100 points
The graph shows a system of equations:

Draw a line labeled y equals minus x plus 5 by joining the ordered pairs 0, 5 and 5, 0. Draw a line labeled y equals x minus 1 by joining the ordered pairs negative 1, negative 2 and 5, 4.

What is the solution to the system of equations?

A:(−3, 2)
B: (3, −2)
C: (3, 2)
D; (−3, −2)

Answer:

c. 20x+35

Step-by-step explanation:

5*4x=20x

5*8-5=40-5=35

so, 20x+35

The results tell us that jersey numbers on a football team vary much more than expected, as evidenced by the large range and standard deviation. The sample variance is also relatively high, indicating that there is a fair amount of variability among the jersey numbers in the sample. These statistics are meaningful and can provide insight into the distribution of jersey numbers on the team.

To find the range, we need to subtract the smallest number from the largest number in the sample. So, the range is:

94 - 15 = 79

To find the sample variance and standard deviation, we first need to find the mean of the sample. We can do this by adding up all the numbers and dividing by the total number of players:

(33 + 74 + 70 + 65 + 56 + 47 + 39 + 72 + 57 + 94 + 15) / 11 = 54.18

Next, we need to find the difference between each number and the mean, square them, and add them up. This gives us the sum of squares:

[(33 - 54.18)^2 + (74 - 54.18)^2 + (70 - 54.18)^2 + (65 - 54.18)^2 + (56 - 54.18)^2 + (47 - 54.18)^2 + (39 - 54.18)^2 + (72 - 54.18)^2 + (57 - 54.18)^2 + (94 - 54.18)^2 + (15 - 54.18)^2] = 15864.4

The sample variance is then calculated by dividing the sum of squares by the total number of players minus one:

15864.4 / 10 = 1586.44

Finally, we can calculate the sample standard deviation by taking the square root of the variance:

√1586.44 ≈ 39.83

The results tell us that jersey numbers on a football team vary much more than expected, as evidenced by the large range and standard deviation. The sample variance is also relatively high, indicating that there is a fair amount of variability among the jersey numbers in the sample. These statistics are meaningful and can provide insight into the distribution of jersey numbers on the team.

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Answer:

24-5:x2

Step-by-step explanation:

im not sure

mark brainliest if it helps

The most the salon would be willing to pay that groomer is $25×4 = $100.

The unitary method is a technique that determines the worth of a single unit from value of multiple units, as well as the quality of multiple units from value of a single unit.

Some key features regarding the unitary method are-

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When two tables have a one-to-many relationship, you typically need to add a foreign key to the table on the "many" side to link the records to the corresponding record in the "one" table.

In a one-to-many relationship, the table on the "one" side is usually the primary key table, and the table on the "many" side is usually the foreign key table. The foreign key is used to link the records in the "many" table to the corresponding record in the "one" table. This is done by adding a column to the "many" table that contains the primary key value from the "one" table.

When designing a database, it is important to establish relationships between tables to ensure data integrity and avoid redundant data. In a one-to-many relationship, one record in the primary key table can be associated with many records in the foreign key table. To establish a one-to-many relationship, you need to create a primary key in the "one" table and a foreign key in the "many" table. The foreign key is a column that contains the primary key value from the "one" table. For example, if you have a "customers" table and an "orders" table, the "customers" table would be the primary key table and the "orders" table would be the foreign key table. Each record in the "orders" table would have a foreign key column that contains the customer ID from the "customers" table.

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True. Data Envelopment Analysis (DEA) is best used in an environment of low diverges and high complexity. In such situations, DEA can effectively analyze and compare the efficiency of decision-making units, even when dealing with multiple inputs and outputs.

Data Envelopment Analysis (DEA) is a method used to measure the efficiency of decision-making units. It works by analyzing a set of inputs and outputs to determine the relative efficiency of each unit. DEA is best suited for situations where there is low diverges among the units being analyzed, meaning they are all operating under similar conditions. Additionally, DEA is most effective in situations of high complexity, where there are multiple inputs and outputs that need to be considered. Therefore, the statement that DEA is best used in an environment of low divergence and high complexity is true.

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Answer:

(3)11

Step-by-step explanation:

We are given that

\((x^2-12x+35)(x^2+10x+24)=504\)

We have to find the sum of positive roots of the equation.

