<span>The question is asking us to calculate how many envelopes are there in 7 packages if there are 75 in a package. For example: in 1 package there are 75 envelopes. In 2 packages there are 7 * 2 = 150 envelopes. In general, formula is : 75 * n, where n is the number of packages. Therefore, we will multiply 75 by 7. 75 * 7 = 525. Answer: B ) 525 envelopes.</span>
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Answer:</h2>
Option: C is the correct answer.
C) The equation is y = 2x, and the height is 40 inches.
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Step-by-step explanation:</h2>
We could clearly observe that the line of best fit passes through the point (0,0) and (20,40)
We know that the equation of a line passing through point (a,b) and (c,d) is calculated by the help of the formula:
Here we have:
(a,b)=(0,0) and (c,d)=(20,40)
Hence, the equation of line of best fit is:
Hence, the equation is:
y=2x
Also when x=20 we have:
y=40
X² - y = -2 .................. equation 1
<u>-x + y = 4</u> .................. equation 2 from the y's we can obtain y - y = 0
the new equation will be
x² - x = 2 to for a quadratic equation make the equation equals to zero
x² - x - 2 = 0
x² - 2x + x - 2 = 0 using factorization method
x(x - 2) + 1(x - 2) = 0
(x + 1)(x - 2) = 0
x + 1=0 and x - 2=0
x = -1 or 2
subtitute x= -1 in equation 2 subtitute x= 2 in equation 2
-(-1) + y = 4 -(2) + y = 4
1 + y = 4 -2 + y = 4
y= 4 - 1 y= 4 + 2
y= 3 y= 6
the values of x are -1 and 2 . The values of y are 3 and 6
when x is -1, y is 3
when x is 2, y is 6...
Answer:
The set of ordered pairs that is not a function is
a. {(1,-5), (2,-4),(1,-4)}
The reason is that it is not a function is because the function is supposed to be 1 to 1. Each x value for y value
Step-by-step explanation: