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vova2212 [387]
3 years ago
14

PLEASE HELP ASAP!!!!!!!

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

45° rotation and another 135° rotation about the same point is equivalent to 45+135 = 180° rotation about that point

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Within the set of whole numbers , one set of numbers satisfies the recursive formula an=(an-1)^2-an-1, when a4=870 what are the
andrew11 [14]

Answer: 3 and 6 will be the first and second term of the given series respectively.

Explanation:  since it is given-  a_n=(a_{n-1} )^2-a_{n-1} and a_4=870

so, by replacing n by 4, we will get- a_4=a_3^2-a_3⇒870= a_3^2-a_3⇒ a_3^2-a_3-870=0

after solving this equation we will get, a_3= -29 and 30.

If a_3= -29, but it is not a whole number.

Thus,a_3=30 will be the value of third term of the given series.

Again, by applying the given condition a_n=(a_{n-1} )^2-a_{n-1}, a_2= 6 or -5 (not possible), so, a_2=6 will be the second term.

Similarly, a_1=3 or -2 but  we will go to the whole number.

Thus, a_1=3 will be the first term.

8 0
3 years ago
Read 2 more answers
What numbers multiply to equal -9 but add up to 12?
Elan Coil [88]
I don't think this is possible.

The factors of -9 are:
-1 x 9
-9 x 1
-3 x 3

And when you add them together you get:
-1 + 9 = 8
-9 + 1 = -8
-3 + 3 = 0

Sorry but there is not an answer. :(

7 0
3 years ago
The seventh grade class is raising money to have a class trip at the end of the year. They began the year with $1500. They now h
Nikitich [7]

Answer:

The percent of the increase for the money the class raised is 10 %

Step-by-step explanation:

Because if you divide 1500 by 10 you get 150 that means 150 is 10 % of 1500 and if you add 150 to 1500 you get 1650 so the increase of money the class raised is 10 %

I hope this helped :)

5 0
3 years ago
I need help on this question
vaieri [72.5K]

I'm guessing it is 10? or 7?

5 0
3 years ago
What is the mean number of days in past week that the 25 respondents exercised?
Natali [406]
I believe that the mean is 6
6 0
2 years ago
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