Answer:
pat a- x=50-13.5
part b- x=36.5
sorry if it isn't right
Step-by-step explanation:
Answer:
No real roots.
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Quadratic Formula:
<u>Algebra II</u>
Step-by-step explanation:
<u>Step 1: Define</u>
-3x² + 2x = 1
<u>Step 2: Rewrite in Standard Form</u>
- Subtract 1 on both sides: -3x² + 2x - 1 = 0
<u>Step 3: Define</u>
a = -3
b = 2
c = -1
<u>Step 4: Find roots</u>
- Substitute in variables:
- Exponents:
- Multiply:
- Subtract:
Here we see that we cannot take the square root of a negative number. We will get no real roots and only imaginary ones.
Domain is (-infinity, infinity)
Range is [8, infinity)
Answer:
Step-by-step explanation:
Given system:
- x + 4y = -8
- -1/4x + y = -1
1. Multiply the second equation by - 4 to get:
- (- 4)(-1/4x + y ) = (- 4)(- 1)
- x - 4y = 4
2. Now, add this up with the first equation:
- x + 4y + x - 4y = - 8 + 4
- 2x = - 4
- x = - 2
3. Find the value of y:
- - 2 + y = - 8
- y = - 8 + 2
- y = - 6
The solution is (- 2, - 6)
Response:
8.47 AM
Explanation step-by-step:
Everyone will take 16 hours,
This could take 18 hours for Brianne;
In 1 hour, then a fraction of 1/16 is achieved by Allen.
A proportion of 1/18 is done in 1 hour Brianne
Within one hour, they complete a fraction (1/18 + 1/16) while operating together.
= 144/17,
Therefore, they must work together to finish the whole project;
144/17 = 8.47 a.m.
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CORRECT ME IF I'M WRONG!
<em>Hope that helps</em>
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If you could make this answer Brainiest that would be great!