I’ll give brainlest if it’s right Evaluate the expression when y = 5.
3+ y + 6
09
O 14
O 19
0 21

Answer:

278.33X - 553.34222

Step-by-step explanation:

Given the data:

Year, X :

1992

1993

1994

1995

1996

1997

1998

1999

2000

Sales, Y:

1.2

1.4

1.6

1.8

2.2

2.5

2.8

3.0

3.4

Using a linear regression calculator, the regression fit model for the data is

Y = 278.33X - 553.34222

Where, Y = sales in Millions

x = year

Answer:

1 quarter, 3 dimes, 1 nickel,1 penny

The number of cubes Lucy should add is 8.

In mathematics, an equation is a formula that expresses the equivalency of two expressions, by connecting them with the equals sign = .

Given that, a visage balance has 3 cells on one visage and 11 cells on the other visage.

The equation to represent the situation is 3 c = 11

The result of an equation is the set of all values that, when substituted for unknowns, make an equation true.

Now, c = 11- 3

c = 8

thus, the number of cells Lucy should add is 8.

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Answer:

A

Step-by-step explanation:

25 is by itself and 8 is weekly by an x amount of weeks

Answer:

A. y = 8x + 25

Step-by-step explanation:

y = 8x + 25

    8x money he earns for the trash per week

    25 money for babysitting.

Answer:

=8b + 5

Step-by-step explanation:

do you need an explantion

Answer:

8b + 5

Step-by-step explanation:

By consulting the table below, you will find how I got 8b + 8, and then

Since 8 and -3 are like terms, I put them together

8 - 3 = 5

So in the simplest form the equation is

8b + 5

The given triangles are obtuse = 36 m, right angled = 225 m and right angled = 2500 m.

Triangle can be defined in which it consists of three sides, three angles and sum of three angles is always 180 degrees.

7.) This triangle is obtuse.

To see this, we can use the Pythagorean theorem:

4*4 + 5*5 = 16 + 25 = 41

6*6 = 36 m

Since 41 > 36, we know that the triangle is obtuse.

8.) This triangle is right.

To see this, we can again use the Pythagorean theorem:

11*11 + 12*12 = 121 + 144 = 265

15*15 = 225 m

Since 265 = 225 + 40, we know that the triangle is right.

9.) This triangle is also right.

We can use the same method as before:

30*30 + 40*40 = 900 + 1600 = 2500

50*50 = 2500 m

Since 2500 = 2500, we know that the triangle is right.

Therefore, The given triangles are obtuse , right angled and right angled.

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Answer:

6

Step-by-step explanation:

You have to divide 24 by four.

A one-way ANOVA is a statistical test used to compare the means of four populations in this case. Thus, the degrees of freedom for the F-statistic in this one-way ANOVA are (df1, df2) \(= (3, 78)\).

The degrees of freedom are essential for calculating the F-statistic, which helps determine whether there are significant differences among the population means.

To calculate the degrees of freedom for the F-statistic, we need to determine the numerator degrees of freedom (df1) and the denominator degrees of freedom (df2). For df1 (numerator degrees of freedom), it is equal to the number of populations (groups) minus 1.

In this case, there are four populations,

So: df1 \(= 4 - 1 = 3\)

For df2 (denominator degrees of freedom), it is equal to the total sample size (N) minus the number of populations (groups).

The total sample size is given as \(18 + 22 + 20 + 22 = 82\).

So: df2 \(= 82 - 4 = 78\)

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Answer:

divide 8 and 398 and you will get ur answers

the solutions for -2sinθ = 1.2 in the interval 2π ≤ θ ≤ 4π are approximately:

θ ≈ -0.6435 radians, 5.499 radians, 3.785 radians, and 9.927 radians.

To solve the equation -2sinθ = 1.2 in the interval 2π ≤ θ ≤ 4π, follow these steps:

Step 1: Rewrite the equation in terms of sinθ:

sinθ = -1.2 / 2

Step 2: Check if the right-hand side of the equation is within the range of the sine function, which is -1 to 1. If it is not, then there are no solutions in the given interval. In this case, -1.2/2 = -0.6, which is within the range of the sine function, so we can proceed.

