In this graph, the y-intercept of the line is ___.
The equation of the line is y=__ x __.

Answer:

I´m not an expert but I´ll look at it :3

Step-by-step explanation:

Answer do we just answer the question or we also have to do something else?

Step-by-step explanation:

Answer:

Step-by-step explanation:

0-2 is 30%

3-4  is 20%

5-6 is 20%

7-9 is 30%

so by his estimations a song bird would come up next at 20% of the time

or in 5 birds  100% percent of the time, but we have to look at his empirical data to see how accurate that is hmmm maybe a good time for a spread sheet or Mat Lab ???  hmm

13/20 is what I counted..   or   out of 100

that's 13*5 or 65%  

I'm not sure what form they want it in.. percent..  fraction hmm   hope that will help  :/

Answer:

width: 16, length: 20

Step-by-step explanation:

If the area is 320, then figure out multiples of it

20 and 16 are multiples of 320 and they are 4m apart

Answer:

Rosie is 10 years old

Step-by-step explanation:

A)

Rosie is x years old

Rosie's age (R) = x

R = x

Eva is 2 years older

Eva's age (E) = x + 2

E = x + 2

Jack is twice Rosie’s age

Jack's age (J) = 2x

J = 2x

B)

R + E + J = 42

x + (x + 2) + (2x) = 42

x + x + 2 + 2x = 42

4x + 2 = 42

4x = 42 - 2

4x = 40

\(x = \frac{40}{4} \\\\x = 10\)

Rosie is 10 years old

Answer:

Page 1

1)

a) - 5x^4+3

Degree: 4

Number of terms: 2

b) 5x² + 30x+25

Degree: 2

Number of Terms: 3

c) 16r^4p

Degree: 4

Number of Terms: 1

d) 9m²n + 12mn +4m -6n+19

Degree:2

Number of Terms:5

Note:

Degree: the highest exponent of the variable x)

Number of terms: It is either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or - signs, or sometimes by divide

Page 2:

Add or subtract the following polynomials.

a) (3p^3+6p^2+14p)+(-5p^3-2p+8p^2

opening bracket

3p^3+6p^2+14p+(-5p^3-2p+8p^2)

3p^3+6p^2+14p-5p^3-2p+8p^2

Combining like terms

-2p^3 +14p^2+12p

b) (7y^3-5y)-(5y-7y^3)

Opening bracket

7y^3-5y-5y+7y^3

Combining like terms

14y^3-10y

c) (6z^4+15-7z^3)+(-2z^4+8z^3-5z^5)

Opening bracket

6z^4+15-7z^3-2z^4+8z^3-5z^5

-5z^5 +4z^4+1z^3+15

d) (-3n²-14n+1)-(-7n+2-6n²)

Opening bracket

-3n²-14n+1+7n-2+6n²

3n²-7n-1

e) (7b^3-14-8b^4) − (−3b^4+7b³ +4)

Opening bracket

7b^3-14-8b^4+3b^4-7b³-4

-5b^4-18

f) (-3n^2-4n+2n⁴) + (3n^2+ 19n-7n^4)

Opening bracket

-3n^2-4n+2n⁴+3n^2+ 19n-7n^4

-5n⁴+15n

Answer:

Page 1

1)

a) - 5x^4+3

Degree: 4

Number of terms: 2

b) 5x² + 30x+25

Degree: 2

Number of Terms: 3

c) 16r^4p

Degree: 4

Number of Terms: 1

d) 9m²n + 12mn +4m -6n+19

Degree:2

Number of Terms:5

Note:

Degree: the highest exponent of the variable x)

Number of terms: It is either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or - signs, or sometimes by divide

Page 2:

Add or subtract the following polynomials.

a) (3p^3+6p^2+14p)+(-5p^3-2p+8p^2

opening bracket

3p^3+6p^2+14p+(-5p^3-2p+8p^2)

3p^3+6p^2+14p-5p^3-2p+8p^2

Combining like terms

-2p^3 +14p^2+12p

b) (7y^3-5y)-(5y-7y^3)

