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Leya [2.2K]
3 years ago
5

Low on time help please

Mathematics
2 answers:
Allisa [31]3 years ago
5 0
The range is all of the possible outputs when considering a function. So, when you plug in 0, you get -1, when you plug in 1, you get -1/2, and when you plug in 2, you get 1. So, the range is {-1, 1}. Hope this makes sense! 
SpyIntel [72]3 years ago
4 0
The answer that I had gotten to my answer was the third one.
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help it is due today and not links or files of downloads of anything like that just type in your answer plz and thank u :)
pantera1 [17]
The answer should be x=4
4 0
3 years ago
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(15 PTS) Help me plz.
OlgaM077 [116]

Answer:

1.) C      2.) B         3.) B

Step-by-step explanation:

I had to do the same thing :)

8 0
3 years ago
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Pythagoras question plz help
motikmotik
From the two right triangles, you can write the following equations using the Pythagorean theorem. Let's call that shared leg in the middle "y"

y^2 + b^2 = a^2
y^2 + c^2 = x^2


y^2 + b^2 = a^2
re-write this to get "y" alone for substitution.
y^2 = a^2 - b^2
substitute (a^2 - b^2) for y^2 in the other equation. y^2 + c^2 = x^2

a^2 - b^2 + c^2 = x^2

Now put in the values given for a,b,c to solve for x

(7.1)^2 - (5.6)^2 + (5.7)^2 = x^2
51.54 = x^2
square root
7.2 = x


6 0
3 years ago
The height of a triangle is 8ft greater than the base. The area of the triangle is 136.5 square ft. Find the length of the base
mixer [17]

Answer:

the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

Step-by-step explanation:

Note that the formula for the area of a triangle is A = (1/2)(base)(height).  Let's abbreviate that to A = (1/2)(b)(h).   We are told that h = b + 8.

Then A = 136.5 = (1/2)(b)(b + 8), or

               (after multiplying both sides by 2)

          A = 273 = b^2 + 8b

                which, when put into standard quadratic form, becomes:

b^2 + 8b - 273 = 0

The coefficients of this quadratic are a = 1, b = 8 and c = -273.

Thus, the discriminant is b^2 - 4ac, or 64 - 4(1)(-273) = 1156 = 17^2.

The roots are then

      -8 ± √1156            -8 ± 17

x = --------------------  =  ------------ = 9/2 and -25/2

              2                          2

Only the root 9/2 makes sense here, because measurements of length are positive.

Thus, the base is 9/2 ft and the height is 9/2 + 8, or 25/8, ft.

3 0
3 years ago
Please help with triangles in a pic.
GenaCL600 [577]
The 3 angles of a triangle have to add up to 180 degrees.  Since we are given 2 of the angles, all we have to do is add them up and then subtract from 180 to get the 3rd.

112 + 41 = 153
180 - 153 = 27

Angle 2 = 27 degrees.
8 0
3 years ago
Read 2 more answers
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