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Ray Of Light [21]
3 years ago
14

PLEASE HELP !!!

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

Answer: 60°, 72°, 90°, 120° and 180°

Step-by-step explanation:

To calculate the angle of rotational symmetry of a shape or polygon, you make use of this formula

\frac{360}{n}  where n is the number of sides of the shape

example for a Square with 4 sides. the angle of rotational symmetry is 360/4 =90°.

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Find an equation for the nth term in the following sequence:<br> 2, 8, 32, 128, 512...
seraphim [82]

Answer:

a_n = 2(4) ^{n-1}

Step-by-step explanation:

The sequence shown matches that of a geometric sequence of radius 4. To prove it, divide the term \frac{a_{n + 1}}{a_n} and check that \frac{a_{n + 1}}{a_n}=4

Then the formula that represents this sequence is:

a_n = a_1(r)^{n-1}

Where a_1 is the first term of the series = 2 and r is the radius of convergence = 4.

Then the equation is:

a_n = 2(4) ^{n-1}

8 0
3 years ago
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The critical points of a rational inequality are -1,3, and 4. Which set of points can be tested to find a complete solution to t
vredina [299]

Answer:

x = –3, x = 1, x = 3.5, and x = 5

Step-by-step explanation:

d on edg

3 0
3 years ago
Some online banks offer "online bill pay."What does this mean?
sleet_krkn [62]
It means that you can pay your utility bill for example using internet banking.

5 0
3 years ago
Jeremy is taking a photography class, but he doesn't own a camera. The class organizers will rent him a camera for $6 per day. J
Mazyrski [523]
Solving the given inequality for d, we get...

6d + 15 < 50
6d + 15-15 < 50-15 <<-- subtract 15 from both sides
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d < 5.83

Which means that d can be any of the values in this set: {0, 1, 2, 3, 4, 5}

The smallest d can be is 0. In this scenario, Jeremy pays the $15 registration but doesn't rent the camera at all
The largest d can be is 5. In this scenario, Jeremy rents the camera for 5 days
Any larger value of d is not allowed as it would make the total cost go over $50
Notice how I'm rounding down regardless how close 5.83 is to 6

8 0
3 years ago
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What is the solution to the inequality a - 1 &gt; 11
Vanyuwa [196]
It would be a > 12, move all terms to one side and then solve for x. make sure if you divide then you flip the term
8 0
3 years ago
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