Answer:
When both equations have the same slope, but not the same y-intercept, they'll be parallel to each other and no intersections means no solutions. When both equations have different slopes than regardless of the y-intercept they'll intersect for certain, therefore it has exactly one solution.
Step-by-step explanation:
Got this from google hope it helps
Answer:
14 hours
Step-by-step explanation:
Let's call the task 3x
The older bro does twice as younger so it would be 2x long and younger brother work x long
Since the totsl of work is 3x = 21 x woul be 21÷3 = 7
the older brother must work 2 × 7 = 14 hours long
Using the numbers 1 through 9 only once in the boxes, the largest value of x you can get is <u>7</u>.
<h3>What are mathematical operations?</h3>
Mathematical operations refer to the calculation of values using operands and mathematical operators.
Mathematical operations are formed like functions to take zero or more input values (operands) to a well-defined output value.
Some of the mathematical operators perform addition, subtraction, multiplication, division, exponentiation, and modulus operations.
<h3>Data and Calculations:</h3>
Mx + y = z
Let m = 1
x = 7
y = 2
1 x 7 + 2 = 9
7 + 2 = 9
9 = 9
Thus, using the numbers 1 through 9 only once in the boxes, the largest value of x you can get is <u>7</u>.
Learn more about mathematical operations at brainly.com/question/20628271
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X^2+3x+3+[(2x^2+13+15)/(x+5)] is equivalent to option 4. im sorry if i got my math wrong but i hope this helps.
Answer:
the correct answer is 1 29/42
Step-by-step explanation:
