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4 years ago

Help me;( i dont understand

Mathematics

1 answer:

PilotLPTM [1.2K]4 years ago

7 0

Given:

Line l and line m are parallel.

Co-interior angles are (12x - 8)° and 104°.

To find:

The value of x.

Solution:

Sum of co-interior angles = 180°

12x° - 8° + 104° = 180°

12x° + 96° = 180°

Subtract 96° from both sides.

12x° + 96° - 96° = 180° - 96°

12x° = 184°

Divide by 12° on both sides.

x° = 7°

x = 7

The value of x is 7.

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3 years ago

−7x−50≤−1 AND−6x+70>−2

fgiga [73]

Answer:

$-7\geq x$ and $[-7,12)$ in interval notation.

Step-by-step explanation:

We have been given a compound inequality $-7x-50\leq -1\text{ and }-6x+70>-2$ . We are supposed to find the solution of our given inequality.

First of all, we will solve both inequalities separately, then we will combine both solution merging overlapping intervals.

$-7x-50\leq -1$

$-7x-50+50\leq -1+50$

$-7x\leq 49$

Dividing by negative number, flip the inequality sign:

$\frac{-7x}{-7}\geq \frac{49}{-7}$

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$-6x+70>-2$

$-6x+70-70>-2-70$

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Dividing by negative number, flip the inequality sign:

$\frac{-6x}{-6}$

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Upon merging both intervals, we will get:

$-7\geq x$

Therefore, the solution for our given inequality would be $-7\geq x$ and $[-7,12)$ in interval notation.

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3 years ago

Help? Is this true or false? Ill give brainliest ^_^

Sphinxa [80]

Answer:

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3 years ago

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