Answer:
x= -3
y= 1
z= 4
Step-by-step explanation:
Please see the attached pictures for the full solution.
*I evaluated the determinants using Sarrus' rule (see last picture):
∆= aei +bfg +cdh -gec -hfa -idb
*The symbol '∆' (delta) is usually used to denote a determinant.
Answer:
d x / d y = -x2 - 2 y + 8 / 2 x y + 6
Step-by-step explanation:
Answer:
Correct cost for the cell phone monthly plan = 54.2$
Explanation:
Price for monthly plan = 58.95$
Discount = 4.75 $
New cost found out by Sam = 11.45$
Discount considered by Sam = 58.95 - 11.45 = 47.5$
So, Instead of considering discount amount of 4.75$ Sam accidentally considered 47.5$, so he got 11.45$ as new cost for the cell phone plan.
Actual cost = 58.95 - 4.75 = 54.2$
Correct cost for the cell phone monthly plan = 54.2$
Answer:
Question 11 would be D) 5x - 4y and Question 12 would be A) 7x + 6
Adding to the solutions and points gotten, we can further say that: Opposite angles of the parallelogram are congruent, by the theorem of Side Angle side (SAS) (i.e angle AEB = CED )
<h3>Meaning of Congruence</h3>
Congruence can be defined as a term used to depict a state of two object being equal, in harmony, and in agreement.
The congruence of a shaped is verified by some laws which they both must satisfy.
In conclusion, the triangle is congruent with the fact stated in the question and the additional fact added above.
Learn more about congruence: brainly.com/question/3168048
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