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Deffense [45]
2 years ago
6

Is the question asking to see if x = 1, y=-2, and z=2 by solving the three equations?

Mathematics
1 answer:
dybincka [34]2 years ago
6 0

Answer:

2 × 1 +2 +2×2 =8

2+2+4=8

8=8

3×1 +3× -2 + 4×2 =5

3-6+8=5

5=5

1+2 × -2 +2 = -5

1-4+2= -5

-5 = -5

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Please help me asap!!!!!!!
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Answer:

  (b)  Symmetric property of congruence

Step-by-step explanation:

a) The transitive property says if a=b and b=c then a=c

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The property of congruence of interest here is the <em>symmetric property</em>.

5 0
2 years ago
The perimeter of a square is equal to four times the length of a side. Write the direct v variation equation that represents the
sveticcg [70]

Answer: y=4x

Step-by-step explanation:

A direct variation equation has the form:

y=kx

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4 0
3 years ago
Use the discriminant to describe the roots of each equation. Then select the best description. x2 - 5x + 7 = 0
miv72 [106K]
The general form of a quadratic (second degree) equation is 

a x^{2} +bx+c=0, where

D= b^{2}-4ac is called the Discriminant.


The Discriminant determines how many roots the equation will have as follows:

i)  if D>0, the equation has 2 roots.
ii) if D=0, the equation has 1 double root.
iii) if D<0, the equation has no roots.


In our equation, x^{2} -5x+7=0, a=1, b=-5, c=7

so the discriminant is D=(-5)^2-4*1*7=25-28<0


Thus the equation has no roots.


Remark: the equation has no roots in the Real numbers, but it has 2 roots in a larger set of numbers to be discussed in the future, the Complex numbers.
5 0
3 years ago
The tangent of an angle is not which of the following?
scZoUnD [109]

Answer:

Ratio

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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