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CaHeK987 [17]
3 years ago
13

Give two examples that show using parentheses can change

Mathematics
1 answer:
Grace [21]3 years ago
8 0
X=2
-x^2=-2^2=4
-(x)^2=-(2)^2=-4

3(X+5)=3X+15
3 x X+5=3X=5
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Someone please help.​
brilliants [131]

Answer: 3,19 which is larger than the original

Step-by-step explanation: if you consider that the original average is 3 you can say that all 25 students have 3 siblings so the average is 3, if you add another students with 8 siblings and do some math (25*3+8)/26 its 3,19

8 0
2 years ago
What are the explicit equation and domain for an arithmetic
max2010maxim [7]

Given:

First term of an arithmetic sequence = 5

Second term = 3

To find:

The explicit formula for the given arithmetic sequence.

Solution:

We have,

First term: a_1=5

Second term: a_2=3

Common difference is

d=a_2-a_1

d=3-5

d=-2

Now, the explicit formula for an arithmetic sequence is

a_n=a+(n-1)d

where, a is first term and d is common difference.

Putting a=5 and d=-2, we get

a_n=5+(n-1)(-2)

It can also be written as

a_n=5-2n+2

a_n=7-2n

Here, n is an integer greater than or equal to 1.

Domain is the set of input values.

Therefore, the explicit equation is a_n=5+(n-1)(-2) or a_n=7-2n and domain is all interest greater than or equal to 1.

8 0
2 years ago
Write 6 2/3 as a improper fraction
kirill115 [55]
Hi, i think the answer 20/3 hope this helped :D
3 0
3 years ago
Read 2 more answers
Three parcels weigh 2 pounds. Two parcels weigh the same. The lightest weight is 5/8 pound lighter than the heaviest weight. How
tankabanditka [31]
Its D if you want to give it a shoot but im 75% sure is D hope you got it right. :)
4 0
3 years ago
In what base is the sum of 8 and 5 equal to 14?
LuckyWell [14K]
Nothing. It would have to be 5 and 8 to be 13... Not 14 and it would be math. :)
4 0
3 years ago
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