3 years ago

Jill had the following scores on quizzes.

Mathematics

1 answer:

Brut [27]3 years ago

6 0

3.08 is the answer because:
1(1)+3(2)+4(3)+4(4)+1(5)=40
40/13 is about 3.08.

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A person who is 6ft tall walks away from a streetlight. When the person is 15 feet away from the light, the tip of his shadow is

Citrus2011 [14]

We essentially have a ratio here:
$\frac{shadow}{actual}$

Since we know the ratio is going to stay constant at $\frac{5}{6}$ , we can use this to find the height of the lamp along with the information that the total distance from the lamp to the tip of his shadow is 20:
$\frac{5}{6}=\frac{20}{h}$
$5h=120$
$h=24$

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3 years ago

In a sample of 7500 new iphones, 18 were found to be defective. at this rate, how many defective iphones would be expected in a

viva [34]

In 7500 iPhones, 18 were found defective.
18 of 7500 is 0.24%
0.24% of iPhones were defective.

Using the information above:
In a sample of 60000 new iPhones, 144 would be found defective.
144 of 60000 is 0.24%

Answer: 144 defective iPhones would be expected in a sample of 60,000.

Hope this helps! Good luck. :-)

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3 years ago

zhannawk [14.2K]

Answer:

D (4,10)

Step-by-step explanation:

the answer is d

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3 years ago

Determine which of these relations are transitive. The variables x, y, x', y represent integers A.x~y if and only if x +y is pos

Veronika [31]

Answer: