Answer: rational
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that
(3x) is raised to power 5
(3x)^5
Then,
Using indices
(AB)ⁿ = Aⁿ•Bⁿ
Then,
(3x)^5= 3^5•x^5
Then, 3^5 means=3×3×3×3×3=243
So,
(3x)^5= 243x^5
Answer:
x = -9, y = 5
Step-by-step explanation:
Since we need to solve this system of linear equations by substitution, let's transform the second equation into the form, x = ay + b. We start off with x - 3y = -24, subtract 3y from both sides, and we get x = 3y - 24. Then, substitute the expression 3y - 24 for y in 2x + 9y = 27.
2(3y - 24) + 9y = 27 Substitute 3y - 24 for x.
6y - 48 + 9y = 27 Distribute 2.
15y = 75 Add & subtract to combine the like terms.
y = 5 Divide by 15.
Now that we have the value of y, we can find x by substituting 5 for y in any of the equations. Let's use 2x + 9y = 27 for example.
2x + 9(5) = 27 Substitute 5 for y.
2x + 45 = 27 Multiply.
2x = -18 Subtract.
x = -9 Divide by 2.
Answer:
This is true
Step-by-step explanation:
The best way to see if it right or wrong, the answer is you have to apply it into the equation. (10,0) means x would be =10 and y = 0, when you change this into the equation, you will get:
5*0 + 2*10 = 20
0 + 20 = 20
20 = 20
This is true
Hope this help you with following questions :3
