Please help please r

Answer:answer

Step-by-step explanation: we’ll see to put it in a simpler way you are first going to have to joe nuts

The simplest terms of the expression given above would be = -7/8

The simplest terms of a given expression is defined as the reduced form of the expression after carrying out the necessary calculations.

The given term:

-10(9v-2v+7)-10v

Open the brackets by multiplying through with -10;

= -90v + 20v -70 -10v

Bring the like terms together;

= -90v + 20v -10v -70

= -80v -70

80v = -70

V = -70/80

V = -7/8

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Answer:

k, m,  m mm

Step-by-step explanation:

Answer:

x = 3

Step-by-step explanation:

Step 1:

6x + 5 = 23

Step 2:

6x = 18

Answer:

x = 3

Hope This Helps :)

yeah me too can someone help us?hope someone helps :)

The equation of a circle with center  (1,-2) and radius 2 is ( x - 1 )² + ( y + 2 )² = 4.

The standard form of the circle is x² + y² = r²

Where r is the radius.

h and k is the horizontal and vertical translation which represent the center of the circle..

Hence, the formula is derived from the distance formula where the distance is between the center and every point on the circle is equal to the length of the radius.

( x - h )² + ( y - k )² = r²

Given that;

Center: (1,-2)

Plug the given values into the equation and simplify.

( x - h )² + ( y - k )² = r²

( x - 1 )² + ( y - (-2) )² = 2²

( x - 1 )² + ( y + 2 )² = 2²

( x - 1 )² + ( y + 2 )² = 4

Therefore, the equation of the circle is ( x - 1 )² + ( y + 2 )² = 4

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The probability that a randomly selected student majors in business or economics is 44.8%.

Let 'B' be the students of business.

P(B) = 35.1%

Let 'E' be the students of business.

P(E) = 12.3%

Thus,

P(E ∩ B) = 2.6%

P(E ∪ B) = probability for student majors in business or economics.

P(E ∪ B) = P(B) + P(E) - P(E ∩ B)

Put the values-

P(E ∪ B) = 35.1% + 12.3% -  2.6%

P(E ∪ B) = 44.8%

Thus, the probability that a randomly selected student majors in business or economics is 44.8%.

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Answer:

adults = 52

children = 108

Step-by-step explanation:

two equations can be derived from the question

x + y = 160 equation 1

2x + 5y = 476   equation 2

x = number of children

y = number of adults

multiply equation 1 by 2

2x + 2y = 320  equation 3

subtract equation 1 from 2

3y = 156

y =52

substitute for y in equation 1

x + 52 = 108

x = 160 - 52 = 108

Answer:

Step-by-step explanation:

D - correct

From the table, it is seen that 191 students play sports and there are 97 students from 10 grades surveyed. Option C is correct.

Arithmetic is a branch of mathematics that deals with the study of numbers, their properties, and their operations. It involves the basic operations of addition, subtraction, multiplication, and division, as well as more advanced operations such as exponents, roots, logarithms, and trigonometric functions.

The table provides information on the number of students who play sports, the number of 10th graders surveyed, and the total number of students. Specifically, the table shows that 191 students participate in sports and that 97 of the surveyed students are in 10th grade.

Thus, from the table, it is seen that 191 students play sports and there are 97 students from 10 grades were surveyed. Option C is correct.

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UIF stands for Unemployment Insurance Fund.

Thus this is the full form of UIF.

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The three consecutive integers are 10, 11, and 12.

To find three consecutive integers, the sum of whose squares is 65 more than three times the square of the smallest, follow these steps:

1. Let the smallest integer be x. Then, the other two consecutive integers are x + 1 and x + 2.

2. The sum of their squares is x^2 + (x + 1)^2 + (x + 2)^2.

3. The given condition is that this sum is 65 more than three times the square of the smallest integer: x^2 + (x + 1)^2 + (x + 2)^2 = 3x^2 + 65.

4. Simplify the equation:
  x^2 + (x^2 + 2x + 1) + (x^2 + 4x + 4) = 3x^2 + 65

5. Combine like terms:
  3x^2 + 6x + 5 = 3x^2 + 65

6. Subtract 3x^2 from both sides to eliminate the x^2 terms:
  6x + 5 = 65

7. Subtract 5 from both sides:
  6x = 60

8. Divide by 6:
  x = 10

So, the three consecutive integers are 10, 11, and 12.

