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11111nata11111 [884]
3 years ago
8

Special triangles 45-45-90​

Mathematics
2 answers:
Studentka2010 [4]3 years ago
8 0

9514 1404 393

Answer:

  x = y = (√10)/2

Step-by-step explanation:

In an isosceles right triangle, the side lengths are equal, and they are equal to (√2)/2 times the hypotenuse length.

  x = y = (√5)(√2)/2

  x = y = (√10)/2

dimulka [17.4K]3 years ago
8 0

Answer:

x = y = \frac{1}{2} \sqrt{10}

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = \frac{\sqrt{2} }{2}

sin45° = \frac{opposite}{hypotenuse} = \frac{x}{\sqrt{5} } = \frac{\sqrt{2} }{2} ( cross- multiply )

2x = \sqrt{10} ( divide both sides by 2 )

x = \frac{1}{2} \sqrt{10}

Since the base angles are 45° then the triangle is isosceles with both legs congruent , thus

x = y = \frac{1}{2} \sqrt{10}

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Find the distance between the points (4, –2) and (0, 10).
madam [21]

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The answer is D.

Hope this helps.

r3t40

8 0
4 years ago
Which statement must be true?<br><br> a<br> b<br> c<br> d
lozanna [386]
ANSWER

\boxed {m \ne0}



EXPLANATION


The given function is

f(x) = mx + b


We need to find the inverse of this function,



Let

y= mx + b


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x = my + b


We solve for y now to obtain,


x - b = my


We divide through by m to get,

\frac{x - b}{m}  = y


Hence the inverse function is ,


{f}^{ - 1} (x) =  \frac{x - b}{m}


For this inverse to exist, the denominator must not be equal to zero,

Thus

m \ne0


The correct answer is A.
8 0
3 years ago
Read 2 more answers
Solve for m 1/C+1/m=1/z
9966 [12]
Answer:  " m = zC / (C − z) " .
___________________________________
Explanation:
_________________________
Given:  1/C + 1/m = 1/z ;  Solve for "m".

Subtract  "1/C" from each side of the equation:
____________________________________
1/C + 1/m − 1/C = 1/z − 1/C  ;

to get:  1/m = 1/z − 1/C ;
____________________________________
Now, multiply the ENTIRE EQUATION (both sides); by "(mzC"); to get ride of the fractions:
_________________

mzC {1/m = 1/z − 1/C} ;

to get:  zC = mC − mz ;

Factor out an "m" on the "right-hand side" of the equation:

zC = m(C − z) ;  Divide EACH side of the equation by "(C − z)" ; to isolate "m" on one side of the equation;

zC / (C − z) = m(C − z) / m ;  to get:   24/8 = 3  24

zC/ (C − z) = m ;   ↔   m = zC/ (C − z) .
___________________________________________________
4 0
3 years ago
George drives at 45 mi/h write an expression for the number of miles George travels in h hours
Fynjy0 [20]
Well with this amount of information I conclude m = 45h

The # of miles driven is determined by 45 × the amount of hours driven.

~~ I hope that helps you out!! Any more questions, please feel free to ask me and I will gladly help you out!

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3 0
3 years ago
Please help!<br><br> Please please please
scoray [572]

Answer:

For x ≥ 2, the graph will be a straight line parallel to x-axis and having equation y = - 3

And for x < 2 will be a straight line having equation y = x i.e. the graph makes 45° angle with the positive x-axis and passing through the origin.

Step-by-step explanation:

The piece wise function g(x) is given by  

g(x) = x if x < 2 and g(x) = - 3 if x ≥ 2.

Now, the graph has two parts, one for x ≥ 2 and another for x < 2.

Here, for x ≥ 2, the graph will be a straight line parallel to the x-axis and having equation y = - 3

Again, the graph for x < 2 will be a straight line having equation y = x i.e. the graph makes 45° angle with the positive x-axis and passing through the origin. (Answer)

6 0
3 years ago
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