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skelet666 [1.2K]
3 years ago
15

KNOWLEDGE CHECK: ALEKS

Mathematics
1 answer:
Ainat [17]3 years ago
3 0

Answer:

Step-by-step explanation:

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When using Cramer's Rule to solve a system of equations, if the determinant of the coefficient matrix equals zero and neither nu
o-na [289]
The answer would be A. When using Cramer's Rule to solve a system of equations, if the determinant of the coefficient matrix equals zero and neither numerator determinant is zero, then the system has infinite solutions. It would be hard finding this answer when we use the Cramer's Rule so instead we use the Gauss Elimination. Considering the equations:

x + y = 3 and <span>2x + 2y = 6
Determinant of the equations are </span>
<span>| 1 1 | </span>
<span>| 2 2 | = 0
</span>
the numerator determinants would be
<span>| 3 1 | . .| 1 3 | </span>
<span>| 6 2 | = | 2 6 | = 0.
Executing Gauss Elimination, any two numbers, whose sum is 3, would satisfy the given system. F</span>or instance (3, 0), <span>(2, 1) and (4, -1). Therefore, it would have infinitely many solutions. </span>
3 0
2 years ago
Find two consecutive even integers whose product is 120
ipn [44]

Answer:

10 and 12 are two even integers whose product =120

Step-by-step explanation:

10 and 12 are two even integers whose product =120

10\times 12=120

8 0
3 years ago
What is the MAD of the numbers (Round to the nearest tenth.)<br><br> 9,7,6,8,6,6
uranmaximum [27]

Answer:

The MAD is 1

Step-by-step explanation:

See attached picture

6 0
3 years ago
Which expression gives the prime<br> factorization of 80?<br> I need help please..
Alja [10]
The correct answer is actually choice D.
8 0
3 years ago
Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inc
ki77a [65]

Answer:

The answer is 8 * 8 is the measurement of the cross section.

Again you give no options or integrity to your question with suggesting 3 options should be SELECTED that are not shown.

Step-by-step explanation:

You telling me im wrong you need to shape your question to make the difference in finding answers.

5 0
2 years ago
Read 2 more answers
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