3 years ago

Anthony has a cup full of nickels and dimes worth $6.80. There are 82 coins all together.

Mathematics

1 answer:

poizon [28]3 years ago

4 0

Answer:

Step-by-step explanation:

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During a flu epidemic, 35% of the school's students have the flu. Of those with the flu, 90% have high

frutty [35]

Answer: 0.8015

Step-by-step explanation:

Let F= event that a person has flu

H= event that person has a high temperature.

As per given,

P(F) =0.35

Then P(F')= 1- 0.35= 0.65 [Total probability= 1]

P(H | F) = 0.90

P(H|F') = 0.12

By Bayes theorem, we have

$P(F|H)=\dfrac{P(F)\timesP(H|F)}{P(F)\timesP(H|F)+P(F')\timesP(H|F')}\\\\=\dfrac{0.35\times0.90}{0.35\times0.90+0.65\times0.12}\\\\=\dfrac{0.315}{0.315+0.078}\approx0.8015$

Required probability = 0.8015

8 0

3 years ago

Someone please help me? Answe is NOT 4/7 , tried that already

pishuonlain [190]

Yes the answer is not 4/7 its 7/4

5 0

3 years ago

A fire hose sprays 2 gallons of water every 1.5 seconds.

liraira [26]

Answer:

Step-by-step explanation:

the lines weren't really clear so sorry if its a bit messy

8 0

3 years ago

about 0.4 of a biology class will be going on a field trip. Express the decimal as a fraction in simplest form.

Illusion [34]

I believe you could also write 0.4 as 4/10

4 0

3 years ago

Read 2 more answers

Common household electric current is called alternating current because the current alternates direction within the wires. The v

Rainbow [258]

Answer:

n = 18 cycles

Step-by-step explanation:

To know how many times does the current oscillates in the given time, you take into account that the number of oscillation can be calculated by using the following expression:

$n=ft$ (1)

f: frequency of the oscillation of the current

t: time = 0.30s

The frequency is the number of cycles per second, that is, f = 60 cycles/s

You replace the values of f and t in the equation (1):

$n=(60\frac{cycles}{s})(0.30s)=18\ cycles$

In 0.30s the current oscillates 18 times

5 0

3 years ago