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White raven [17]
3 years ago
9

What are the answers for 6.,7., and 8. Tell me how please as well

Mathematics
1 answer:
Sergio [31]3 years ago
8 0
Number 6 is A the slope of the graph is -1 and the starting point is seven, so that means your equation is y = -1x +7, it can also be written as y=-x+7

Number 7 is C if I’m not mistaken, because as the absent goes up the dots for grade point average goes down

Number 8 is A, because as more missing assignments goes up your grade will go down meaning it will be negative
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If 1/a + 1/b =1/c and ab=c,what is the average of a and b?
goblinko [34]
If we solve the left side of the given equation,
                                  1/a + 1/b = 1/c
 we get an answer of,
                                    b+a / ab = 1/c
Since ab = c, we can conclude that b + a is 1. The average of these two numbers is equal to there sum divided by 2. The answer is therefore equal to 0.5. 
4 0
2 years ago
A commuter train travels 65 kilometers in 27 minutes. What is it’s speed in kilometers per hour?
Inessa05 [86]

Answer:

Per hour: 2.40740740741

Step-by-step explanation:

you have to divided 65 and 27 so

65/27

which is 2.40740740741

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3 years ago
What is the answer for baby eleaphants
Tatiana [17]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
show that the sum of the x- and y- intercepts of any tangent line to the curve sqrt(x) sqrt(y) = sqrt(c) is equal to c.
expeople1 [14]
The answer is <span>√x + √y = √c </span>
<span>=> 1/(2√x) + 1/(2√y) dy/dx = 0 </span>
<span>=> dy/dx = - √y/√x </span>

<span>Let (x', y') be any point on the curve </span>
<span>=> equation of the tangent at that point is </span>
<span>y - y' = - (√y'/√x') (x - x') </span>

<span>x-intercept of this tangent is obtained by plugging y = 0 </span>
<span>=> 0 - y' = - (√y'/√x') (x - x') </span>
<span>=> x = √(x'y') + x' </span>

<span>y-intercept of the tangent is obtained by plugging x = 0 </span>
<span>=> y - y' = - (√y'/√x') (0 - x') </span>
<span>=> y = y' + √(x'y') </span>

<span>Sum of the x and y intercepts </span>
<span>= √(x'y') + x' + y' + √(x'y') </span>
<span>= (√x' + √y')^2 </span>
<span>= (√c)^2 (because (x', y') is on the curve => √x' + √y' = √c) </span>
<span>= c.  hope this helps :D</span>
5 0
3 years ago
FINISH THE LYRICS: I GET SO WEAK ON MY KNEES I CAN....
Anika [276]

Answer:

hardly speak

Step-by-step explanation:

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2 years ago
Read 2 more answers
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