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wariber [46]
3 years ago
12

Y = x^2- 4x + 8

Mathematics
1 answer:
Setler [38]3 years ago
6 0

Answer:

y

=

−

(

x

−

1

)

2

−

4

Step-by-step explanation:

y

=

A

x

2

+

B

x

+

C

into

y

=

(

x

−

h

)

2

+

k

To do that, we complete the square:

y

=

−

x

2

+

2

x

−

5

y

=

−

(

x

2

−

2

x

)

−

5

y

=

−

(

x

2

−

2

x

+

1

)

−

5

+

1

y

=

−

(

x

−

1

)

2

−

4

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A rectangle with a perimeter of 54ft has a length that measures 23.5ft what is its width?
prohojiy [21]

Answer:

hello :

the perimeter is : p = 2(w +l)

w :width.... l : the  length

54 = 2(w + 23.5)

w+23.5 = 27

w =23.5 ft



8 0
3 years ago
Tyrone wants to remodel his bathroom floor using 168 tiles. If one tile costs $7.51, estimate the total cost for the tile projec
Ludmilka [50]
Answer: $1,261.68
Multiply the cost for one tile ($7.51) by the number of tiles being used (168)
6 0
3 years ago
Please help me do this 2 assignments (:
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4)120
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8 0
4 years ago
Solve<br> the quadratic equation<br> 4X^2+ 3x-27=0
maxonik [38]

Answer:

x = -3 or 9/4

Step-by-step explanation:

(x+3)(4x-9)

or use the quadratic formula

5 0
3 years ago
The vertex of this parabola is at (2, -4). When the y-value is -3, the x-value is -3. What is the coefficient of the squared ter
lyudmila [28]

Answer:

The squared term is 1/25

Step-by-step explanation:

The parabola equation in the vertex form is

y = a \times (x - h)^2 + k

where point (h,k) is the vertex and a is the squared term. In this case h = 2 and k = -4. On the other hand, we know that y = -3 and x = -3 are in the parabola. Replacing these values in the formula gives

-3 = a \times (-3 - 2)^2 - 4

Solving for a

-3 + 4 = a \times (-5)^2

1 = a \times 25

a = \frac{1}{25}

6 0
3 years ago
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