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Vilka [71]
4 years ago
10

Does anyone know how to do 7a?

Mathematics
1 answer:
Olegator [25]4 years ago
8 0
Calculate the circumference of the two semi circles, which equals a full circle. Then add the two sides of the track.
 Circumference is pi x diameter = 3.14 x 22.8 = 71.592, so, you would need to add 71.592 + 49.2 + 49.2  = 169.992 meters, and that would be the length of one lap of the track.
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In playing Monopoly, rolling doubles three times in a row sends you to jail. What is the probability of rolling three consecutiv
Alex777 [14]
To find the probability you must multiply the probability of rolling doubles by itself 3 times.

to roll a double  of any number you have to have the same number on a six-sided die that can be represented as 1/6 times 1/6 = 1/36 chance per roll

\frac{1}{36} * \frac{1}{36} * \frac{1}{36} = \frac{1}{46656}

there is a 1 in 46656 chance in rolling doubles 3 times in a row.
8 0
4 years ago
Read 2 more answers
Express the area of the rectangle shown below as a trinomial
zzz [600]
As we know that the area of a rectangle is -

length × Breadth

So, here length = (3n+1)

Breadth = (2n-5)

Area of rectangle
= (3n+1)(2n-5)

= 3n(2n-5)+1(2n-5)

= 6n² - 15n + 2n - 5

= 6n² - 13n - 5

Answer) Area of rectangle is 6n² - 13n - 5
7 0
3 years ago
NEED HELP!!!!! You sell 400 shares of AVG Technologies (AVG). You purchased the stock at $12.77 per share and sold it at $13.33
Mandarinka [93]

Answer:

$224

Step-by-step explanation:

You purchased the stock at $12.77 per share, so the total amount you purchase for is:

400 shares * $12.77 = $5108

You spent $5108 on the stock shares.

You sold the stock at $13.33 per share, so the total amount you sold for is

400 shares * $13.33 = $5332

You got $5332 by selling the stock shares.

Profit = $5332 - $5108 = $224

4 0
3 years ago
Read 2 more answers
In a race, 41 out of the 50 bicyclists finished in less than 38 minutes. What percent of bicyclists finished the race in less th
storchak [24]
For left put 2 on each
On the box over 100 put 82, and put 82 in the box on the right
5 0
3 years ago
Read 2 more answers
Which equation has the solution x=7?<br> a-5x+3=45<br> B-3x−8=28<br> c-5x−1=−34<br> D-2x−5=9
Roman55 [17]

Answer:

D

Step-by-step explanation:

2x-5=9

add 5 to both sides

2x=14

divide by 2 on both sides

x=7

6 0
2 years ago
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