Step 3: Use the inverse sine function (arcsin) to find the value of θ:

θ = arcsin(-0.6) + 2kπ or θ = π - arcsin(-0.6) + 2kπ

where k is an integer (k = 0, ±1, ±2, ...)

Step 4: Substitute the value of k to find all possible solutions within the interval 2π ≤ θ ≤ 4π:

1. For k = 0:

θ = arcsin(-0.6) = -0.6435 radians (approx)

2. For k = 1:

θ = arcsin(-0.6) + 2π ≈ 5.499 radians (approx)

3. For k = -1:

θ = π - arcsin(-0.6) ≈ 3.785 radians (approx)

4. For k = 2:

θ = π - arcsin(-0.6) + 2π ≈ 9.927 radians (approx)

So, the solutions for -2sinθ = 1.2 in the interval 2π ≤ θ ≤ 4π are approximately:

θ ≈ -0.6435 radians, 5.499 radians, 3.785 radians, and 9.927 radians.

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The slope-intercept equation of the line that best fits the data, with a slope of 5.3333 and a y-intercept of 9.6666.

What is the slope?

The slope of a line represents the change in the dependent variable (y) for a unit change in the independent variable (x). In this case, the slope of the line of best fit represents the average change in the test grade for a one hour increase in studying. To find the slope, you can use the formula:

m = (Σxy - (Σx)(Σy)/n) / (Σx² - (Σx)²/n)

To find the slope-intercept equation of the trend line using the first and last data points, we'll first find the slope (m) of the line. The slope can be found using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

where x₁ and y₁ are the values for the first data point, and x₂ and y₂ are the values for the last data point. In this case, the first data point is (1, 15) and the last data point is (7, 47):

m = (47 - 15) / (7 - 1) = 32 / 6 = 5.3333

Next, we'll use the slope and the first data point to find the y-intercept (b) using the formula:

b = y₁ - m * x₁

b = 15 - 5.3333 * 1 = 15 - 5.3333 = 9.6666

Finally, we'll use the slope and y-intercept to write the slope-intercept equation of the line:

y = mx + b

y = 5.3333x + 9.6666

Hence, the slope-intercept equation of the line that best fits the data, with a slope of 5.3333 and a y-intercept of 9.6666.

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Answer:

\(y=\dfrac{16}{3}x+\dfrac{29}{3}\)

Step-by-step explanation:

\(\boxed{\begin{minipage}{8cm}\underline{Slope Formula}\\\\Slope $(m)=\dfrac{y_2-y_1}{x_2-x_1}$\\\\where $(x_1,y_1)$ and $(x_2,y_2)$ are two points on the line.\\\end{minipage}}\)

The first and last data points of the given table are:

Substitute the data points into the slope formula to find the slope of the trend line:

\(\text{Slope}\;(m)=\dfrac{47-15}{7-1}=\dfrac{32}{6}=\dfrac{16}{3}\)

\(\boxed{\begin{minipage}{6.3 cm}\underline{Slope-intercept form of a linear equation}\\\\$y=mx+b$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $b$ is the $y$-intercept.\\\end{minipage}}\)

Substitute the found slope and the first data point into the slope-intercept formula and solve for b:

\(\implies 15=\dfrac{16}{3}(1)+b\)

\(\implies 15=\dfrac{16}{3}+b\)

\(\implies b=15-\dfrac{16}{3}\)

\(\implies b=\dfrac{45}{3}-\dfrac{16}{3}\)

\(\implies b=\dfrac{45-16}{3}\)

\(\implies b=\dfrac{29}{3}\)

Therefore, the equation of the trend line in slope-intercept form is:

\(y=\dfrac{16}{3}x+\dfrac{29}{3}\)

Answer:

48 is the answer

Step-by-step explanation:

Answer:

You can find slope of line using the slope formula. The slope formula is Y2-Y1/X2-X1. Substitute in the points and solve.

6-2/6-5

4/1

4

The slope of the line is 4.

Hope this helps! :)

The statement "There exists a positive integer that can be written as the sum of two different pairs of squares" is false.

