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Tems11 [23]
3 years ago
7

Solve x - y = 5 for y

Mathematics
1 answer:
olga55 [171]3 years ago
6 0
X - y = 5
x = y + 5
y = x - 5
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How do i complete the square y= X2+8X-4
Salsk061 [2.6K]
For x²+bx+c, to complete the square, you add (half of b)²
b=8 in this case, so you add 4², which is 16
x²+8x+16-16-4
y=(x+4)²-20 is the final form.
4 0
3 years ago
What is the value of the expression below when a = 5?<br> ​<br> ​ 7a - 4
Ostrovityanka [42]

Answer:

31

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please dont steal points only real answers
morpeh [17]
1. 4 1/5
2. 11/24
3. 12 1/4
4. 2
5. 3 5/12

I did the math but I’m sorry if it’s not all correct
8 0
3 years ago
¿Cual es el monto producido por un capital de 7200 colocados al 4% anual durante 3 años y 4 meses ?
Ilia_Sergeevich [38]

Answer:

3 años 4 meses

 4   primer año

 4    segundo año

4    tercer año pero nos falta 4 meses  4/12 = .33333  esto x 4 los meses =    1.3333

____

13.3333

7200 * .133333= 959.9976  por aproximacion son 960

7200+960 = 8160 Es el monto producido

Opcion C

3 0
3 years ago
Sunhee had four plastic shapes a square, a circle, and a pentagon in how many ways can she line up the four shapes of the circle
julsineya [31]

Answer:

only three shapes are mentioned.

But anyhow, 4 shapes allow the following reasoning...

you can start lining up with any of the for shapes, so you have 4 possibilities, for the second position you have 3 possibilities, for the third 2 and for the last only 1.

so 4*3*2*1= 24 possible ways

but with the added rule to keep the circle and the square apart, we have to reduce the number.

by the same step-by-step reasoning we get

4 possibilities for the 1st item

only 2 possibilities for the 2nd item

(if 1st is square or circle, the other one's not an option, if it's not we have to choose one of them to not place them both at point 3 and 4)

only 1 choice for the 3rd item

(reasoning as above, if 2nd is square or circle, we have to the only other, if it isn't, we can put it here at 3rd position)

plus scenarios where either square or circle are on 1st point, the other's on 4th.

I guess that makes 14 possible arrangements

5 0
3 years ago
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