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zalisa [80]
3 years ago
6

Which of the following sets could be the sides of a right triangle? {2, 3, square root of 13} {2, 2, 4} (1, 2,square root of 3 }

Mathematics
1 answer:
ddd [48]3 years ago
8 0

Answer:

3545344534

Step-by-step explanation:

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Quick i need help so bad :(
Vanyuwa [196]

There are 4 triangles with base of 5 and height of 8.4

Area of triangle = 1/2 x base x height

Area of triangle = 1/2 x 5 x 8.4 = 21 m^2

Multiply by 4 = 21 x 4 = 84 m^2

Area of the base = length x width = 5 x 5 = 25 m^2

Total area = 84 + 25 = 109 m^2

8 0
3 years ago
F(x) = x2 + 2x - 2<br> Show graph
Alexandra [31]

Answer:

Step-by-step explanation:

f(x) = x2 + 2x - 2  should be rewritten using " ^ " to indicate exponentiation:

f(x) = x^2 + 2x - 2.

We find a couple of key points and use the fact that this parabola is symmetric about the line

          -2

x = ----------- = -1.  When x = -1, y = f(-1) = (-1)^2 + 2(-1) - 2, or 1 - 2 -2, or -3.

        2(1)

Thus the vertex is at (-1, -3).  The y-intercept is found by letting x = 0:  y = -2.  The axis of symmetry is x = -1.

Graph x = -1 and then reflect this y-intercept (0, -2) about the line x = -1, obtaining (-2, -2).  If necessary, find 1 or two more points (such as the x-intercepts).

To find the roots (x-intercepts), set f(x) = x^2 + 2x - 2 = 0 and solve for x.

Completing the square, we obtain x^2 + 2x + 1 - 2 = + 1, or (x + 1)^2 = 3.

Taking the square root of both sides yields x + 1 = ±√3.  One of the two roots is x = 1.732 - 1, or 0.732, so one of the two x-intercepts is (0.732, 0).

6 0
3 years ago
Directions: select the correct answer from the drop-down menu.
Andreas93 [3]

Answer:

B

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
A+(−5)=−12 please need the answer now!!!!!
vovikov84 [41]
A + (-5) = -12
First isolate your variable so move the -5 over (by adding 5 to both sides)
Then you will have a = -12+5
Simplify and you get A= -7
4 0
2 years ago
Read 2 more answers
Tai designed a staircase with a height-to- base ratio of 3 : 5. The height of the staircase is 9 feet. What should the base of T
oee [108]

Answer:

15

Step-by-step explanation:

9/3 = 3

5x3 = 15

3 0
3 years ago
Read 2 more answers
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