Answer:
y = 0.47x + 25
y1 = 41.45 and not 55.55
Step-by-step explanation:
Given that:
x = number of brochures
y = total. Cost
Total cost of 35 brochures = $41.45
Total cost of 65 brochures = $55.55
The ordered pairs :
(x1, y1) ; (x2, y2)
x1 = 35 ; y1 = 41.45 ; x2 = 65 ; y2 = 55.55
(35, 41.45), (65, 55.55)
The slope :
Slope (m) = change in y / change in x
m = (y2 - y1) / (x2 - x1)
m = (55.55 - 41.45) / (65 - 35)
m = 14.1 / 30
m = 0.47
The y intercept :
y - y1 = m(x - x1)
y - 41.45 = 0.47(x - 35)
y - 41.45 = 0.47x - 16.45
y = 0.47x - 16.45 + 41.45
y = 0.47x + 25
Lila incorrectly chose 41. 45 as y1
Answer:
495.3/950 and then mutiply by 100
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
7.8 is 7.8 not 9 they are both rational numbers
Answer:
-0.625
Step-by-step explanation:
Given that a fraction negative in value with numerator -5 and denominator 8.
We have to convert this into decimals. For that we add as many zeroes after decimal point after 5 and divide with 8. The quotient what we get is value of the fraction.
To find in decimals, let us divide 5 by adding zeroes to the right
8)5.00000{0.625
4.8
-------
20
16
--------
40
40
------
0
-------------------------------
Hence in decimal form the fraction -5/8 = -0.625
Using the factor theorem, the equation for q is:
The <em>Factor Theorem</em> states that a polynomial function with roots 
is given by:
In which a is the leading coefficient.
In this problem:
- Passes through the origin, so x = 0 is a zero, that is
. - x = i is a zero, and thus, it's conjugate also is, that is, x = -i, hence
- x = 7 - i is a zero, and thus, it's conjugate also is, that is, x = 7 + i, hence
Then, the equation is:
Considering that 
q(-1) = -520 means that when 
, and this is used to find a.
Hence, the equation is:
A similar problem is given at brainly.com/question/24380382