To prove the statement false, we need to show that for any positive integer, it is not possible to express it as the sum of two different pairs of squares.

Let's assume the positive integer is represented as "n." We can explore all possible pairs of squares whose sum is equal to n by iterating through values of one of the squares (let's call it a) from 1 to √n. For each value of a, we calculate the corresponding square \((b = n - a^2)\). If b is a perfect square and is different from \(a^2\), we have found a valid pair of squares whose sum is n.

If we exhaust all possible values of a without finding a valid pair, we can conclude that no such pairs exist, and therefore, the statement is false.

Using a computer program to implement this logic can significantly speed up the process of checking all possible pairs of squares for a given positive integer. By leveraging the computational power of a computer, we can iterate through the values of a and check if the corresponding b is a perfect square and different from \(a^2.\) If we find a valid pair, we can immediately stop the program and output the result. Otherwise, we continue the iteration until all values of a have been checked.

By employing this approach, we can systematically verify the statement for various positive integers efficiently.

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The Graph will look like this:

The graph will show a vertical line crossing the x-axis at x = 3 and extending infinitely in both the positive and negative y-directions.

The equation x = 3 represents a vertical line that passes through the point (3, 0) on the Cartesian coordinate system. This means that for every value of y, the corresponding x-coordinate is always 3. Since the line is vertical, it extends infinitely in both the positive and negative y-directions.

To visualize the line x = 3 on a graph:

1. Draw two perpendicular axes, the horizontal x-axis, and the vertical y-axis.

2. Since x = 3, draw a vertical line passing through the point where x = 3 on the x-axis (at x = 3) and extending through the entire y-axis.

The resulting graph will show a vertical line crossing the x-axis at x = 3 and extending infinitely in both the positive and negative y-directions.

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Step-by-step explanation:

The answer is -9

Answer:

-9

Step-by-step explanation:

Step-by-step explanation:

B. Four less than a number.

Answer:

Step-by-step explanation:

The value of x is 7.

And every side of the rhombus is 24 unit.

A rhombus is one type of parallelogram and has 4 sides and 4 vertices.

Every side is equal in length and opposite angles are equal.

Given:

ABCD is a rhombus.

BA = 5x - 11

And AD = 6x - 18

Then, BA = AD

5x - 11 =  6x - 18

x = 7

Therefore, the value of x is 7.

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Answer:

y = -4/5x + 4

General Formulas and Concepts:

Pre-Algebra

Algebra I

Standard Form: Ax + By = C

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Standard Form:   4x + 5y = 20

Step 2: Rewrite

The probability that at least 50 will do their homework on time is 65%.

To solve this problem, we need to first determine the probability of a single student doing their homework on time. We are given that approximately 85% of students do their homework on time, so the probability of any given student doing their homework on time is 0.85.

Now, we need to determine the probability of at least 50 out of 60 students doing their homework on time. To do this, we can use a binomial distribution. A binomial distribution is a probability distribution that describes the number of successes in a fixed number of independent trials, where each trial has the same probability of success.

In this case, we have 60 independent trials (60 students), and each trial has a probability of success of 0.85 (the probability that a student does their homework on time). We want to find the probability of at least 50 successes (students doing their homework on time). To do this, we can use the binomial cumulative distribution function (CDF), which gives us the probability of getting k or fewer successes in n trials:

\(P(X \leq k) = \sum^{ i=0}_{k} (n^C_a * p^a * q^{n-i})\)

where X is the number of successes, k is the number of successes we want (in this case, 50 or more), n is the total number of trials (60), p is the probability of success (0.85), q is the probability of failure (1-p, which is 0.15), and ⁿCₐ is the binomial coefficient, which represents the number of ways to choose i successes out of n trials.

Using this formula, we can calculate the probability of getting 50 or more successes out of 60 trials:

P(X ≥ 50) = 1 - P(X < 50) = 1 - Σa =0 to 49 (60Cₐ * 0.85ᵃ * 0.15⁽⁶⁰⁻ᵃ⁾)

When we apply the value of a as 5, then we get the probability as 0.65 or 65%.

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Answer:

14.3

Step-by-step explanation:

Remark

Make a rough sketch of the triangle.

