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Snowcat [4.5K]
3 years ago
14

Please help answer these questions? Be specific on which u are answering thanks!

Mathematics
1 answer:
aivan3 [116]3 years ago
4 0
For 15 you can say... he is incorrect because I know when you add two integers that it's always smaller than the factors
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There are 30 chickens at a farm that are white. This number represents 12% of the total number of chickens at a farm. How many t
ratelena [41]

Answer:

3.6

Step-by-step explanation:

30 of 12% =3.6

hope this helped

3 0
3 years ago
What is the second step to prove that Sn=>2+2^2+2^3+...+2^n=2(2^n-1)?
meriva

Answer:

Assume that Sn is valid for n = k and prove that Sn is valid for n = k + 1.

Step-by-step explanation:

This is the second step in the principal of mathematical induction. The three steps in the principals of mathematical induction are:

1. show that something works for the first case (base or anchor step)

2. assume that it works for any particular step (inductive hypothesis), and then

3. show that it works for the next case (inductive step)

p. 621 in textbook

It's weird that they put steps 2 & 3 together, but it was correct on the test so ¯\_(ツ)_/¯

4 0
4 years ago
Is 23 and 25 co-primes
iren [92.7K]

Answer:

Yes

Step-by-step explanation:

Co primes are numbers whose only common factor is 1

Factors of 23 are : 1, 23

Factors of 25 are : 1, 5, 25

The only common factor is 1

Thus 23 and 25 are co prime

4 0
3 years ago
Read 2 more answers
One thousand dollars is invested in a savings account that pays 9% interest per year. The interest earned after the first year i
Ray Of Light [21]
In order to solve this problem, the first thing we are going to do is find out how much is 9% of 1000, since 9% is the interest per year. So 0.09 x 1000 and that would be 90. And since the interest earned is added to the account, the account will now have a total of $1090 which is now the new principal. Based on this new principal, we need to know the 9% of it again to know how much interest in earned in the following year. So that would be 0.09 x 1090 and the result is $98.10. Hope this answer helps.
4 0
3 years ago
Which of the following is equal
Bezzdna [24]

Answer:

C

Step-by-step explanation:

4 0
3 years ago
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