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maks197457 [2]
3 years ago
6

How does labeling the diagram help us show that we can use right triangle congruency (SAS in this case)?

Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

Step-by-step explanation:

S A S congruence rule: Two triangles are congruent if two sides and the included angle of one triangle are equal to the two sides and the included angle of other triangle.

If two triangles are congruent by SAS, and the angle is 90, then by CPCT{corresponding part of congruent triangle)  the hypotenuse of the two triangles will be congruent.

Now, as hypotenuse  and  one leg are congruent in both triangles, we can apply RHS congruent

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Zara filled up her car with 15 gallons of gas. If Zara paid $33.00, what was the price per gallon of gas?
djyliett [7]

Answer:

$2.20 per gallon.

Step-by-step explanation:

That is 33/15 = $2.20 per gallon.

5 0
3 years ago
Read 2 more answers
7z= 21<br> 2x + 3y – z =-2 x=_y=_2=<br> x + 2y + 3z = 9
lbvjy [14]

Answer:

1)  7(3) = 21

Step-by-step explanation:

7 0
3 years ago
Find the hypotenuse of each isosceles right triangle when the legs are of the given measure. Given = 6"
Svetllana [295]
From this detail that is a right isosceles triangle result that the angles from the base has measure of 45 degrees 
- there is given again that the length of legs is 6"
- than we drawn the height from the right angle on hypotenuse and use sin45 we get 
but we need to know that 6" = 6*2,6 = 15,6 cm = 0,156 m
cos 45° = (half of hypotenuse)/6"

sqrt2 /2 = (half of hyp) /6"

half of hyp. = 6"sqrt2 /2 = 3sqrt2" so than the length of hypotenuse will be 

equal 2*3sqrt2 = (6sqrt2)"
6 0
3 years ago
What expression can represent 70% of X
agasfer [191]

Answer:

3(x/4) - 1/2 (x/10) or you can just do 0.7x but I don't think that counts as an expression, so just put 3(x/4) - 1/2 (x/10).

Step-by-step explanation:

6 0
3 years ago
Y = -2x + 1 4x + y = 9
Vladimir [108]

9514 1404 393

Answer:

  (4, -7)

Step-by-step explanation:

Maybe you want the solution to this system of equations.

About the easiest way to obtain it is to use a graphing calculator.

   (x, y) = (4, -7)

_____

<em>Additional comment</em>

Since one of the equations gives an expression for y, it is a simple matter to substitute that for y in the other equation.

  4x +(-2x +1) = 9

  2x = 8 . . . . . . . . . . subtract 1 and simplify

  x = 4

  y = -2(4) +1 = -7 . . . use the first equation to find y

5 0
3 years ago
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