Answer:
Step-by-step explanation:
-x + 2 = 3x + 6
3x + 6 = -x + 2
4x + 6 = 2
4x = -4
x = -1
y = 1 + 2 = 3
(-1, 3)
Answer:
It is not. A multiplicative inverse is the reciprocal for a number. For a fraction, the form would change from a/b to b/a. In this case the multiplicative inverse of 7/8 would be 8/7.
Answer:
7/3 =x
Step-by-step explanation:
2x+3=5x-4
Subtract 2x from each side
2x-2x+3=5x-2x-4
3 = 3x -4
Add 4 to each side
3+4 = 3x
7 = 3x
Divide by 3
7/3 =3x/3
7/3 =x
This function is in vertex form: f(x)=a(x-h)^2 - k
Where (h , k) is the vertex. x=h is the axis of symmetry.
Vertex (1,-5) axis of symmetry x = 1
Using the concept of standard deviation, it is found that the standard deviation of the data-set will remain the same.
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- The mean of a data-set is given by the <u>sum of it's observations, divided by the number of observations</u>.
- The standard deviation is given by the <u>square root of the sum of the differences squared of each observation and the mean, divided by the one less than the number of values</u>.
- If all observations are increased by a value x, the mean will also increase by x.
- In the standard deviation, at the sum of the differences squared of each observation and the mean, each observation is increased by x, as is the mean, thus, the sum stays the same, while the standard deviation also stays the same.
A similar problem is given at brainly.com/question/18342323