Make F the right angle

Make <D = 66

E is the other angle.

Givens

EF = 32

<F = 90

<D = 66

Equation

Tan(D) = EF/FD

Solution

Tan(66) = 32/FD                  Multiply both sides by FD

FD*Tan(66) = 32            

Tan(66) = 2.246

2.246 * FD = 32                  Divide by 2.2246

FD = 32/2.246

FD = 14.25

FD = 14.3

Answer:

option A

Step-by-step explanation:

because it is not limited to anything while option b is limited to the men's hundred meter dash and 2016, and to the Olympics

C is limited to one game and stephen curry

D is limited to tuesday

since option a isn't confined to one day, person, or specific event there can be endless numbers assigned to the variable

Answer:okay

Step-by-step explanation:hm

The description refers to the diagnosis of brief psychotic disorder, which consists of abnormal behaviors identical to those in schizophrenia lasting for at least 1 month but fewer than 6 months.

Brief psychotic disorder is a psychiatric diagnosis characterized by the presence of psychotic symptoms, such as hallucinations, delusions, disorganized thinking, or grossly disorganized or catatonic behavior. These symptoms are similar to those seen in schizophrenia, but the key distinction is that brief psychotic disorder lasts for a shorter duration, specifically between 1 month and 6 months.

During this period, individuals with brief psychotic disorder may experience a sudden onset of symptoms that significantly impact their thoughts, emotions, and behavior. However, unlike schizophrenia, the duration of symptoms in brief psychotic disorder is limited, typically resolving within a few weeks to a few months.

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The probability that a bottle selected at random will contain at least one defect can be found using the complement probability of having no defect.

Let us denote the probability of having at least one defect in a bottle as P(A). P(A') is the probability of not having any defect in the bottle. Since the probability of an event occurring plus the probability of it not occurring is equal to 1, then \(P(A') = 1 - P(A).\)

Thus, the probability of having no defect in a bottle is

\(P(A') = (1 - 0.00001) = 0.99999\)

.Since a bottle has either no defect or at least one defect,

\(P(A) = 1 - P(A') = 1 - 0.99999 = 0.00001.\)

Therefore, the probability that a bottle selected at random will contain at least one such defect is \(0.00001 or 1/100,000.\)

This means that on average, only 1 bottle in 100,000 will contain such a defect.

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\(the \: answer \: is \: \frac{1}{10} \)

\(\blue{———hope it helps———}\)

\(\large{ \pink{ \underline{ { \sf{Answer}}}}}\)

\(the \: answer \: is \: \frac{1}{10} \)

Answer:

angle a=64, longest side AV : shortest side: TV

angle c=55 longest side: BW shortest side: CB

angle z =24 longest side: XZ shortest side: XP

Step-by-step explanation:

Answer:

\((-1) \times (-2) \times (-3) \times (-4) \times (-5) = - 120\)

Step-by-step explanation:

By the rule of Integer multiplications,

\((-1) \times (-2) \times (-3) \times (-4) \times (-5) = [ (-1) \times (-2) ] \times [(-3) \times (-4)] \times (-5)\)

                                                      \(= [2] \times [12] \times (-5)\)

                                                      \(= -120\)

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Answer: 10 units²

Step-by-step explanation:

      To find the area of a triangle when given its vertices, we can use this formula:

\(\displaystyle \frac{Jx(Ky - Ly) + Kx(Ly - Jy) + Lx(Jy - Ky) }{2}\)

      We will plug in our coordinate points and solve. The area will be the absolute value simplification of this expression.

J(-2, 1) is (Jx, Jy), K(0, 3) is (Kx, Ky), and L(3,-4) is (Lx, Ly).

\(\displaystyle \frac{Jx(Ky - Ly) + Kx(Ly - Jy) + Lx(Jy - Ky) }{2}\)

\(\displaystyle \frac{-2(3 - -4) + 0(-4 - 1) + 3(1 - 3) }{2}\)

\(\displaystyle \frac{-14+ 0-6}{2}\)

\(\displaystyle \frac{-20}{2}\)

\(\displaystyle -10,\;\;|-10|=10\)