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AleksandrR [38]
2 years ago
9

Find the possible value or values of y in the quadratic equation z^2 - 4z+ 4 =0

Mathematics
1 answer:
jeyben [28]2 years ago
5 0
Didn't you mean "Find the possible value or values of z?  y is not at all present in this equation.

z^2 - 4z + 4 = 0 can be factored into (z-2)(z-2).  Thus, the given equation has two equal, real solutions:  z=2 and z=-2.
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Answer:

A-140

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A starts at 0 and from the side you're measuring it would be 140 and not 40.

5 0
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40% of the 35 male guests wear glasses
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3 years ago
Please help me with steps ​
Kitty [74]

Answer:

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Step-by-step explanation:

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2 years ago
Identify the percent of change as an increase or a decrease. 4/5 to 3/5
vovikov84 [41]

Answer:

Decrease

Step-by-step explanation:

So, I encourage you to grab a calculator and see for yourself

Put in the function: 4/5 into a standard calculator. You will see that it will come out to .8

Put in the function: 3/5 into a standard calculator. You will see that it will come out to .6

.6 is less than .8, just as 3/5 is less than 4/5.

Another analogy that can be used is seeing the fraction as a real-life object.

Let's say that you make two pies. You cut the pie evenly into five slices. You set them on the table and leave them for whoever wants to eat them. You see that Pie 1 has two slices missing (3/5) and that Pie 2 has one slice missing. (4/5)

3 out of 5 slices are left of Pie 1.

4 out of 5 slices are left of Pie 2.

Pie 1 has less than Pie 2 does.

Hope this has helped!

6 0
3 years ago
A stack of books is 5 feet high of the average book is 3 inches Hugh how many books are in the stack
allochka39001 [22]

Answer:

20

Step-by-step explanation:

1) 5 feet is 60 inches

2)Divide 60 inches (total inches in one stack) by the 3 inches ( inches in the Average book)

3) 60/3=<u>20</u>

7 0
3 years ago
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