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astra-53 [7]
3 years ago
6

What degree of rotational symmetry does an equilateral triangle have

Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer:    There are three rotational symmetries of an equilateral triangle: rotation by zero degrees (the identity operation), rotation by 120 degrees, and rotation by 240 degrees. This group of symmetry operations is isomorphic to the cyclic group of 3 elements: [math]C_3.[/math]

Step-by-step explanation:

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In the year 2003 a company made 8.8 million in profits. For each consecutive year after that their profits increased by 6%. How
yaroslaw [1]

Answer:

The company's profit in 2007 was 11.088 millions

Step-by-step explanation:

This is a compound interest problem where the initial amount is 8.8 million, the interest rate is 6% and the time period is 4 years and it gets compounded yearly. So we can use the compound interest formula, that is given by:

A = P*(1 + r/n)^(n*t)

Where A is the final amount, P is the initial amount, r is the rate, t is the total amount of time and n is the number of times it gets compounded in one year. We can now use all the values that were given to us to find out the profit of the company.

A = 8.8*(1 + (0.06))^(4) = 8.8*(1.06)^16

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So the company's profit in 2007 was 11.088 millions

6 0
3 years ago
Kallie is selling lemonade and ice pops to raise money for a trip to the local water park. A cup of lemonade costs $0.75, and
qaws [65]

Answer:

1.25x+0.75y>25

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Explanation:

Selling 20 cups of lemonade and 15 ice pops will raise enough money to go to the water park.

0.75x+1.25y≥25

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