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Lana71 [14]
3 years ago
13

Please help ill mark brainliest

Mathematics
2 answers:
tia_tia [17]3 years ago
5 0

Answer:

x=4 y=1

Step-by-step explanation:

given equation

x+y=5

so x= 5-y.......(i)

and

x-2y=2

so x= 2+2y........(ii)

then

5-y=2+2y

therefore y=1

and x=4

Firdavs [7]3 years ago
5 0

Answer:

5,0

Step-by-step explanation:

the blue line where it's at 5,0

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Naily [24]
The roots are 3 and 17 so the distributed equation is

(x-3)(x-17)

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x²-3x-17x+51

x²-20x+51

I hope I've helped! 
6 0
3 years ago
Catherine reads 7 1/2 pages of mystery book in 9 minutes. What is her average reading rate in pages per minute?
ki77a [65]
7 1/2  pages divided by 9 minutes is 5/6 pages per minute.
4 0
3 years ago
Determine the greatest intergral value of K for which 2x^2 - Kx +2 =0 will have non-real roots ...Use quadratic inequalities to
Mrac [35]

Answer:

Greatest integral value of K = 3.

Step-by-step explanation:

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2x^2 - kx + 9 = 0

The discriminant = (-k)^2 - 4*2*2 , so:

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k <  √16

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6 0
3 years ago
Solve for the roots in simplest form by completing the square <br><br> x^2-12x+20=0
Alex17521 [72]

Answer:

x = 10 or x = 2

Step-by-step explanation:

Solve for x:

x^2 - 12 x + 20 = 0

Hint: | Solve the quadratic equation by completing the square.

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x^2 - 12 x = -20

Hint: | Take one half of the coefficient of x and square it, then add it to both sides.

Add 36 to both sides:

x^2 - 12 x + 36 = 16

Hint: | Factor the left hand side.

Write the left hand side as a square:

(x - 6)^2 = 16

Hint: | Eliminate the exponent on the left hand side.

Take the square root of both sides:

x - 6 = 4 or x - 6 = -4

Hint: | Look at the first equation: Solve for x.

Add 6 to both sides:

x = 10 or x - 6 = -4

Hint: | Look at the second equation: Solve for x.

Add 6 to both sides:

Answer: x = 10 or x = 2

5 0
3 years ago
Help!! use division to change each fraction to a decimal
lakkis [162]
4/5=0.8
1/50=0.02
 Hope that helps

5 0
3 years ago
Read 2 more answers
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