\(x^2(x^2+10x+24)-12x(x^2+10x+24)+35(x^2+10x+24)=504\)

\(x^4+10x^3+24x^2-12x^3-120x^2-288x+35x^2+350x+840=504\)

\(x^4-2x^3-61x^2+62x+840-504=0\)

\(x^4-2x^3-61x^2+62x+336=0\)

Factor of 336

2,3,4,6,8,7,

Let x=2

\(2^4-2^4-61(2^2)+62(2)+336\neq0\)

x=2 is not the root of equation

x=-2

\((-2)^4-2(-2)^3-61(-2)^2+62(-2)+336=0\)

Hence x=-2 is the root of equation.

x+2 is a factor of equation.

x=3

\(3^4-2(3^3)-61(3^2)+62(3)+336=0\)

Therefore, x=3  is the root of equation.

\((x+2)(x-3)(x^2-x-56)=0\)

\((x+2)(x-3)(x^2-8x+7x-56)=0\)

\((x+2)(x-3)(x(x-8)+7(x-8))=0\)

\((x+2)(x-3)(x-8)(x+7)=0\)

\(x-8=0\implies x=8\)

\(x+7=0\implies x=-7\)

Positive roots are 3 and 8

Sum of positive roots=3+8=11

Option (3) is true.

30° is the angle of elevation from the base to the top of the mountain.

Trigonometric ratios are the ratios of the length of sides of a triangle.

These ratios in trigonometry state the relation between the ratio of sides of a right triangle to the respective angle.

The basic trigonometric ratios are sin, cos, and tan, namely sine, cosine, and tangent ratios.

The other important trig ratios, cosec, sec, and cot, can be derived using the sin, cos, and tan respectively.

Sin θ = Perpendicular / Hypotenuse

According to the question,

Perpendicular = Vertical height of Mountain. = 1290 m

Hypotenuse    = The distance from the top of the mountain to the base                               of the Mountain. = 2580 m

⇒ Sin θ = 1290/ 2580

⇒ Sin θ = 1/2⇒ θ = Sin⁻¹(1/2)

⇒ θ = 30°

Hence, 30° is the angle of elevation from the base to the top of the mountain.

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Answer:

You didn't leave an image boo

Answer:

247 for both if its edge

Step-by-step explanation:

The the expression is in the required form. Thus, A = 211, B = 1, and C = 1. We use the properties of logarithms to rewrite the expression 21619 log 211 in a form with no logarithm of a product, quotient, or power. is in the required form. Thus, A = 211, B = 1, and C = 1. We use the properties of logarithms to rewrite the expression 21619 log 211 in a form with no logarithm of a product, quotient, or power.

To rewrite the expression 21619 log 211 in a form with no logarithm of a product, quotient or power using the laws of logarithms; it is best to express it in exponential form and then separate it into logarithms.21619 log 211Let's express this expression in exponential form.

We know that log a b = c if a = b.

Using this property, we can write,

\(21619 log 211 = 211^(21619)\)

Now let's separate this exponential expression into logarithms.

\(z1y19 log A log(z)+ Blog(y) + Clog(z) 211\)

Now, we have the value of

\(211^(21619)\)

so we can substitute this value in the above expression to get,

\(z1y19 log A log(z)+ Blog(y) + Clog(z) 211z1y19 log A + log(z^z1y19) + Blog(y) + log(z^C) 211\)

Now we use the property that

log a^n = nlog a to split the logs into their coefficients.

\(z1y19 log A + z1y19 log(z) + Blog(y) + Clog(z).\)

Now, the expression is in the required form. Thus, A = 211, B = 1, and C = 1. We use the properties of logarithms to rewrite the expression 21619 log 211 in a form with no logarithm of a product, quotient, or power.

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Answer:

80 & 105

Step-by-step explanation:

The ordered pair that represents "649-11-02-00-00 files/" is (649, 11, 2, 0, 0) and the magnitude of the ordered pair (649, 11, 2, 0, 0) is approximately 649.4.

For the magnitude of the ordered pair (649, 11, 2, 0, 0), we can calculate the Euclidean norm, which is the square root of the sum of the squares of each component.

Magnitude = \(\sqrt\)(649^2 + 11^2 + 2^2 + 0^2 + 0^2)

              =\(\sqrt\\\) (421201 + 121 + 4)

              = \(\sqrt\)(421326)

              ≈ 649.43

So, the magnitude of the ordered pair (649, 11, 2, 0, 0) is approximately 649.43.

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Answer:

A. 1485

B. 145

Answer:

Liam is correct and Tehya isn't

Answer:

huh? really?

Step-by-step explanation:

:/ thats cool

Answer: yes?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Find what you know.

Perimeter = 64cm

Length = width*3 + 8cm

Width = unknown (use w)

Perimeter of a rectangle formula is:

P = 2*L + 2*W or P = 2(L + W)

We know P and we have a formula for L

64cm = 2[(w*3 + 8cm) + w]

64cm = 2(3w + 8cm) + 2w

64cm = 6w + 16cm + 2w

Combine like terms:

64cm = 8w + 16cm

Subtract 16cm from both sides:

64cm - 16cm = 8w

48cm = 8w

Divide both sides by 8 to isolate the variable.

48cm/8 = w

6cm = w or swap them and w = 6cm

Now take the formula for perimeter again and plug in the value for width

64cm(P) = 2(L + 6cm(W))

64cm = 2L + 12cm

Subtract 12cm from both sides:

64cm - 12cm = 2L

52cm = 2L

Divide both sides by 2 to isolate the variable:

52cm/2 = L

26cm = L or swap them and L = 26cm

Rectangle is 26cm in length and 6cm in width.  There is no height variable in a 2D rectangle, but sometimes (rarely) width is referred to as height. If this is a 3D box, than the height is equal to the width, in which case the information given might be slightly misleading.

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Donald S. answered • 01/06/15

TUTOR  New to Wyzant

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The perimeter = 2l + 2w

l = 3w+8

2l+2w = 64

2(3w+8)+2w = 64

6w+2w+16 = 64

8w + 16 = 64

8w = 48

w = 6 so l = 3(6)+8 = 26

Answer:

B. 60

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The scale of inches in the drawing to inches in the actual object is 3 : 200.

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

Given is a town where town planners are planning a 500-foot by 700-foot parking lot by making a scale drawing that is 90 inches by 126 inches.

1 foot is equivalent to 12 inches.

The dimensions of parking lot in inches will be -  

(500 x 12) by (700 x 12)

6000 inches by 8400 inches

The dimensions of scale drawing in inches -

90 inches by 126 inches

Now, the ratio of length in scale drawing to the actual length of parking lot -

6000/90 = 3/200

In ratio, we can write -  3 : 200

Similarly, the ratio of width in scale drawing to the actual width of parking lot -

126/8400 = 3/200

In ratio, we can write -  3 : 200

Therefore, the scale of inches in the drawing to inches in the actual object is 3 : 200.

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Answer:

D. Survey every 10th customer to enter the store

plz mark as brainliest

Answer:

D. Survey every 10th customer to enter the store

Step-by-step explanation:

have a good day!

The sum of 2 is the least likely outcome when rolling two number cubes. Other sums such as 7, 12, and 11 have multiple combinations that can result in those sums, making them more likely compared to the single combination resulting in a sum of 2.

To construct a sample space representing the roll of two number cubes, we consider all possible outcomes when rolling each cube. Since each cube has six faces numbered from 1 to 6, there are 6 possible outcomes for each cube. The sample space can be represented as a set of ordered pairs, where each number represents the result of rolling one cube.

Sample space for rolling two number cubes:

{(1,1), (1,2), (1,3), (1,4), (1,5), (1,6), (2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (3,1), (3,2), (3,3), (3,4), (3,5), (3,6), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (5,1), (5,2), (5,3), (5,4), (5,5), (5,6), (6,1), (6,2), (6,3), (6,4), (6,5), (6,6)}

To determine which number(s) are least likely to be the sum of the two number cubes, we analyze the sample space and count the number of combinations that yield each sum.

a. The sum of 2 is obtained only when both cubes show a result of 1. There is only one combination that yields a sum of 2: (1,1). Therefore, the sum of 2 is the least likely outcome.

b. The sum of 7 can be obtained through the following combinations: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1). Since there are six possible combinations that result in a sum of 7, it is not least likely.

c. The sum of 12 can be obtained through the following combinations: (6,6). There is only one combination that yields a sum of 12. Therefore, the sum of 12 is also not least likely.

d. The sum of 11 can be obtained through the following combinations: (5,6), (6,5). There are two possible combinations that result in a sum of 11. Therefore, the sum of 11 is not least likely either.

