Answer:
Step-by-step explanation:
10
,
−
5
,
−
14
3
,
9
,
3.77
,
−
1
3
π
,
9
,
−
3.8
,
23
The natural numbers are:
10
,
9
,
9
,
23
The whole numbers are:
10
,
9
,
9
,
23
The integers are:
10
,
−
5
,
9
,
9
,
23
The rational numbers are:
10
,
−
5
,
−
14
3
,
9
,
3.77
,
9
,
−
3.8
,
23
The irrational number is:
−
1
3
π
Answer:
((2 x^2 + 1)^2)/(x^2)
Step-by-step explanation:
Simplify the following:
(2 x + 1/x)^2
Hint: | Put the fractions in 2 x + 1/x over a common denominator.
Put each term in 2 x + 1/x over the common denominator x: 2 x + 1/x = (2 x^2)/x + 1/x:
((2 x^2)/x + 1/x)^2
Hint: | Combine (2 x^2)/x + 1/x into a single fraction.
(2 x^2)/x + 1/x = (2 x^2 + 1)/x:
((2 x^2 + 1)/x)^2
Hint: | Distribute exponents over quotients in ((2 x^2 + 1)/x)^2.
Multiply each exponent in (2 x^2 + 1)/x by 2:
Answer: ((2 x^2 + 1)^2)/(x^2)
Answer:
y=-5,x=2
Step-by-step explanation:
3x+3y=-9________________eqn 1
3x-3y=21________________eqn 2
using elimination method
3x+3y=-9
-
3x-3y=21
subtract equation 2 from equation 1
0+6y=-30
6y=-30
y=-30/6
y=-5
substitute the value of y in equation 1
3x+3y=-9
3x+3(-5)=-9
3x-15=-9
3x=-9+15
3x=6
x=6/3
x=2
The answer to this is B. y=-x-5.
