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Serga [27]
2 years ago
12

What is 2 * 3 ^ 2 - 1​

Mathematics
2 answers:
OverLord2011 [107]2 years ago
7 0

Answer:

6 or 17

Step-by-step explanation:

2*3^2-1

2*3^1

2*3=6

___________

2*3^2 = 18

18 - 1 = 17

juin [17]2 years ago
5 0
The answer is 35.
Reasons : 2*3 = 6. 6•6= 36-1= 35.
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I need help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Lena [83]

Answer:

Go to the store or get some from friends?

Step-by-step explanation:

I honestly don't know what kind of question this is but maybe it helps?

3 0
3 years ago
What are the restrictions for a? 2a^2+a-15/5a^2+16a+3
koban [17]

ANSWER


The restrictions are

a\ne -3,a\ne -\frac{1}{5}


EXPLANATION


We were given the rational function,


\frac{2a^2+a-15}{5a^2+16a+3}


The function is defined for all values of a, except



5a^2+16a+3=0


This has become a quadratic trinomial, so we need to split the middle term.


We do that by multiplying the coefficient of x^2 which is 5 by the constant term which is 3. This gives us 15.


The factors of 15 that adds up to 16 are 1 and 15.


We use these factors to split the middle term.




5a^2+15a+a+3=0


We now factor to get,


5a(a+3)+1(a+3)=0


We factor further to get,


(a+3)(5a+1)=0



This implies that,


(a+3)=0,(5a+1)=0


This gives


a=-3,a=-\frac{1}{5}


These are the restrictions.





8 0
3 years ago
Trina borrowed $460 from a friend. Her friend charged her 5% simple annual interest.
fenix001 [56]
Trina borrowed $460 from a friend. Her friend charged her 5% simple annual interest.Let's solve how much will Trina owe her friend in total after 3 years? Use the simple interest formula to solve.
I = prt
I = (460)(0.05)(3)
I = 460 * 0.05 = 23
I = 23 * 3 years = 69 dollars is the interest.
Trina must pay her friend a total of $460 + 69 = 529.
7 0
3 years ago
Read 2 more answers
Chin made an error in his chart showing the multiplication of the binomial by the trinomial. Which change can be made to correct
stealth61 [152]

Answer:

The expression 6x should be 6x^2.

Step-by-step explanation:

Given is the chart of multiplication of the binomial by the trinomial.

Let's check each element in the chart:-

3x times x^2 = 3x^3

3x times 2x = 6x^2

3x times 4 = 12x

2 times x^2 = 2x^2

2 times 2x = 4x

2 times 4 = 8

From the given chart, we can identify that <u>6x should be 6x^2.</u>

Hence. option B is correct, i.e. The expression 6x should be 6x^2.

7 0
3 years ago
Read 2 more answers
252.8 x 63.4 please I need help
Lady bird [3.3K]

Answer:

16027.52

Step-by-step explanation:

4 0
3 years ago
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