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Alexxx [7]
3 years ago
8

X-5-z use x=-6 and z=3

Mathematics
1 answer:
Vinil7 [7]3 years ago
3 0
-2........................
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A coin contains 1.25 grams of nickel and 3.75 grams of copper, for a total weight of 5 grams what percentage of the metal in coi
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3.75/5 = .75
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75% is the answer
7 0
3 years ago
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Graph the following lines and using the graph determine several values of x for which the graph is positive (negative): y=−4x+3
True [87]

Answer:


Step-by-step explanation:

Given line is,

y=-4x+3

when, x=-1 , y=-4(-1)+3=4+3=7

when, x=0 , y=-4(0)+3=0+3=3

when, x=1 , y=-4(1)+3=-4+3=-1

So, we got the points  (-1,7) , (0,3) , (1,-1)

Now, putting the points in the graph and adding them , we will get the graph of given line.

Please check image for the graph.


Now for the second part-

The graph is positive means- it will be above the x-axis, that is y value will be positive.

From the graph we can see that, if x<0 , then y is positive.

So, any value of x which is less than 0 , will give the positive graph here.

6 0
3 years ago
Is 33 a prime number? Explain why or why not
viva [34]

Answer:

No

Step-by-step explanation:

It is not a prime number because it is divisible by 1, 3, 11 and itself, 33.

If it were just 33 and 1, it would be prime, but it has those extra factors

6 0
3 years ago
HELP I NEED HELP ASAP
anygoal [31]

Step-by-step explanation:

Pretty sure it's A. It should be the answer

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3 years ago
Twice a number,n, increased by 7 is equal to 19
rosijanka [135]
I think the answer is 6
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