We have to round the value of 0.1561 to the nearest tenth.
The number after decimal is the number at tenth place. Consider the number to the right of the tenths place and use the number to determine if you will round up or stay the same. Notice that the number to the right of tenth place is more than or equal to 5 or less than 5. If that number is greater than or equal to 5, then the number will round up but if that number is less than 5, then the number will not round up. It will remain same.
Let us consider the given number 0.1561
The number at tenths place is 1
The number after the tenths place is 5 (which is either greater than or equal to 5)
So, the number will round up to 0.2
Answer:
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Step-by-step explanation:
thanks that's very generous
Can you repost this with a picture please ?
Answer:
- x -4 = (-3/2)(y +1)^2
- vertex: (4, -1)
- focus: (3 5/6, -1)
- directrix: x = 4 1/6
Step-by-step explanation:
To get your desired form, you must divide the equation by -2. Then you have ...
x -4 = (-3/2)(y +1)^2
This form shows you the vertex is (h, k) = (4, -1).
When the scale factor "a" is written as 1/(4p), then the value of p is the distance from the focus to the vertex. We can find p from ...
(-3/2) = 1/(4p)
p = 1/(4(-3/2)) = -1/6
Since the parabola opens to the left, the focus is ...
(4-1/6, -1) = (3 5/6, -1)
and the directrix is in the opposite direction, at x = 4 1/6.
Those are just repeating equivalent decimals
