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Elza [17]
3 years ago
6

Find the area of the triangle when the coordinates are (2.5,4.5),(2,0),(9,2)

Mathematics
1 answer:
HACTEHA [7]3 years ago
6 0
The area of the triangle is 14.625.... in order to find the area of a triangle just use this formula b×h÷2
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The perimeter of a rectangular garden is 40 it. The length is 2 ft more than the width. Find the length and the width of the gar
alexgriva [62]

Answer: Length = 11

              Width = 9

Step-by-step explanation:

Let x represent the unknown length.

Let x - 2 represent the unknown width.

The perimeter is equal to 2 times x + (x -2)

Equation:

2 (x + (x - 2)) = 40

x + (x - 2) = 40/2

x + x - 2 = 20

2x - 2 = 20

2x -2 + 2 = 20 + 2

The length is: 2x = 22 -> x = 22/2 -> x = 11

The width is: x - 2 = 9

5 0
2 years ago
Find the values of x and y.
Harrizon [31]
4x+5x = 90
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10y + 10 +5(10) = 180
10y + 60 = 180
10y = 120
    y = 12

answer
<span>d) x = 10, y = 12</span>
5 0
3 years ago
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4. Let f(x) = 2x +1 and g(x) = x². Find (gºf)(a).
PolarNik [594]

Answer:

Step-by-step explanation:

hello :

f(x) = 2x +1 and g(x) = x².

(gºf)(a)= g(f(a)) = g(2a+1) = (2a+1)² = 4a²+4a+1

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3 years ago
You move left 6 units. You end at (-3, 3). Where did you start?
Komok [63]

Answer:

-3,-3

Step-by-step explanation:

(-3,3) - (0,6)

7 0
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What equation could be used to find the number of minutes, m, in h hours?
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3 years ago
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