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3 years ago

Given : 11x – 6y = –1; x = 8

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

7 0

Answer:

B. a. Given; b. Substitution Property; c. Subtraction Property of Equality; d. Division Property of Equality; e. Symmetric Property of Equality

Step-by-step explanation:

Given expression,

$11x - 6y = -1; x = 8$

By substituting x = 8,

$11(8) - 6y = -1$

$88 - 6y =-1$

By subtraction property of equality,

$-6y = -89$

Division property of equality,

$y = \frac{89}{6}$

By symmetric property of equality,

$\frac{89}{6} = y$

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For what values of x is x2 + 2x = 24 true?

tekilochka [14]

X² + 2x = 24

Organizing:
x² + 2x - 24 = 0
<<<< (Quadratic equation)

Delta:
Δ = b² - 4.a.c 
Δ = 2² - 4 * 1 * -24 
Δ = 4 - 4 * 1 * -24 
Δ = 100

Bhaskara:
x = (-b +- √Δ)/2*a

x' = (-2 + √100)/2*1
x' = 8 / 2
x' = 4

x'' = (-2 - √100)/2*1
x'' = -12 / 2
x'' = -6

Result: x = 4 or x = - 6 .

Good studies! :)

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The table below represents the displacement of a horse from its barn as a function of time:

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3 years ago

Describe how (2 cubed) (2 superscript negative 4) can be simplified. Multiply the bases and add the exponents. Then find the rec

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Add the exponents and keep the same base. Then reciprocal it and change the sign of the exponent. Then the value of the exponent expression is 0.5.

<h3>What is an exponent?</h3>

Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.

The exponent expression is 2³ × 2⁻⁴ can be simplified.

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More about the exponent link is given below.

brainly.com/question/5497425

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