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Morgarella [4.7K]
3 years ago
5

Zahara constructs 5 mirror frames in 30 minutes. At that rate, how many mirror frames can Zahara make in 9 hours

Mathematics
1 answer:
NARA [144]3 years ago
6 0

Answer:

90 mirrors

Step-by-step explanation:

If 5 mirrors=30 mins

then x=9 hrs

therefore 30÷60 to covert it to hours is equal to 0.5hr

5×9hrs÷0.5hr=90

therefore x=90

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artcher [175]

<span>Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.</span>

Two lines that intersect at right angles are perpendicular.

<span>A. The statement is not reversible.   </span>

<span>B. Yes; if two lines intersect at right angles, then they are perpendicular.   </span>

<span>C. Yes; if two lines are perpendicular, then they intersect at right angles.   </span>

<span>D. Yes; two lines intersect at right angles if (and only if) they are perpendicular.</span>



Your Answer would be (D)

<span>Yes; two lines intersect at right angles if (and only if) they are perpendicular.


</span><span>REF:    2-3 Biconditionals and Definitions</span>
6 0
3 years ago
Read 2 more answers
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lora16 [44]
T<span>he mean of a sampling distribution of a sample with proportion, p and sample size, n is given by \mu=np.

</span>T<span>he standard deviation of a sampling distribution of a sample with proportion, p and sample size, n is given by \sigma= \sqrt{np(1-p)}

</span>Given that t<span>he manufacturers of m&m's claim that 20% of the milk chocolate m&m candies are orange. The proportion is p = 0.2

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8 0
3 years ago
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7 0
4 years ago
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Step-by-step explanation:

7 0
4 years ago
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mixer [17]
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3 years ago
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