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Answer:

(51, 26) x-y=25 and so on

(47,33) 2x-3y=-5 and so on

(-17, -36) x-y=19 and so on

(-31, -56) 2x-y=-6 and so on

Step-by-step explanation:

=======================================================

Explanation:

The U refers to set union. We combine the elements of set R and set S together in one big set. Toss out any duplicates. Sorting the items is optional, but I recommend it.

R U S = {2, 3, 5, 17, 19, 37} U {3, 5, 7, 11, 13, 37}

R U S = {2, 3, 5, 17, 19, 37,      3, 5, 7, 11, 13, 37}

R U S = {2, 3, 5, 7, 11, 13, 17, 19, 37}

This list of values consist of items in set R, set S, or both.

There are 9 items in set R U S.

This is out of 12 items total in the universal set rectangle.

The probability of randomly selecting something from set R U S is 9/12 = 3/4

Answer:

Assume we want to find the solution to this system of equations.

The solution is (2,-2)

Step-by-step explanation:

We can find the solution either mathematically or by graphing.  I'll do both.

Math:

Rearrange:

-2x-6y=8

-6y=8 +2x

y = -(1/3)x -(4/3)

---

Now use this expression of y in the second equation:

-6x-6y=0

-6x-6(-(1/3)x -(4/3)) =0

-6x + 2x +8 =0

-4x = - 8

x = 2

---

Use x = 2 in the first equation to find y:

y = -(1/3)x -(4/3)

y = -(1/3)*(2) -(4/3)

y = -(2/3) -(4/3)

y = -(6/3) or -2

The solution is (2,-2)

===============

Graphing:

See attached graph.

Answer:

Step-by-step explanation:

-2x - 6y = 8

6x + 6y = 0

4x = 8

x = 2

-4 - 6y = 8

-6y = 12

y = -2

(2, -2)

Answer: $79.43

Step-by-step explanation:

$30 + ($18.25 x 3 h) = $84.75

$164.18 - $84.75 = $79.43

A linear function is a type of mathematical function that creates a straight line when graphed. It is an essential type of mathematical function with numerous uses.

In algebra, a linear function is a function that plots as a straight line with a constant slope. Here are the following functions that are linear:For a given linear function f(x) = ax + b, where x is the independent variable and a and b are constant values, it can be observed that as x varies, f(x) also changes proportionally by a factor of a. Furthermore, it can be observed that the constant term b determines the y-intercept of the line that the function plots to.

As a result, the linear function always produces a straight line graph whose slope is a and whose y-intercept is b.The answer is: `f(x) = 2x-3 and f(x) = -5`Since the above functions have a degree of 1 and a slope that is constant, they can be classified as linear. The slope of the line in each of these functions represents the rate of change, which is the same for all values of x. Therefore, a linear function can be represented algebraically by the equation: f(x) = ax + b.

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Answer:

it would be 4 right (the last one)

Step-by-step explanation:

Answer:

H =

\(x = \frac{7 + - i \sqrt{71} }{10} \)

I =

\(x = \frac{ - 1 + - i \sqrt{35} }{6} \)

Quadratic Formula

x = -b +- sqrt{b^2 - 4ac}/(2a)

For question H, subtract 4 from 10 and equate to 0. We now let a = 5, b = -7 and c = 6.

Plug into the formula and do the math..

For question I, subtract 7 from 13 and equate to 0. We know let a = 6, b = 2 and c = 6.

Plug into the formula and do the math.

Answer:

  cost = 1.35n

  $33.75 for 25 songs

Step-by-step explanation:

Based on the numbers given, the cost is proportional to the number of songs downloaded. The constant of proportionality is the cost of one song: 1.35.

  cost = 1.35n

For 25 songs, ...

  cost = 1.35·25 = 33.75 . . . . dollars

__

The equation is ...

  cost = 1.35n

Answer:

3 parallelograms

Step-by-step explanation:

The approximate probability that the observed responses would be as far or farther from the expected responses if there is no association between age-group and preference is approximately 0.1282.

