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kumpel [21]
3 years ago
10

4x-3y=-1 -2x+5y=11 solve for x and y

Mathematics
2 answers:
shutvik [7]3 years ago
8 0
X=2
y=3
hope this helps
Rzqust [24]3 years ago
3 0
X=2
Y=3
You just have to do process of elimination. You have to try out the numbers.
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What is the domain of the function y=2VX-6?
lisabon 2012 [21]

Answer:

(-infinity, infinity)

Step-by-step explanation:

I assume it's y = 2x-6 which is a linear function. The line goes on forever.

5 0
3 years ago
East of Star, the railroad tracks intersect highway 23o as shown above. If 1=133 , find 2.
GrogVix [38]
Hi there.

These two angles sum up to be 180 degrees, so they are supplementary angles. Now, since these angles sum up to 180 degrees (to form a straight line), we only have to subtract 133 from 180 to find angle 2's measurement.

180 - 133 = 47

Angle 2's measurement is 47 degrees.

Voila! 

I hope this helps! Have a great day. :)
6 0
3 years ago
A local pizzeria offers 15 toppings for their pizzas and you can choose any 3 of them for one fixed price. How many different ty
Shtirlitz [24]

Answer:

  455 or 680, depending

Step-by-step explanation:

If we assume the three choices are different, then there are ...

  15C3 = 15·14·13/(3·2·1) = 35·13 = 455

ways to make the pizza.

___

If two or three of the topping choices can be the same, then there are an additional ...

  2(15C2) +15C1 = 2·105 +15 = 225

ways to make the pizza, for a total of ...

  455 + 225 = 680

different types of pizza.

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There is a factor of 2 attached to the number of choices of 2 toppings, because you can have double anchovies and tomato, or double tomato and anchovies, for example, when your choice of two toppings is anchovies and tomato.

_____

nCk = n!/(k!(n-k)!)

6 0
4 years ago
What is the length of XZ
Artemon [7]

Answer:

XZ=13\ units

Step-by-step explanation:

we know that

In the right triangle of the figure XYZ

Applying the Pythagorean Theorem

XZ^2=XY^2+YZ^2

substitute the given values

XZ^2=12^2+5^2

XZ^2=144+25

XZ^2=169

square root both sides

XZ=13\ units

6 0
3 years ago
Work out the value of<br> 5^8 x 5^-2 /<br> 5^4
IrinaK [193]

Answer:

the answer is 25

Step-by-step explanation:

7 0
3 years ago
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