Which represents the solution set of the inequality 5x-9 less than or equal to 21

Mathematics

2 answers:

vredina [299]3 years ago

4 0

Answer:

Add 9 to both sides

5x is less than or equal to 30

Divide 5 on both sides

*the sign did not change because a negative number was not multiplied on both sides

x is less than or equal to 6

The last option would be your answer.

elena-14-01-66 [18.8K]3 years ago

3 0

Answer:

x ≤ 6

Step-by-step explanation:

5x - 9 ≤ 21

Step 1. Add 9 to both sides

5x ≤ 30

Step 2. Divide it all by 5

x ≤ 6

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The product of two consecutive positive even integers is 440. what are the integers

Natali [406]

1st integer: x
2nd integer: x+2

Multiply them: x(x+2)=440
X^2+2x-440=0
Use the quadratic formula
x=-22 or x=20
Since x must be a positive integer number, x=20.

Answer:
1st: 20.
2nd: 22

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Simplify square root of 2 over cube root of 2.

Fed [463]

Answer:

2 to the power of one sixth

Step-by-step explanation:

Assuming you don't already know this, any type of root can be expressed as an exponent. Generally speaking:

$\sqrt[n]{x} = {x}^{ \frac{1}{n} }$

So you can rewrite the given fraction as

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and then reduce as you normally would. That is, if the bases of the numerator and denominator are the same, then you can subtract the denominator's exponent from the numerator's exponent like so:

$\frac{ {2}^{ \frac{1}{2} } }{ {2}^{ \frac{1}{3} } } = {2}^{ \frac{1}{2} - \frac{1}{3} }$