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slava [35]
3 years ago
15

When using Cramer's Rule to solve a system of equations, if the determinant of the coefficient matrix equals zero and at least o

ne numerator determinant is zero, then the system _____________________.
A. is consistent
B. is dependent
C. is inconsistent
D. has no solution
Mathematics
1 answer:
Ainat [17]3 years ago
7 0

Answer:

  B. is dependent

Step-by-step explanation:

The denominator determinant will be zero when the coefficients of the variables are dependent. One of the numerator coefficients will be zero when the coefficients involved are dependent. Hence using Cramer's Rule will result in the ratio 0/0 when the system is dependent.

___

The ratio will be 1/0 if the system is inconsistent (has no solution).

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3 years ago
A scientist performs an experiment to produce a compound by adding various amounts of a catalyst to a chemical reaction. Her dat
zhannawk [14.2K]

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Step-by-step explanation:

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<u>Given:</u>

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2 years ago
A, B, and C are points of tangency. CQ = 5, PQ = 10, and PR = 14. What is the perimeter
igomit [66]

*see attachment for diagram

Answer:

Perimeter = 38

Step-by-step explanation:

Recall: when two tangents are drawn to meet at a point outside a circle, the segments of the two tangents are congruent.

Given,

CQ = 5

PQ = 10

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Perimeter of ∆PQR = RC + CQ + QB + BP + PA + AR

CQ = QB = 5 (tangents drawn from an external point)

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3 years ago
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4 years ago
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