An appliance store decreases the price of a 19 inch television set 21% to a sale price of $475.19. What was the original price
1 answer:
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I am assuming that your function is
due to the fact you did not write x-1
the domain is the numbers you can use for x without getting wierd results
wierd results happen when you divide by 0 or take the square root of a negative number
the arean't any division signs so no division by 0
but there is a square root sign
so the part under the square root must be greater than or equal to 0
find where it is equal to 0
0=x+6
minus 6
-6=x
when x is smaller than -6, we get undefined because we get square root of a negative
so the domain (numbers you can use for x) is D={x|x≥-6} or basically x≥-6
the domain is the numbers you can use for x without getting wierd results
wierd results happen when you divide by 0 or take the square root of a negative number
the arean't any division signs so no division by 0
but there is a square root sign
so the part under the square root must be greater than or equal to 0
find where it is equal to 0
0=x+6
minus 6
-6=x
when x is smaller than -6, we get undefined because we get square root of a negative
so the domain (numbers you can use for x) is D={x|x≥-6} or basically x≥-6
Answer:
Step-by-step explanation:
cosine of ∠T =
<u>For ∠T,</u>
- Adjacent side = 33
- Hypotenuse = 65
<u>cosine of ∠T = </u>
Answer:
Please check the explanation.
Step-by-step explanation:
If the ratio y/x is the same for all related pairs of x and y, it means it represents a proportional relationship.
In other words, '' varies proportionally with '
' or that '
' is directly proportional to '
'.
When we say the ratio is the same, it means when '' increases, '
' increases and as '
' decreases, '
' decreases
Using the equation
y ∝ x
y = kx
k = y/x
Where 'k' is the proportionality constant.