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alexdok [17]
3 years ago
7

Which undefined terms are needed to define perpendicular lines?

Mathematics
2 answers:
beks73 [17]3 years ago
8 0
<span>D. Coplanar, line Parallel lines are coplanar lines that do not intersect.</span>
SVETLANKA909090 [29]3 years ago
7 0
C is the answer lil flock
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2 years ago
Can someone help me with number 8 please? Thank you.
Naddik [55]
Answer: -4 \le x \le 5
Note: to write the domain in interval notation, you'd write [-4,5]
if you need the domain in set-builder notation, then you'd write \left\{x|x\in\mathbb{R}, \ -4\le x\le 5\right\}

------------------------------------------------------------------------------

Explanation:

The domain is the set of possible x input values. Look at the left most point (-4,-1). The x coordinate here is x = -4. This is the smallest x value allowed. The largest x value allowed is x = 5 for similar reasons, but on the other side of the graph.

So that's how I got -4 \le x \le 5 (x is between -4 and 5; inclusive of both endpoints)

Writing [-4,5] for interval notation tells us that we have an interval from -4 to 5 and we include both endpoints. The square brackets mean "include endpoint"

Writing \left\{x|x\in\mathbb{R}, \ -4\le x\le 5\right\} is the set-builder notation way of expressing the domain. The x\in\mathbb{R} portion means "x is a real number"

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3 years ago
Hamid bought 4.5 pounds of strawberries. The total cost of the strawberries was $8.10. How much did each pound of strawberries c
ankoles [38]

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$1.80 per pound

Step-by-step explanation:

divide the cost by the number of pounds of strawberries to get your answer

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Andrea was asked to find the value of –32 × 9 × 5/4 . How can Andrea make this problem easier to compute?
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divide the 32 by 4:

then the equation becomes:

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this is the same as 32 x 9 x 5/4 = 360

8 0
2 years ago
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