Find the solution of the square root of the quantity of x plus 3 plus 6 equals 9 and determine if it is an extraneous solution. ( A. x=0 extraneous; B. x=0 non-extraneous; C. x=6 extraneous; D. x=6 non-extraneous)
Answers
minus 6 both sides
√(x+3)=3
squar both sides
x+3=+/-9
minus 3 both sides
x=6 or -12
sub to see
√(6+3)+6=9
√(9)+6=9
3+6=9
9=9
true
other one
√(-12+9)+6=9
√(-9)+6=9
false (means this is an extranious answer)
x=6 and it is not extranious
D
72 is anres
Answer:
X=6 not extraneous
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Answers
Final answer:
The cost at car rental company B is more than the cost at car rental company A when the number of miles driven is greater than $15.
Explanation:
The cost at car rental company B is more than the cost at car rental company A when the number of miles driven is greater than $15.
To find this, you can set up an equation:
- The cost at car rental company A is given by: $45 x d, where d represents the number of days.
- The cost at car rental company B is given by: ($30 + $0.20m) x d, where m represents the number of miles driven.
So we need to find when ($30 + $0.20m) x d is greater than $45 x d.
($30 + $0.20m) x d > $45 x d
$30 + $0.20m > $45
$0.20m > $15
m > 75
Therefore, when the number of miles driven exceeds 75, the cost at car rental company B is more expensive.
Learn more about Car rental costs here:
#SPJ2
Answers
Answer:
40
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
Divide this by the value of 1 exterior angle to find the number of sides n
n = 360 ÷ 9 = 40
Answer:
Required Answer:-
Let the number of sides=x
- Each angle measures 9°
As we know that in a polygon
- Substitute the values
Number of sides=40.
Answers
Answer:
Brainliest plz
Step-by-step explanation:
20 x 15%
is equal too...
20 x 0.15
and that is equal to
...
3
Answers
"of" means ×
"is" means =
We need to find 4/7 of 35
4/7 of 35 = ?
4/7 × 35 = ?
4/7 × 35/1 = 140/7 = 20
He used 20 meters of rope.
B.) x = –1
C.) x = 1
D.) x = 6
Answers
Answer:
Option (d) is correct.
The excluded value of x for the given expression is 6.
Step-by-step explanation:
Given : Expression
We have to find the excluded value of x for the given expression .
Consider the given expression
Since, when x = 6 then the value of denominator becomes 0 and also, the expression becomes
, which makes the expression not defined.
Thus, The excluded value of x for the given expression is 6.
D.) x = 6
Answers
Answer:
2a=2
Step-by-step explanation:
math is the answer =)