Opening bracket

7y^3-5y-5y+7y^3

Combining like terms

14y^3-10y

c) (6z^4+15-7z^3)+(-2z^4+8z^3-5z^5)

Opening bracket

6z^4+15-7z^3-2z^4+8z^3-5z^5

-5z^5 +4z^4+1z^3+15

d) (-3n²-14n+1)-(-7n+2-6n²)

Opening bracket

-3n²-14n+1+7n-2+6n²

3n²-7n-1

e) (7b^3-14-8b^4) − (−3b^4+7b³ +4)

Opening bracket

7b^3-14-8b^4+3b^4-7b³-4

-5b^4-18

f) (-3n^2-4n+2n⁴) + (3n^2+ 19n-7n^4)

Opening bracket

-3n^2-4n+2n⁴+3n^2+ 19n-7n^4

-5n⁴+15n

Step-by-step explanation:

Answer:

It's so dark! There are some words I can't see.

The correct term for a sample obtained in such a way that every element in the population has an equal chance of being selected is a "random sample."

In a random sample, each member of the population has an equal probability of being chosen, providing a representative subset of the population. This sampling method helps to reduce bias and ensures that the sample is more likely to accurately reflect the characteristics of the entire population.

Random sampling is a fundamental principle in statistics and research, allowing for generalizations and inferences to be made about the population based on the characteristics observed in the sample. It is widely used in various fields, such as social sciences, market research, and opinion polls, to draw meaningful conclusions about a larger population.

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Answer:

Fill going downwards

Step-by-step explanation:

1

2

2

3

1

The correct relative frequency and the conclusion based on the table is B. The relative frequency for traveling out of state for longer than a week is 48%. This could be high because people want to spend more time if they have traveled farther.

Given a table.

Relative frequency of a data set is defined as the ratio of the number of outcomes that occured by the total number of trials.

Total number of surveys = 100

Relative frequency for traveling in state for longer than a week is,

10/100 = 10%

Relative frequency for traveling out of state for longer than a week is,

48/100 = 48%

This must be true since people will be more likely to spend more time if they travelled farther.

Hence the correct option is B.

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The (x, y) coordinates of point P are approximately (31.19, 20.67).

It is stated that the point P lies at a distance of r = 37 units from the origin and forms an angle of θ = 35° with respect to the x-axis, we can use trigonometry to find the x and y coordinates.

Using the trigonometric definitions, we have,

x = r * cos(θ) = 37 * cos(35°) ≈ 31.19

y = r * sin(θ) = 37 * sin(35°) ≈ 20.67

Therefore, the approximate (x, y) coordinates of point P are (31.19, 20.67). The coordinates (31.19, 20.67) represent the position of point P in the Cartesian coordinate system based on the given distance and angle measurements.

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Complete question - A point P lies in a plane and is a distance of r = 37 units from the origin of a Cartesian coordinate system. If the line joining the point and the origin makes an angle of = 35° degrees with respect to the x-axis, what are the (x, y) coordinates of the point P?

Answer:

d = distance

r = rate (speed)

t = time

Step-by-step explanation:

Answer:

Rate

Step-by-step explanation:

D istance= r ate + t ime

Yw :)

The missing points are:

Because two points determine a line, you can draw altitude​ BD perpendicular to AC with height h.

By the definition of a sine ratio, sin(C) = h/a, which can be rearranged into​ a·sin(C) = h​.

The area of △ABC is A=1/2bh.

The substitution property of equality can be used to write A=1/2b(a sinC), which becomes A=1/2ab(sinC) by the commutative property of multiplication.

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5 flight attendants are required.

The number of flight attendants required on an aircraft is determined by regulatory agencies such as the Federal Aviation Administration (FAA) in the United States and the European Aviation Safety Agency (EASA) in Europe.

The number of flight attendants depends on several factors, including the type of aircraft, the number of passenger seats, the length of the flight, and the number of passenger exits.

The number of flight attendants required can be determined by the following formula:

The minimum number of flight attendants = (N / 50) + 1 where N is the number of passenger seats.

So, for an aircraft with 275 seats and 249 passengers:

(249 / 50) + 1

= 5 flight attendants are required.

