2/7x - 2/5x = 8
multiply both sides by 35
= 10x - 14x = 280
combine 10x and 14x
= -4x = 280
divide both sides by -4
x= -70
Answer:
(-1 1/2, 6)
Step-by-step explanation:
The mid point between A(-3,6) and B(0,6) represents the coordinates of point P, which is (x,y)
Hence,the coordinates, that is, AP: x = (-3 + 0)/2 = -3/2 = -1 1/2
also, BP: y = (6 + 6)/2 = 6
Therefore, the coordinates of point P = ( -1 1/2, 6)
Cual numeros? No hay nada
The regression equation which correctly models the data in this table is y = 1.49x - 107.5,
<h3>How to determine the regression equation?</h3>
From the table of data values, we have the following parameters:
∑x = 632
∑y = 404
∑x² = 80.142
∑xy = 51.448
Mathematically, the regression equation is represented by the following slope equation:
y = Bx + A
Next, we would determine A by using this expression:
A = (∑y·∑x² - ∑x·∑xy)/(n∑x² - (∑x)²)
A = (404×80,142 - 632×51,448)/(5×∑x² - (632)²)
A = (32,377,368 - 32,515136)/(5×80142 - 399,424)
A = -137,768/1286
A = 107.5
For B, we have:
B = (n∑xy· - ∑x·∑y)/(n∑x² - (∑x)²)
B = (5×51,448 - 632×404)/(5×∑x² - (632)²)
B = 1.49.
y = Bx + A
y = 1.49x - 107.5
Read more about regression equation here: brainly.com/question/28037520
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Hello there!
12/15 and 8/10 don't have the same value.
Reason:
let's simplify both.
12/3 = 4
15/3 = 5
12/15 = 5/4
8/2 = 4
10/2 = 5
8/10 = 4/5
5/4 is greater than 4/5
5/4 > 4/5
Hope i helped!
Let me know if you need anything else!
~ Zoe
