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Nimfa-mama [501]
3 years ago
10

What is the domain of y = √x^2-1?

Mathematics
2 answers:
andriy [413]3 years ago
7 0
X can be -1 or 1 for the square root to be 0 

The correct option is a
Reptile [31]3 years ago
5 0
y=\sqrt{x^2-1}\\\\The\ domain:\\\\x^2-1\geq0\ \ \ |+1\\\\x^2\geq1\iff x\geq1\ \vee\ x\leq-1\to|x|\geq1\\\\Answer:\ a.\ |x|\geq1
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Andrea has 18 yards of fabric. How many 4-inch pieces can she cut from her original piece?
Mrac [35]

Answer:

162 pieces

Step-by-step explanation:

Andrea has 18 yards

How many 4 inch pieces can she get?

Convert

1 yard = 3 feet

18 yards = 54 feet

1 foot = 12 inches

54 feet = 648 inches

Divide

648 inches ÷ 4 inches =  162 pieces

Hope this helps :)

6 0
3 years ago
Read 2 more answers
Find three consecutive integers whose sum is 51
Elina [12.6K]
X+x+1+x+2=51

3x+3=51
Use inverse operations to solve

subtract 3 from both sides

3x=48 

Divide by 3 on both sides

x=16

16, 17, 18
4 0
3 years ago
1. Find 3 rational numbers between −1//3 and 1/−5
Alborosie

Step-by-step explanation:

-1×5 1×3

------ -----

3×5 -5×3

=

-5/15 -3/15

-5/15×4/4 ;

-3/15×4/4

=

-20/60 ;

-12/60

you can write any 8 rational no. between them

please mark as brainliest answer as it will also give you 3 pts

8 0
3 years ago
You are choosing between two health clubs. Club A offers membership for a fee of $12 plus a monthly fee of $28. Club B offers me
EleoNora [17]

A has fixed one time fee of $12 and if you go to it say "m" months you pay $28 for each month, so your total cost at A is really 12 + 28m.

B has a fixed one time fee of $20 and if you go to it "m" months you pay $26 for each month, so you total cost at B is 20 + 26m.

how many months for the cost to be the same?

\stackrel{A}{12+28m}=\stackrel{B}{20+26m}\implies 12+2m=20\implies 2m=8\implies m=\cfrac{8}{2}\implies m=4

well, since the cost for both is the same, we can just get A's, knowing that B is the same

12+28(4)\implies 12+112\implies 124

5 0
2 years ago
Answer correctly and i will give brainliest
Arlecino [84]

Answer:

yes it is because they are both going by two

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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