Find the negative reciprocal of the slope of the original line and use the point-slope formula
Y -y1 =m(x -x1 ) to find the line perpendicular to y = 3x -2
Y -y1 =m(x -x1 ) to find the line perpendicular to y = 3x -2
Y = x^2 − 3x + 8. axis of symmetry
1 answer:
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Answer:
Sarah is 13 years old
Step-by-step explanation:
Represent Sarah's age with S
Her first brother's age with F
Her second brother's age with B
So, we have:
From the first statement, we have:
---- (1)
From the second, we have:
---- (2)
The product of their ages is 40.
First, we make F the subject in (1) and B the subject in (2)
Their product is represented as follows:
Substitute values for F and B
Open bracket
Subtract 40 from both sides
Factorize:
Split:
or
But Sarah's age can't be 0 because she has two younger brothers.
So, we stick to
Make S the subject
<em>Hence, Sarah is 13 years old</em>
Answer:
Explanation:
Given the irrational numbers:
In order to arrange the numbers from the least to the greatest, we convert each number into its decimal equivalent.
Finally, sort these numbers in ascending order..
The given numbers in ascending order is:
Note: In your solution, you can make the conversion of each irrational begin on a new line.