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4 years ago

What is the probability of spinning once and having it land on either 2 or 8?

Mathematics

2 answers:

zaharov [31]4 years ago

8 0

Probability of spinning once will land on 2

algol [13]4 years ago

8 0

The probability would be 1/5 if it's reduced to the simplest form

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A metal wire is shaped in the form of a rectangle. The length of the rectangle is 7 cm and the breadth of the rectangle is 4 cm.

Goryan [66]

Answer: 38.5 cm^2

Step-by-step explanation:

Length of wire = 7*2 + 4*2 = 22 cm

Radius of Circle = 22/(2pi) = 3.5 cm

Area of Circle = (3.5)^2*pi = 38.5 cm^2

8 0

3 years ago

What does it mean when there is a negative exponent in scientific notation?

miss Akunina [59]

A negative exponent shows that the decimal point is shifted that number of places to the left. In scientific notation, the digit term indicates the number of significant figures in the number

6 0

3 years ago

Read 2 more answers

Witch is greater 0.88 or 0.178

Tems11 [23]

0.88

0.178 is 0.18 or 18% and 0.88 is 88%

just multiply your decimal by 100 to get a percent which is easier to see which is bigger.

7 0

3 years ago

The function h(t) = -4.9t2 + h0 gives the height (h), in meters, of an object t seconds after it falls from an initial height (h

sveticcg [70]

It will hit the ground after 3.499 seconds.

To solve this you first have to find the value of h(0) in this equation. That is the height from which it was dropped.

You can input any of the points into the equation and solve for the missing part. You will get 60 for the height.

The use the quadratic formula to see that it reaches the ground after 3.499 seconds.

7 0

3 years ago

Read 2 more answers

An electronics store sells about 40 MP3 players per month for $90 each. For each $5 decrease in price, the store expects to sell

erma4kov [3.2K]

Step-by-step explanation:

Let's establish our equation first:

for every $5 decrease, there's an additional of 4 MP3 players sold.
to get the monthly revenue, we need to multiple the cost of each player to the number of units sold

$\frac{40mp3}{month} \times \frac{90dollars}{mp3} = 3600 \frac{dollars}{month}$

The equation above is for the basis month.

But the next month, we decreased the cost of mp3 player to sold 4 more units.

$\frac{(40 + 4)mp3}{month} \times \frac{(90 - 5)dollars}{mp3} = 3740 \frac{dollars}{month}$

And the next month, we decreased the cost again to gain 4 more additional units sold.

$\frac{(40 + 4x)mp3}{month} \times \frac{(90 - 5x)dollars}{mp3} = revenue per \: month$

If we substitute x with 2, we get 3840.

If we substitute x with 3, we get 3900.

If we substitute x with 4, we get 3920.

If we substitute x with 5, we get 3900.

At fifth time we decreased our price, we also got lesser revenue.

Therefore, our highest revenue would be $3,900.00 per month at our 4th price decrease with a price of $70.00.

7 0

3 years ago