In conclusion, the sum of 2 is the least likely outcome when rolling two number cubes.

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The correct null and alternative hypotheses for this test H0 :p=0.50 and H1:p ≠ 0.50

What is Null and alternative Hypothesis?

In statistical hypothesis testing, null and alternate hypotheses are utilised. The alternative hypothesis of a test expresses your research's prediction of an effect or relationship, whereas the null hypothesis of a test always predicts no effect or no association between variables.

Let p denotes the true proportion of odds

To test null hypothesis H₀ :P = 0.50 against alternative hypothesis H₁:p ≠ 0.50

let p  denotes the sample proportion and n denotes the sample size

here,

p = 14/40

= 0.350

n=40, p₀ = 0.500,

= standard error of proportion under null 0.50 * ( 1 -0.50) /40

= 0.079057

The test statistic can be given as :

z = \(\frac{(p - p_{0)} }{\sqrt{p_{0} * ( 1-p_{0}/n } }\)

which under H₀ follow a standard normal distribution

we reject H₀ t 0.05 level of significance if P- value <0.05 or if |Zobs| > z0.025

Now,

The value of the test statistic = -1.897367

The critical value = ±1.959964

P-value = P(|z|>Zobs) = 2*P(Z < - 1.897367)

= 2 * 0.028890

= 0.057780≈ 0.0578

Since p-value > 0.05 and |Zobs| ≠zcritical = 1.959964

so we fail to reject H₀ at 0.05 level of siginficance

The population proportion is consequently not substantially different from 0.05, we can conclude.

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Answer:

the answer should be x= -7 hope this helps!

The equation for a parabola with a focus at (-4, 3) and a directrix at y = 5 is; y = ¹/₄(x + 4)² + 4

The standard form of the equation of a parabola is given by;

(x - h)² = 4p(y - k)

where;

We are given the coordinates of the focus of the parabola as (-4, 3)

Thus, from (h, k + p)

h = -4

k + p = 3  ---- (eq 1)

From y = k - p,  since it has a directrix of y = 5, then;

k - p = 5  ---- (eq 2)

→ Add equations (1) to (2) to get;

2k = 8

k = 8/2

k = 4

Put 4 for k in equation (1) to get

4 + p = 3

p = 4 - 3

p = 1

Plugging in the relevant values into the standard form of the equation of the parabola gives (x - h)² = 4p(y - k)

(x - (-4))² = 4(1)(y - 4)

⇒ (x + 4)² = 4(y - 4)

⇒ y = ¹/₄(x + 4)² + 4

The equation of the parabola is y = ¹/₄(x + 4)² + 4

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Answer:

joe=6

Sam=11

Step-by-step explanation:

lets see...

i explain 1by1

firstly we know that joe is 5 - 3 x Sam

(read the sentences VERY CAREFULLY)

then, we put Sam as math variable "s"

it will be; 5-3 x S

\(5 - 3 \times s\)

the total of their age is 28

\(5 - 3 \times s = 28\)

simplify it

it will be 5-S3=28

then you will get 11 right

that will be sam's age

-5 and it will be Joe's age

Answer:

1 is true

2 is true

3 is true

4 is false

5 is true

6 is true

Answer: 7

Step-by-step explanation:

You would use a histogram to illustrate data for a variable measured at the interval/ratio scale of measurement.

A histogram is a type of graph that uses adjacent rectangles to depict the distribution of continuous numerical data.

A variable is a feature or property that can take on several different values. In the research context, a variable can be described as anything that may have an effect on the outcome of a study or research project.

Variables can be classified according to the scale of measurement, which is a mathematical categorization of the nature of variables that have been measured. There are four different levels of measurement: nominal, ordinal, interval, and ratio.

Nominal data describes categories that cannot be ordered, while ordinal data describes categories that can be ordered. Interval data measures differences between variables, but there is no true zero point. On the other hand, ratio data has a true zero point and describes the ratio of two variables.

Therefore, histograms are used to illustrate data for a variable measured at the interval/ratio scale of measurement.

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Answer:

2x+5(3x+4)=

Use the distributive property to multiply 5 by 3x+4.

2x+15x+20

Combine 2x and 15x to get 17x.

Step-by-step explanation:

17x is the answer

Answer:

"subset"

Step-by-step explanation:

The "set within a set" is called a "subset."

Answer:

$54.01

Step-by-step explanation:

All you have to do is $300.00-$245.99 .