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Answer:

7

Step-by-step explanation:

Answer:

it is true

Step-by-step explanation:

Answer:12 x w = 48

Step-by-step explanation:

the width is 4

Answer:

w=4

Step-by-step explanation:

length is 12

area is 48

:) don't know how to explain so i'll just put the formula thing

 w=a/1=48/12=4  also /=fraction

Answer:

x=u/k

Step-by-step explanation:

To get x, you would divide by k. Because its x times k. The oppisite is division. This gets you u/k=x

x is equal to u divided by k.

x=u/k

The limit of (2x-1)(3-x)/(x-1)(x+3) as x approaches infinity is 0.

To find the limit of the function (2x-1)(3-x)/(x-1)(x+3) as x approaches infinity, we will divide both the numerator and denominator through the highest power of x. In this case, the highest power of x is x², so we can divide both the numerator & the denominator through x²:

\([(2x-1)/(x^2)] * [(3-x)/((x-1)/(x^2)(x+3))]\)

Now, as x approaches infinity, every of the fractions within the expression procedures zero except for (2x-1)/(x²). This fraction techniques 0 as x procedures infinity because the denominator grows quicker than the numerator. therefore, the limit of the expression as x strategies infinity is:

0 * 0 = 0

Consequently, When x gets closer to infinity, the limit of (2x-1)(3-x)/(x-1)(x+3) is 0.

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ANSWER = 8460x (5y-23)(2x+13)

                                 60

Answer is square root (82).

The distance between the points (4, -2) and (5, 7) can be found by using the distance formula.

The distance formula can be used to calculate the distance between any two points in a coordinate plane.                

The distance formula is the best way to solve this problem.

The distance formula is given by: `d = sqrt((x2 - x1)^2 + (y2 - y1)^2) `Where (x1, y1) and (x2, y2) are the coordinates of the two points and d is the distance between the two points.                                                                                                      So, substituting the given values,we have:(x1, y1) = (4, -2) and (x2, y2) = (5, 7)d = sqrt((5 - 4)^2 + (7 - (-2))^2)d = sqrt((1)^2 + (9)^2)d = sqrt(1 + 81)d = sqrt(82)                              

Therefore, the distance between the two points (4, -2) and (5, 7) is sqrt(82), which is the simplest radical form for an irrational answer.

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The distance between the two points is `sqrt(82)`.

Points are (4, −2) and (5, 7).

We have to find the distance between two points.

Distance formula is given by `sqrt((x2-x1)^2+(y2-y1)^2)`

Here, `x1=4`, `y1=-2`, `x2=5` and `y2=7`.

Now, putting these values in the distance formula, we get: sqrt((5-4)^2+(7-(-2))^2)sqrt((1)^2 (7+2)^2)sqrt(1+81)sqrt(82)

Therefore, the distance between the two points is `sqrt(82)` which is in simplest radical form as it is an irrational number.

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There are 15 cards with numbers from 1 to 15 written on them. Event A is choosing a multiple of 5, which includes the numbers 5 and 10. Event B is choosing an even number, which includes the numbers 2, 4, 6, 8, 10, 12, and 14.

First, we need to determine the number of cards that correspond to each event:

Event A: Multiples of 5 in the range 1-15 are 5 and 10. So, there are 2 cards that correspond to event A.

Event B: Even numbers in the range 1-15 are 2, 4, 6, 8, 10, 12, and 14. So, there are 7 cards that correspond to event B.

To find the probability of choosing a multiple of 5 or an even number, we need to add the probabilities of the two events and subtract the probability of their intersection:

P(A or B) = P(A) + P(B) - P(A and B)

The probability of event A is 2/15, the probability of event B is 7/15. To find the probability of their intersection, we need to determine how many cards satisfy both events. The only card that satisfies both events is 10. Therefore, P(A and B) = 1/15.

Plugging these values into the formula, we get:

P(A or B) = 2/15 + 7/15 - 1/15 = 8/15

Therefore, the probability of choosing a multiple of 5 or an even number is 8/15.

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Answer:

15pi

Step-by-step explanation:

The equation for circumference is C=2πr

In the question you're given the diameter so we need to take 15 and divide by 2

giving us r=7.5

then 7.5*2=15

giving us 15pi

The numerical value of the two-sample t-statistic for this test is 0.414 . So, the correct option is A).

To determine if there is a significant difference in the mean bacterial concentration in air between carpeted and uncarpeted rooms, the two-sample t-test can be used.

First, we need to calculate the sample means and standard deviations for each group. The sample mean for the carpeted rooms is 22.0 with a standard deviation of 184, while the sample mean for the uncarpeted rooms is 16.9 with a standard deviation of 175.

Next, we can calculate the t-statistic using the formula

t = (x1 - x2) / (s1^2/n1 + s2^2/n2)^0.5

where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, and n1 and n2 are the sample sizes.

Plugging in the values, we get

t = (22.0 - 16.9) / ((184^2/7 + 175^2/7)^0.5) = 0.414

Comparing the calculated t-value with the critical t-value for a two-tailed test with 12 degrees of freedom at a 0.05 significance level, we find that the critical t-value is 2.179. Since the calculated t-value is less than the critical t-value, we fail to reject the null hypothesis and conclude that there is no significant difference in the mean bacterial concentration in air between carpeted and uncarpeted rooms.

So, the correct answer is A).

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We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

An array has a subscript zero for its first element. When using built-in array types, array bounds are not checked.

soccer and hockey is the correct answer because in both of these games there is a possibility of a match to be tied if both teams score equal no of goals in the given time. Both games have two halves of play,  and the team scoring more goal in the given time wins but sometimes both teams score an equal number of goals then the match is  tied

Class Frequency

Football 4

Basketball 8

Soccer 7

Baseball 4

Hockey 7

Total frequency = 4 + 8 + 7 + 4 + 7 = 30

Let's find the relative frequency.

To find the relative frequency, we have:

Relative frequency = frequency/total frequency

We have:

Football = \(\frac{4}{30}\) = 0.133

Basketball = 8/30 = 0.267

Soccer = 7/30 = 0.233

Baseball = 4/30 = 0.133

Hockey = 7/30 = 0.233

Therefore,

We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

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We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

An array has a subscript zero for its first element. When using built-in array types, array bounds are not checked.

soccer and hockey is the correct answer because in both of these games there is a possibility of a match to be tied if both teams score equal no of goals in the given time. Both games have two halves of play,  and the team scoring more goal in the given time wins but sometimes both teams score an equal number of goals then the match is  tied

Class Frequency

Football 4

Basketball 8

Soccer 7

Baseball 4

Hockey 7

Total frequency = 4 + 8 + 7 + 4 + 7 = 30

Let's find the relative frequency.

To find the relative frequency, we have:

Relative frequency = frequency/total frequency

We have:

Football =4/30  = 0.133

Basketball = 8/30 = 0.267

Soccer = 7/30 = 0.233

Baseball = 4/30 = 0.133

Hockey = 7/30 = 0.233

Therefore,

We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

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The discriminant for the equation 3x^2 = 7x + 5 is 109. There are two different real-number solutions for this quadratic equation.

The discriminant of the quadratic equation ax^2 + bx + c = 0 is given by the expression b^2 - 4ac.

For the equation 3x^2 = 7x + 5, let's determine the discriminant:

a = 3, b = -7, c = -5

The discriminant is calculated as follows:

b^2 - 4ac = (-7)^2 - 4(3)(-5)

          = 49 + 60

          = 109

Now, let's analyze the discriminant to determine the nature of the solutions:

Since the discriminant (109) is a positive number, there are two different real-number solutions for the quadratic equation 3x^2 = 7x + 5.

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The method used to determine the probability of a family having six girls, based on a survey of 1000 families with six children, is the classical method.

The classical method involves calculating probabilities based on the assumption of equally likely outcomes and known sample spaces. In this case, the sample space consists of all possible combinations of genders for six children, and the probability of a family having six girls is calculated as the ratio of the favorable outcome (one specific combination) to the total number of outcomes (all possible combinations).

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Answer:

I can't find that file. please give it again.