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2 years ago

Choose the correct description of the graph of the compound inequality: x − 2 > −3 and 3x less than or equal to 12

1 answer:

7 0

From the first inequality x > 2 - 3 so x> -1
and from the second:- x <= 4
so the graph will be a number line with an open circle at x = -1 and a closed circle at x = 4 and the line is shaded in between.

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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

I need help solving these please help...

Ber [7]

5) y = 2x + 7
6) y = $\frac{5}{4}$ x - 5.5

5 0

2 years ago

Rename 600,000= ten thousands

lyudmila [28]

For this case we have the following number:

600,000

We can rewrite this number as the product of two numbers.

We have then, mathematically:

600,000 = 60 * 10,000

Then, rewriting in words we have:

600,000 = sixty - ten thousand s

Answer:

Rewriting 600,000 we have:

600,000 = sixty - ten thousands

4 0

2 years ago

Read 2 more answers

Q3) Explain the Error: When Rashed found the difference -11 - (-4), he got-

lina2011 [118]

He maybe accidently added both of thm .
But if we difference we get 7.
Because - and - =+
So
-11+4=7.

6 0

2 years ago

Convert 15/2 to a mixed fraction

stiks02 [169]

7 1/2 happy early thanksgiving :)

7 0

2 years ago