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anastassius [24]
4 years ago
5

Tell whether the 3 lengths are the sides of a right triangle: 56 90 106

Mathematics
2 answers:
PIT_PIT [208]4 years ago
5 0
Based off of inferring that you meant angles rather than "lengths"...

All angles of any triangle must add up to 180<span>° to be classified as a triangle.

Therefore NO, given that the triangle provided adds up to 252</span><span>° </span>
Sever21 [200]4 years ago
4 0
No. It equals 252 which would not be 180
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Calculate the size of angle x. Give your answer to 1 decimal place
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Step-by-step explanation:

8 0
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Which of the following is the solution to 3/x + 2/(x+1) = 3/5x?
sergey [27]

Answer:

3/x + 2/(x+1) = 3/5x

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15x + 15 + 10x = 3x + 3

15x + 10x - 3x = -15 + 3

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3 0
4 years ago
Which equation does the graph of the systems of equations solve?
mihalych1998 [28]

Answer:

\text{B. }\frac{1}{3}x-3=-x+1

Step-by-step explanation:

Let's start by taking a look at the blue line. The slope of any line that passes through two points is equal to the change in y-values over the change in x-values. We can see that the line passes through points (0, 1) and (1, 0). Assign these points to (x_1,y_1) and (x_2, y_2) (doesn't matter which you assign) and use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}

Let:

(x_1,y_1)\implies (0,1)\\(x_2,y_2)\implies (1, 0)

The slope is equal to:

m=\frac{0-1}{1-0}=\frac{-1}{1}=-1

Therefore, the slope of this line is -1. In slope-intercept form y=mx+b, m represents slope, so one of the lines must have a term with -x in it, which eliminates answer choices A and D.

For the second line, do the same thing. The red line clearly passes through (0, -3) and (3, -2). Therefore, let:

(x_1,y_1)\implies (0,-3)\\(x_2,y_2)\implies (3, -2)

Using the slope formula:

m=\frac{-2-(-3)}{3-0}=\frac{1}{3}

Thus, the slope of the line is 1/3 and the other line must have a term with \frac{1}{3}x in it, eliminating answer choice C and leaving the answer \boxed{\text{B. }\frac{1}{3}x-3=-x+1}

*You can find the exact equation of each line by using the slope formula as shown and plugging in any point the line passes through into y=mx+b

7 0
3 years ago
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