To determine the probability that the observed responses would be as far or farther from the expected responses if there is no association between age-group and preference, we need to calculate the p-value associated with the test statistic.

Since the p-value is not provided directly, we cannot determine the exact probability. However, we can make an estimation based on the given options.

The p-value represents the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming no association between the variables. A smaller p-value indicates stronger evidence against the null hypothesis of no association.

Among the given options, the smallest value is 0.0001. If this were the correct option, it would suggest a very small probability of the observed responses occurring by chance alone if there were no association.

To make an estimation, we typically compare the p-value to a significance level (usually 0.05) to determine statistical significance. If the p-value is smaller than the significance level, we reject the null hypothesis in favor of the alternative hypothesis.

Based on the options provided, the closest value to the conventional significance level of 0.05 is 0.1282. This suggests that if the p-value associated with the test statistic of 4.108 is approximately 0.1282 or larger, the observed responses would not be considered statistically significant, and we would fail to reject the null hypothesis of no association between age-group and preference.

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Answer: x=3

Step-by-step explanation:

Subtract 7 from both sides to isolate x

\(x+7-7=10-7\\x=3\)

Answer:5 days

Step-by-step explanation:

13+3=16

16+3=19

19+3=22

22+3=25

25+3=28

8/15 = x/6

Using cross multiplication let us find the value of x .

= 15 × x = 6 × 8

= x = 48 ÷ 15 ( transposing ×15 from LHS to RHS changes ×15 to ÷+5 )

= x = 3.2

Therefore , the equation that can be used to solve the proportion :-

Answer:

its B

Step-by-step explanation:

Answer:

B.18

Step-by-step explanation:

2+1+3

3+3=6

6+5=11

11+7=18

The indefinite integral of x^50 cos(π/x^49) dx is -1/(51 * 49π) * x^51 * sin(π/x^49) + C, where C represents the constant of integration.

To evaluate the indefinite integral ∫ x^50 cos(π/x^49) dx, we can use the substitution method.

Let's make the substitution u = π/x^49. Then, differentiating both sides with respect to x, we get du/dx = -49π/x^50. Solving for dx, we have dx = -(x^50/49π) du.

Now, substituting these values into the integral, we have:

∫ x^50 cos(π/x^49) dx = ∫ -x^50/49π * cos(u) du

Pulling out the constant factor of -1/(49π), we have:

-1/(49π) * ∫ x^50 * cos(u) du

Using the power rule for integration, we can integrate x^50 to get (1/51) * x^51. Integrating cos(u) with respect to u gives us sin(u).

Substituting back u = π/x^49, we have:

-1/(49π) * (1/51) * x^51 * sin(π/x^49) + C

Simplifying, we get:

-1/(51 * 49π) * x^51 * sin(π/x^49) + C

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The distance between the points is 4.3.

Given the points are C(2,4) and D (5,7)

let the two points be:

C (2,4) = (x₁ , y₁)

D (5,7) = (x₂ , y₂)

The length of the section of a line connecting any two places represents their distance. Only one line connects the two places, and it passes through both. The length of the line segment that connects the two places may therefore be used to compute the distance between them.

Distance between the points = √(x₂ ₋ x₁)² ₊ (y₂ ₋ y₁)²

substitute the points.

d = √(5 ₋ 2)² ₊ (7 ₋ 4)²

d = √(3)² ₊ (3)²

d =  √9 ₊ 9

d =  √18

d = 4.24

rounding off to nearest tenth

d = 4.3

Hence we get the distance between two points as 4.3.

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Option a. calculate a correlation coefficient is the right response because a correlation coefficient measures the strength and direction of the relationship between two interval level variables.

This is because a correlation coefficient measures the strength and direction of the relationship between two interval level variables. It provides a numerical value that ranges from -1 to 1, where -1 indicates a strong negative correlation, 0 indicates no correlation, and 1 indicates a strong positive correlation.

A scatter plot is also useful in visualizing the relationship between two variables, but it does not provide a numerical value like the correlation coefficient. A test of significance and variance calculation are not typically used as first steps in assessing the relationship between two variables.

Hence, option a. calculate a correlation coefficient is the correct answer.

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