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3 years ago

Jordan spent 5 hours over the weekend studying for 3 tests. He spent an equal amount of time studying for each test.

Mathematics

2 answers:

ikadub [295]3 years ago

5 0

Answer:

1.66 hours on each test

Step-by-step explanation:

Divide 5 into 3 which is 1.6666666666667, which you round to 1.6. And just to make sure its correct multiply 1.66 times 3 which is 4.98.

Pavel [41]3 years ago

5 0

Answer:

1 2/3 is the answer.

Step-by-step explanation:

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The probability that your call to a service line is answered in less than 30 seconds is 0.75. Assume that your calls are indepen

e-lub [12.9K]

Answer with Step-by-step explanation:

Since the given event is binary we can use Bernoulli's probability to sove the problem

Thus for an event 'E' with probability of success 'p' the probability that the event occurs 'r' times in 'n' trails is given by

$P(E)=\frac{n!}{(n-r)!\cdot r!}\cdot p^{r}\cdot (1-p)^{n-r}$

Part a)

For part a n = 11 , r =9, p = 0.75

Applying values we get

$P(E)=\frac{11!}{(11-9)!\cdot 9!}\cdot (0.75)^{9}\cdot (1-0.75)^{11-9}\\\\\therefore P(E)=0.2581$

Part b)

For part b n = 20 , r = 16 , p=0.75

Applying values we get

$P(E)=\frac{20!}{(20-16)!\cdot 16!}\cdot (0.75)^{16}\cdot (1-0.75)^{20-16}\\\\\therefore P(E)=0.1896$

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4 years ago

I’m stuck. What’s a reciprocal?

baherus [9]

Answer:

When flipping a fraction it is called the reciprocal

Step-by-step explanation:

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3 years ago

Pay Assessment

love history [14]

Step-by-step explanation:

(3760 + 4500 + 2450 + 3990) ÷ 4 = $3,675

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3 years ago

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Simply each of the following powers I. i^15=

9966 [12]

Answer:

-i

Step-by-step explanation:

i = √-1, i² = -1, i^4 = 1

i^15 = i^4 • i^4 • i^4 • i² • i

= 1 • 1 • 1 • -1 • i

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4 years ago

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Reduce the ratio to its lowest form 42 : 24

Lisa [10]

42 : 24 divided by 2 is 14 : 8

14 : 8 divided by 2 is 7 : 4

The lowest form is 7 : 4

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4 years ago