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Zigmanuir [339]
3 years ago
9

ABCD is a rectangle. Find the length of each diagonal. AC = 2(x – 3) BD = x + 5

Mathematics
1 answer:
postnew [5]3 years ago
3 0
Diagonals of rectangles are equal. AC = BD, so 2(x-3) = x+5. 2x - 6 = x+5. x = 11. Plug this into x+5 and you get 11 +5 = 16.

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To repair a roof that is 4 meters high Mr. Jeff leans a 5-meter ladder against the side of the building. To reach the roof how f
ANTONII [103]

hi have a good day.

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4 0
2 years ago
Create a data set describing two variables, with at least five data points, that has an equation for the line of best fit of y =
Ira Lisetskai [31]

Answer:

X = 2, 4, 6, 7, 9

Y = 29, 33, 37, 39, 43

Step-by-step explanation:

Given a best fit line of :

y = 2x + 25

Take points X as :

X = 2, 4, 6, 7, 9

X = 2

y = 2(2) + 25 = 4 + 25 = 29

X = 4

y = 2(4) + 25 = 8 + 25 = 33

X = 6

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X = 7

y = 2(7) + 25 = 14 + 25 = 39

X = 9

y = 2(9) + 25 = 18 + 25 = 43

5 0
2 years ago
On the graph of f(x)=sinx and the interval [2π,4π), for what value of x does f(x) achieve a minimum?
lawyer [7]

Answer:

Step-by-step explanation:

The minimum value of sinx is -1 when x = 3π/2, 7π/2, ...

In [2π, 4π), x = 7π/2

8 0
2 years ago
If P(x) = ax 3 + bx - 3 and P(-1)-0, then the value of P(1) is:
sergey [27]

Answer:

(a) -6

Step-by-step explanation:

P(x) = ax^3 +bx - 3

  • P(-1) = -a-b-3 = 0
  • therefore a+b=-3
  • P(1) = a+b-3
  • P(1) = -3 - 3 = -6
  • (a)
7 0
3 years ago
Luanne made a photocopy of a drawing of a rectangle. The original drawing was 4.5 inches wide and 6 inches long. The copy was 6.
san4es73 [151]
The scale factor is:
6,75/4,5 = 9/6 = 1,5

So you divide the corresponding lengths and the ratio you get is the scale factor. Hope it helps!
8 0
3 years ago
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