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3 years ago

BLEASE HELP 15 POINTS!

Mathematics

2 answers:

meriva3 years ago

6 0

Answer:

-9y and 8xyis your answer

klemol [59]3 years ago

6 0

A. Is the best answer choice 97

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A survey asked students whether they have any siblings and pets. the survey data are shown in the relative frequency table.

IceJOKER [234]

Answer:

The likelihood that he or she has a pet given that a student does not have a sibling is:

Option: D ( 60%)

Step-by-step explanation:

Let A denote the event that a student does not have a sibling.

Let B denote the event that a students has a pet.

Then A∩B denotes the event that the student does not have a sibling but has a pet.

Let P denote the probability of an event.

Then, we are asked to find:

P(B|A)

We know that:

$P(B|A)=\dfrac{P(A\bigcap B)}{P(A)}$

Also from the table we have:

P(A)=0.25

and P(A∩B)=0.15

Hence,

$P(B|A)=\dfrac{0.15}{0.25}\\\\P(B|A)=\dfrac{3}{5}\\\\P(B|A)=0.6$

which in percentage is:

$0.6\times 100=60\%$

Hence, the likelihood is:

60%

5 0

3 years ago

Describe the transformations of : f(x)=x^2 to g(x)=3(x+5)^2+2 Help!!!

Shalnov [3]

Answer:

see explanation

Step-by-step explanation:

Given f(x) then f(x + a) is a horizontal translation of f(x)

• If a > 0 then a shift to the left of a units

• If a < 0 then a shift to the right of a units

Given f(x) then f(x) + c is a vertical translation of f(x)

• If c > 0 then a vertical shift up of c units

• If c < 0 then a vertical shift down of c units

Given

g(x) = (x + 5)² + 2

This represents a shift to the left of 5 units and a shift up of 2 units

5 0

4 years ago

Which measure of center is the most appropriate for this data set? 20, 6, 42, 13, 15, 10, 9, 12, 12

pantera1 [17]

The data are20, 6, 42, 13, 15, 10, 9, 12, 12You can arrange the numbers from least to greatest6, 9, 10, 12, 12, 13, 15, 20, 42
The mean of this data set is 15.44
The median is 12
The mode is 12

Since the data is normally distributed, the correct measure of center is the mean.

4 0

3 years ago

A line contains the points (3,1) and (-6,4). What is the equation for this line in slope-intercept form?

Alex73 [517]

Answer:

y = (-1/3)x + 2

Step-by-step explanation:

Equation of line in slope-intercept form is given by

y = mx +c

where m is the slope of line

c is y intercept

Slope of line having points (x1, y1) and (x2,y2) is given by (y2-y1)/(x2-x1)

_________________________________________________

let the equation of required line be y = mx +c

Since points given are (3,1) and (-6,4)

Then, its slope is

m = 4-1/-6-3 = 3/-9 = -1/3

Thus, slope of line is m = -1/3

lets use m = -1/3 in place of m in equation y = mx +c

y = (-1/3)x + c

Since points (3,1) and (-6,4) lie on y = (-1/3)x + c , it should satisfy the this equation.

hence lets plug 3 in place of x and 1 in place of y

1 = (-1/3)3 + c

=> 1 = -1 + c

=> c = 1 +1 = 2

Thus, intercept is 2.

Thus, Equation of line in slope-intercept form is y = (-1/3)x + 2.

5 0

4 years ago

Please help me with this ASAP.

Ber [7]

Look at the attached picture ⤴

Hope it will help u...

But I can't see the question no.26 clearly ....

so text the question in comment box.

6 0

3 years ago