Match the operation with its inverse operation you would use to solve an equation for a variable. (7 points)
Multiplication - ?
Subtraction - ?
Radical symbol x - ?
x^3 - ?
Addition - ?
Division - ?
x^2 - ?
Answer options: division, subtraction, multiplication, addition, x^2, radical symbol 2, x^3, and 3 in the top of the radical symbol with an x under it.
Multiplication - division
Subtraction - addition
Radical symbol x - x^2
x^3 - 3 in the top of the radical symbol with an x under it
Addition - subtraction
Division - multiplication
x^2 - radical symbol 2
Answer options: division, subtraction, multiplication, addition, x^2, radical symbol x, x^3, and 3 in the top of the radical symbol with an x under it.
Multiplication - division
Subtraction - addition
Radical symbol x - x^2
x^3 - 3 in the top of the radical symbol with an x under it
Addition - subtraction
Division - multiplication
x^2 - radical symbol x
r u positively sure about your answer?
the equation: x^3 = -8 will have how many solutions for x?
A: Two solutions: x = -8/3 and x = 8/3 since x^3 equations always have 2 solutions
B: Two solutions: x = 2 and x = -2 since 2^3 = 8 and (-2)^3 = -8
C: One solution: x = -8/3 since the inverse operation is to divide by 3.
D: One solution: x = -2 since (-2)^3 = -8
C: One solution: x = -2 since (-2)^3 = -8
The equation x^3 = -8 will have one solution, which is x = -2. This is because (-2)^3 is -8.
The equation: x^2 = 25 will have how many solutions for x ? (1 point)
A: Two solutions: x = 25/2 and x = -25/2 since the inverse operation is division and x^2 equations always have 2 solutions.
B: One solution: x = 5 since 5^2 = 25
C: One solution: x = 25/2 since the inverse operation is to divide.
D: Two solutions: x = 5 and x = -5 since 5^2 = 25 and also (-5)^2 = 25 and x^2 equations always have 2 solutions.
B: One solution: x = 5 since 5^2 = 25
The equation x^2 = 25 will have one solution which is x = 5.
the equation: x^2 = 91 has what kind of solution(s) for x?
A: two rational, integer solutions.
B: two irrational solutions.
C: one rational, integer solution.
D: one irrational solution.
B: Two irrational solutions.
The equation x^2 = 91 has two solutions that are irrational numbers.
If you have a circle with an area of approximately 45 square feet, what is a good estimation for the radius of the circle? (4 points)
Step 1: What is the formula for finding the area of a circle?
answer to step 1:
Step 2: What would be the first step in solving for the radius?
answer to step 2:
Step 3: What would be the second step in solving for the radius?
answer to step 3:
Step 4: The approximate radius would be about ?
answer to step 4:
answer options: multiply by pi on each side of the equation, take the square root of each side of the equation, 3.8 feet, subtract pi from each side of the equation, 7.16 feet, 205 feet, A = 2pir^3, C = 2pir, 2.1 feet, divide by 2 on each side of the equation, square each side of the equation, A = pir^2, divide by pi on each side of the equation, or multiply by 2 on each side of the equation.