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Amiraneli [1.4K]
3 years ago
5

What is the side length b in the triangle below? Please help!

Mathematics
2 answers:
pashok25 [27]3 years ago
6 0

Answer:

5

Step-by-step explanation:

This is a special right triangle: 5, 12, 13

Or you can solve using the Pythagorean Theorem (a^2+b^2=c^)

--> 13^2-12^2=b^2

-->169-144=b^2

-->25=b^2

b=5

Stolb23 [73]3 years ago
3 0

Answer:

solution

here

hypotenuse (h)=13

perpendicular(p)=12

now,

h^2=p^2+b^2

13^2=12^2+b^2

169=144+b^2

169-144=b^2

b^2=25

b=5

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olganol [36]

Answer:

x = 29

Step-by-step explanation:

All triangle angles add up to 180 so:

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3 years ago
Find the value of x that make it true
lesantik [10]

Answer:

Step-by-step explanation:

1). 10 = \frac{1+7x}{7+x}

   10(7 + x) = 1 + 7x

   70 + 10x = 7x + 1

   10x - 7x = 1 - 70

   3x = -69

   x = -23

2). 0.2 = \frac{6+2x}{12+x}

    0.2(12 + x) = 6 + 2x

    2.4 + 0.2x = 6 + 2x

    2.4 - 6 = 2x - 0.2x

    1.8x = -3.6

    x = -2

3). 0.8 = \frac{x}{x+0.5}

    0.8(x + 0.5) = x

    0.8x + 0.4 = x

    x - 0.8x = 0.4

    0.2x = 0.4

    x = 2

4). 3.5 = \frac{4+2x}{0.5-x}

    3.5(0.5 - x) = 4 + 2x

    1.75 - 3.5x = 4 + 2x

    -3.5x - 2x = 4 - 1.75

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6 0
2 years ago
PLEASE HELP ME I BEG YOU
mylen [45]
The slope intercept form for a line is y = mx + b.
                                                                 ↑      <span>↑

m is the slope of the line or how steep it is. b is where the line runs into the y axis at one point. x and y are the values you plug in when you have a specific point you want to use (x, y).

For the first picture, you can see that the line "intercepts" or collides with the y axis at 1. Thus we know the b value.

To find the slope, you just pick 2 points on the line and plug them into a little equation (try to memorize this equation, it helps to find slope):

m = (y</span>₂ - y₁)/(x₂ - x₁)

The two points we'll use are (1, 0) and (0, 1) since x goes through both of
those points.                          ↑  ↑           ↑  ↑
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m = (1 - 0)/(0 - 1)

m = 1 / -1

m = -1

This makes sense - since the slope is going downward, the slope is negative.

So the equation is:

y = -x + 1

____________________________________________________________

For the second problem, We  can see the line intercepts the y-axis at -5. That is our b value.

The the slope of this line is 0 since it is not going up or down, so that is our m value:

y = 0(x) - 5 = -5

The equation of the line is y = -5</span>
8 0
3 years ago
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