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s344n2d4d5 [400]
4 years ago
15

The length of a rectangle is 3 meters more than twice its width.The perimeter of the rectangle is 48 meters. Let W represent the

width.
Mathematics
1 answer:
lord [1]4 years ago
8 0
Perimeter of a rectangle: 2(l+w)

Let width be 'x'

Length is 3 meters more than twice 'x'
Length= 2x+3.

L= x
W = 2x+3


Formula =
2(x+2x+3)
2(3x+3)
6x+6.
6(x+1)
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Using the completing-the-square method, rewrite f(x) = x2 − 6x + 2 in vertex form.
Irina18 [472]

Answer:

f(x)=(x-3)^2-7

Step-by-step explanation:

Vertex form: f(x) = a(x-h)^2+k

x^2-6x+9+2=f(x)+9

(x-3)^2+2=f(x)+9

f(x)=(x-3)^2-7



8 0
4 years ago
Write an equation expression with positive exponents only.
svlad2 [7]

Answer:

x^4 * (1/y^2)

Step-by-step explanation:

A negative exponent is just the reciprocal of the positive version of the exponent.

4 0
3 years ago
I need help with this question​
vovangra [49]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Hey can I have help with this question. An explanation would be great as I find things difficult to understand :)
GalinKa [24]

Answer:

(0, -\frac{15}{2} )

Step-by-step explanation:

When a straight line crosses the y-axis, the point that touches it is called the y-intercept. We can find the y-intercept by plugging in zero as the value for 'x', as any x value on the y-axis is zero. So plugging in x = 0 into the equation '3x - 2y = 15', we get -2y = 15, so y = -15/2. The point would be (0, -\frac{15}{2} ), as x = 0 when y = -15/2.

5 0
2 years ago
The graph shows the system ​ {y=2x+1
hjlf
Y = 2x + 1
y = x²+1
reemplazando
2x+1 = x²+1
ordenando
0=x²-2x
donde
0 = x (x-2)
resolviendo
0=x      v     x-2=0
0 =x            x= 2

si x=0  entonces y = 1    par (0,1)
si x=2  entonces y= 5     par (2,5)

respuesta  A

8 0
3 years ago
Read 2 more answers
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