies LA=\pi (11)(24)&#10;\\\\\\&#10;\boxed{LA=264\pi }\\\\&#10;-------------------------------

\bf \textit{total surface area of a cone}\\\\&#10;SA=\pi r\stackrel{slant~height}{\sqrt{r^2+h^2}}+\pi r^2~~&#10;\begin{cases}&#10;r=radius\\&#10;h=height\\&#10;-------\\&#10;r=11\\&#10;\stackrel{slant~height}{\sqrt{r^2+h^2}}=24&#10;\end{cases}&#10;\\\\\\&#10;SA=\pi (11)(24)+\pi (11)^2\implies SA=264\pi +121\pi &#10;\\\\\\&#10;\boxed{SA=385\pi }
3 0
3 years ago
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