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Ainat [17]
4 years ago
7

Given d(x) = x, find d(-8).d(-8) =​

Mathematics
1 answer:
sineoko [7]4 years ago
6 0

Answer:

d(-8)=-8 . it is very easy

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What is the y intercept of the graph of the equation y=3(2)^x
zhenek [66]

Answer:

y-int. is (0,3)

Step-by-step explanation:

7 0
3 years ago
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What is the slope of the line that passes through the points (4, -9) and (-10, 18)?
Romashka [77]
-27/14


The formula is y2-y1 over x2-x1. If you plug in you points that would be 18-(-9) over -10-4. Subtract and that’ll be your answer. Hope this helps!
4 0
3 years ago
Write an equation of the line that passes through (2 , 0) and is perpendicular to the line y=-1/7x-3
aleksley [76]

Answer:

y = 7x - 14

Step-by-step explanation:

If the given line has slope -1/7, then any perpendicular line has the slope which is the negative reciprocal of -1/7.  That is +7.

Apply the slope-intercept formula for the equation of a straight line, using 0 for y, 2 for x and searching for the y-intercept value b:

0 = 7(2) + b.  Then b = -14, and the desired equation is y = 7x - 14.

3 0
3 years ago
1.2n+12!/n-1!<br><br><br><br> 2. 4n+3!/2n+1!
Naddik [55]
Are you sure there is no bracket in the denominators (n-1)! if not then the answer is:

1) 2n + 12!/2n -1 ===> 2n + (479,001,600)/n -1 or (2n²-n+12!)/n
2) 4n+3!/2n +1! ====>4n +3/n +1
3 0
3 years ago
Solve for x9(x + 1) = 25 + x
vaieri [72.5K]
When you expand the equation, you will have
9x + 9=25 + x
Next you have to collect like terms
+x will go over the equality sign to become -x. The same applies to +9
9x - x=23 - 9
9x minus x is 8x
8x=14
Divide both sides by 8
x=14/8
You will have 1 6/8
6 is the remainder while 1 is the number of times 8 divided 14.
In decimal, it will be 1.75
Hope that helped. Good luck
8 0
3 years ago
Read 2 more answers
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