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marysya [2.9K]
3 years ago
5

Solve for x 3 x − 8 ≤ 23 AND − 4 x + 26 ≥ 6 Please help thank you!!

Mathematics
1 answer:
MAXImum [283]3 years ago
8 0

To solve for x, you need to isolate/get the variable "x" by itself in the inequality:

3x - 8 ≤ 23       Add 8 on both sides

3x - 8 + 8 ≤ 23 + 8

3x ≤ 31         Divide 3 on both sides to get "x" by itself

\frac{3x}{3} \leq \frac{31}{3}

x\leq \frac{31}{3}     (x is any number less than or equal to 31/3)

-4x + 26 ≥ 6          Subtract 26 on both sides

-4x ≥ -20      Divide -4 on both sides [When you multiply/divide by a negative number to both sides of an inequality, you flip the sign </>]

\frac{-4x}{-4} \geq \frac{-20}{-4}   (two negative signs cancel each other out and become positive)

x ≤ 5     (x is any number less than or equal to 5)

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Perform the indicated operations(7n^2 - 6) - (6n^2 + 9) - (7n + 6)
DerKrebs [107]

Answer:

n²-7n-21

Explanation:

Given the expression:

\mleft(7n^2-6\mright)-(6n^2+9)-(7n+6)

First, open the brackets:

=7n^2-6-6n^2-9-7n-6

Next, bring the like terms together and simplify:

\begin{gathered} =7n^2-6n^2-7n-6-9-6 \\ =n^2-7n-21 \end{gathered}

5 0
1 year ago
What is 27% of 8383747
vekshin1
The answer should be 2263611.69, hopefully that helps.
3 0
4 years ago
2x -1 + x +1 = 180 <br> PLEASE SOLVE CORRECTLY
KiRa [710]

Answer:

x = 60

Step-by-step explanation:

Combine like terms on the left side of the equation: 2x + x = 3x; -1 + 1 = 0 so the total for the left side is just 3x. Now compare it to the full equation that you have left now, 3x = 180 now do 180/3 = 60

Hope this helps!

7 0
3 years ago
Write the equation of the line with slope = -3 and passes through (2,7)
andriy [413]

Answer:

Step-by-step explanation:

y - 7 = -3(x - 2)

y - 7 = -3x + 6

y = -3x + 13

6 0
3 years ago
25.
bulgar [2K]

Using the slope concept, it is found that the angle between the ladder and the floor will be of 33.69º.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

In this problem, we have that:

  • The angle is of 45º.
  • The vertical distance is the height of h.
  • The horizontal distance is of 3m.

Hence:

tan(45º) = h/3.

1 = h/3.

h = 3 m.

If the ladder slides 1 m down, the height will be of 2m, hence the angle will be given as follows:

\tan{\theta} = \frac{2}{3}

\theta = \arctan{\left(\frac{2}{3}\right)}

\theta = 33.69^\circ

More can be learned about the slope concept at brainly.com/question/18090623

#SPJ1

8 0
2 years ago
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