3x - y = -1 ⇒ 6x - 3y = -2
2x + y = -14 ⇒ <u>6x + 2y = -42</u>
<u>-5y</u> = <u>40</u>
-5 -5
y = -8
3x - (-8) = -1
3x + 8 = -1
<u> -8 -8</u>
<u>3x</u> = <u>-9</u>
3 3
x = -3
(x, y) = (-3, -8)
Answer:
The median is usually preferred in these situations because the value of the mean can be distorted by the outliers. However, it will depend on how influential the outliers are. If they do not significantly distort the mean, using the mean as the measure of central tendency will usually be preferred.
Answer:
b. f(x) = -2x +2
Step-by-step explanation:
The graph has a negative slope (m < 0) and a positive y-intercept (b > 0). The only equation with those characteristics is ...
f(x) = -2x +2
_____
<em>Additional comment</em>
The line on the graph appears to fall by 2 grid squares for each 3 to the right. That means it has a slope of ...
m = rise/run = -2/3
None of the offered equations have that slope. We have to assume the graph is "not to scale". Hence we can only comment on the signs of slope and intercept, and not their values.
You may want to discuss this question with your teacher.
20- 16.5= 3.5divuded by 3 = 1.17*8= 9.33 20-9.33= 10.67. His balance will be 10.67!
Answer with explanation:
Consider a vector having 4 elements
it's first and third elements are equal.
That is,
So, Dimension of vector=3