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Alona [7]
3 years ago
6

Use Cramer's Rule to solve each system. 5x – 3y = 8 -2x - y = 10

Mathematics
2 answers:
mezya [45]3 years ago
8 0

Answer: x = - 2

y = - 6

Step-by-step explanation:

A 2 × 2 matrix would be formed. The steps are shown in the attached photo.

zlopas [31]3 years ago
6 0

Answer:

-2, -6

Step-by-step explanation:

using cramer rule

5    -3    

-2   -1    

calculatiing the determinant = (5 x-1) - (-3x-2) = -5 -(6) = -5-6=-11

using cramer rule

to calculate x we change the coefficient of x with the answer (8,10)

8   -3

10   -1

we calculate determinant = (8x-1)-(-3x10) = -8-(-30) = -8+30 =22

to calculate x

22/-11= -2

to calculate y we change the coefficient of y with the answer (8,10)

5   8

-2   10

we calculate determinant = (5x10)-(8x-2) = 50 -(-16) = 50 +16=66

to calculate y

66/-11= -6

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Answer:

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Step-by-step explanation:

3 0
3 years ago
10 The collection of distinct vowel letters from the words PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS​
irina1246 [14]

The collection of distinct vowel letters from the words PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS​

The words' vowel letters are [A,,E,I,O,U].

A, E, I, O, U, Y, and, as we'll see, W are vowels, but let's go more precise now. They are symbols (letters) that represent a certain kind of spoken sound called a vowel. According to phoneticians, a vowel is a spoken sound that is made without severely limiting the airflow from the lungs.

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4 0
2 years ago
Evaluate the expression for the given value of the variable.<br><br><br>n=500<br>∛n/4+n/10=?
schepotkina [342]

Answer:

55

Step-by-step explanation:

To solve the expression, \sqrt[3]{\frac{n}{4}} + \frac{n}{10} substitute n = 500 and simplify according to order of operations.

\sqrt[3]{\frac{500}{4} } + \frac{500}{10}\\\\\sqrt[3]{125}+50\\ 5+50\\\\55

4 0
3 years ago
PLSSS HELP ILL GIVE BRAINLIEST!!!,!!!
Alexus [3.1K]

rewrite -1 1/3 as a decimal: -1.5


-2.1 - x = -1.5

Subtract -2.1 From both sides:

X = -1.5 - -2.1 = -1.5 + 2.1

X = 0.6


Answer: B. 0.6

6 0
2 years ago
Read 2 more answers
3y2 + 2xy + 1 + 3x + y + 2x2​
meriva

Answer:

Simplified, it would be 2x^2+2xy+3y^2+3x+y+1 so that's your answer.

8 0
3 years ago
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