What is the answer to xy-xz if x=2, y=-9, and z=3

2 answers:

7 0

Answer:that would be 11 be you multiply x=2 so 2 times nine which would be 18 multiply x=2 times z=3 which is 6 subtract the 2 you get 18-6=11

Step-by-step explanation:

sergey [27]3 years ago

7 0

Answer:

Step-by-step explanation:

all you do is multiply 9 and 2 first because those are your x and y then you multiply 2 and 3 because those are your x and z, then you subtract your first and last answers which is 18 and 6, the you got your answer which is 12.

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What is the value of y?

Amiraneli [1.4K]

Answer:

$\boxed{D. \: 40\degree}$

Step-by-step explanation:

<em>Angle sum property of triangle states that the sum of interior angles of a triangle is 180°</em>

So,

$= > 2y \degree + (y + 10)\degree + 50\degree = 180\degree \\ \\ = > 2y\degree + y\degree + 10\degree + 50\degree = 180\degree \\ \\ = > 3y\degree + 60\degree = 180\degree \\ \\ = > 3y\degree = 180\degree - 60\degree \\ \\ = > 3y\degree = 120\degree \\ \\ = > y = \frac{120\degree}{3\degree} \\ \\ = > y = 40\degree$