All categories

2 years ago

Please help with this question. Quick! 20 points!

Mathematics

1 answer:

Mnenie [13.5K]2 years ago

7 0

Answer:

Step-by-step explanation:

a is not proportional

b is not proportional

sorry if its wrong this isn't my strong suit

You might be interested in

Helppppppppppppppppppppppppppppp

iren [92.7K]

To start, the first thing you need to know is that when you add decimals, you must line the decimal up, meaning, if you were adding 2.7+4.1, you have to make sure 2 is lined up with 4, and 7 is lined up with 1 so that the decimals align. Then, you add straight down from right to left and you get 6.8 as your answer.

3 0

3 years ago

Read 2 more answers

25% of American households have only dogs (one or more dogs) 15% of American households have only cats (one or more cats) 10% of

sergeinik [125]

Answer:

a) P=0.2503

b) P=0.2759

c) P=0.3874

d) P=0.2051

Step-by-step explanation:

We have this information:

25% of American households have only dogs (one or more dogs)

15% of American households have only cats (one or more cats)

10% of American households have dogs and cats (one or more of each)

50% of American households do not have any dogs or cats.

The sample is n=10

a) Probability that exactly 3 have only dogs (p=0.25)

$P(x=3)=\binom{10}{3}0.25^30.75^7=120*0.01563*0.13348=0.25028$

b) Probability that exactly 2 has only cats (p=0.15)

$P(x=2)=\binom{10}{2}0.15^20.85^8=45*0.0225*0.27249=0.2759$

c) Probability that exactly 1 has cats and dogs (p=0.1)

$P(x=1)=\binom{10}{1}0.10^10.90^0=10*0.1*0.38742=0.38742$

d) Probability that exactly 4 has neither cats or dogs (p=0.5)

$P(x=4)=\binom{10}{4}0.50^40.50^6=210*0.0625*0.01563=0.20508$

8 0

2 years ago

A shoe factory makes the same number of shoes each hour.By 1:00 pm, the factory made 240 shoesBy 5:00 pm, the factory made 432 s

Anton [14]

432-240=192
192 is the amount of shoes produced in 4 hours
194/4=48
48 is the amount of shoes products per hour

8 0

2 years ago

What is the volume of the square pyramid with bad edges 12cm and height 12cm?

spayn [35]

The volume of a pyramid is found by multiplying the length, width and height together then dividing by 3.

length x width x height = 12 x 12 x 12 = 1728

volume = 1728 / 3 = 576 cubic cm

8 0

3 years ago

HELP ASAP I"M JUST TRYING TO GET GOOD GRADES NO LIES EITHER!!

attashe74 [19]

Answer:

C and D

Step-by-step explanation:

If you subtract 2.5 from 16.2 you would get 13.7 same for 19.25.It would then equal 16.75

Therefore C and D are correct :)

6 0

3 years ago