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Concept explainers
a.
To determine whether each expression is rational or irrational.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 92E
Irrational number
Explanation of Solution
Given information:
Expression
Calculation:
Expression
It is irrational because sum of a rational number and irrational number is a irrational number.
b.
To determine whether each expression is rational or irrational.
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 92E
Rational number
Explanation of Solution
Given information:
Expression
Calculation:
Expression
On solving
On solving
It is a rational number
c.
To determine whether each expression is rational or irrational.
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 92E
Irrational number
Explanation of Solution
Given information:
Expression
Calculation:
Expression
It is an irrational number because a rational number divided by an irrational number is an irrational number.
d.
To determine whether each expression is rational or irrational.
d.
![Check Mark](/static/check-mark.png)
Answer to Problem 92E
Irrational number
Explanation of Solution
Given information:
Expression
Calculation:
Expression
It is irrational because sum of an irrational number with another irrational number is a irrational number.
e.
To determine whether each expression is rational or irrational.
e.
![Check Mark](/static/check-mark.png)
Answer to Problem 92E
If
It is rational number
If
It is irrational number
Explanation of Solution
Given information:
Expression
Calculation:
Expression
If
It is rational number
If
It is irrational number
f.
To determine whether each expression is rational or irrational.
f.
![Check Mark](/static/check-mark.png)
Answer to Problem 92E
Explanation of Solution
Given information:
Expression
Calculation:
Expression
If
It is rational number
If
It is irrational number
Chapter 9 Solutions
BIG IDEAS MATH Algebra 1: Common Core Student Edition 2015
- Write a quadratic equation in factored form that has solutions of x = 2 and x = = -3/5 ○ a) (x-2)(5x + 3) = 0 ○ b) (x + 2)(3x-5) = 0 O c) (x + 2)(5x -3) = 0 ○ d) (x-2)(3x + 5) = 0arrow_forwardA vacant lot is being converted into a community garden. The garden and a walkway around its perimeter have an area of 690 square feet. Find the width of the walkway (x) if the garden measures 14 feet wide by 18 feet long. Write answer to 2 decimal places. (Write the number without units). Hint: add 2x to each of the garden dimensions of 14 x 18 feet to get the total area for the length multiplied by width.arrow_forwardSolve x-1 x+2 = 12 3 4 Your Answer: Answerarrow_forward
- Find the solutions to the following equation 21x²+5x=6 ○ a) -3/7, 3/2 ☐ b) -2/3, 3/7 ○ c) -7/3, 3/2 ○ d) -2/3, 7/3arrow_forwardListen Solve the quadratic equation. Write the one solution, do not write x =. 2 x²+6x+9= 0 বarrow_forwardSolve the rational equation 14 1 + x-6 x x-7 x-7 ○ a) x = 1, x = 8 ○ b) x = 1 ○ c) x = 7 ○ d) x = 1, x = 7arrow_forward
- Solve the absolute inequality | x + 5 > 3 ○ a) (-∞, -8] U[-2, ∞0) ☐ b) (-8, -2) c) (-2, ∞0) ○ d) (-∞, - 8) U(-2, ∞0)arrow_forward1) Listen Describe the error in the problem X 3 X x 3 - 2 = 25x = 0 25x 25 x = ±5arrow_forwardA falling object travels a distance given by the formula d = 6t + 7t² where d is in feet and t is the time in seconds. How many seconds will it take for the object to travel 115 feet? Round answer to 2 decimal places. (Write the number, not the units). Your Answer:arrow_forward
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