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3 years ago

Which point is a reflection of (1.5, -4.5) across the x-axis and the y-axis?

Mathematics

2 answers:

Ymorist [56]3 years ago

4 0

Answer:

C. point K

help it help you

Bezzdna [24]3 years ago

4 0

Point K (C) because you find the start point, reflect across the x-axis, and reflect it again across the y-axis

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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

3 years ago

Simplify: i) (a + b)(5a – 3b) + (a – 3b)(a – b) ii) (a – b) (a2 + b2 + ab) – (a + b) (a2 + b2 – ab) iii) (b2 – 49) (b + 7) + 343

marin [14]

Answer:

plz mark brainliest✌️✌️

8 0

3 years ago

How to solve the equation <br> 3/7 *49=x

rjkz [21]

Answer:

x=21

Step-by-step explanation:

well, geez - just do the math!

3/7 * 49 = 21

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3 years ago

Henry sells apples. The graph shows the relationship

Eddi Din [679]

Answer:

Henry does not make money if he does not sell any apples.

Step-by-step explanation:

Henry sells apples. The graph of the relationship between the price of apples and their total weight passes through the point (0,0) or origin.

Now, we have to clarify the meaning of the point (0,0) on the graph.

We choose from the options that Henry does not make money if he does not sell any apples.

Therefore, option D will be the correct one. (Answer)

8 0

3 years ago

Subtract – 2.2 + 3x – 9 from 8x2 + 10x – 10.

Ksju [112]

Answer:

=3x−11

2(4x2+5x−5)

Step-by-step explanation:

both subtracted: −8x2−7x−1

6 0

3 years ago