Consider the two expressions which statement is true?

Mathematics

1 answer:

seraphim [82]3 years ago

6 0

The correct answer is: The two expressions are not equivalent because they do not always have the same value when any value is substituted for k.

Hope this helps!! :)

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12 < k + 11 The solution of the inequality is (pls answer fast)

Free_Kalibri [48]

Answer:

Solve for K by simplifying both sides of the inequality, then isolating the variable.

Inequality Form:

k > 1

Interval Notation:

(1, ∞)

Step-by-step explanation:

4 0

3 years ago

When the sum of \, 528 \, and three times a positive number is subtracted from the square of the number, the result is \, 120. F

aleksandr82 [10.1K]

Let $x$ be the unknown number. So, three times that number means $3x$ , and the square of the number is $x^2$

We have to sum 528 and three times the number, so we have $528+3x$

Then, we have to subtract this number from $x^2$ , so we have

$x^2-(3x+528)$

The result is 120, so the equation is

$x^2 - 3x - 528 = 120 \iff x^2 - 3x - 648 = 0$

This is a quadratic equation, i.e. an equation like $ax^2+bx+c=0$ . These equation can be solved - assuming they have a solution - with the following formula