Help plzz will give brainliest

Answer:

gl

Step-by-step explanation:

r i p

Answer:

dang bro im sorry that happened to you but it will get better :) dont cry over her

Answer:

Step-by-step explanation:

7x + 9 + 5x + 3 = 180

7x + 5x = 180 - 3 - 9

12x = 168

x = 168 / 12

x = 14

Answer:

14

Step-by-step explanation:

By applying the vertical angle theorem to 5x + 3, using same-side exterior angle theorem, we can find that:

(7x + 9) + (5x + 3) = 180

Now to find x, we can just solve for x in the equation we found.

(7x + 9) + (5x + 3) = 180

Combine like terms.

12x + 12 = 180

Subtract 12 from both sides.

12x = 168

Divide both sides by 12.

x = 14

So the value of x would be 14.

I hope you find my answer and explanation to be helpful. Happy studying.

Answer:

DE

Step-by-step explanation:

You can tell by the markings. Since there are two vertical markings it concludes that those sides are the same length.

Answer:

25 CAN be written as a fraction.

=> 250/10 = 25

Square root of 14 is 3.74165738677

It is NOT POSSIBLE TO WRITE THIS FULL NUMBER AS A FRACTION,  but if we simplify the decimal like: 3.74, THEN WE CAN WRITE THIS AS A FRACTION

=> 374/100

-1.25 CAN be written as a fraction.

=> -5/4 = -1.25

Square root of 16 CAN also be written as a fraction.

=> sqr root of 16 = 4.

4 can be written as a fraction.

=> 4 = 8/2

Pi = 3.14.........

It is NOT POSSIBLE TO WRITE THE FULL 'PI' AS A FRACTION, but if we simplify 'pi' to just 3.14, THEN WE CAN WRITE IT AS A FRACTION

=> 314/100

.6 CAN be written as a fraction.

=> 6/10 = .6

Answer:

Step-by-step explanation:

Simply check for x-coordinate of - 8, we see only the first option has it, all the others have x = 0 or x = 8 which is impossible to have on the line x = - 8.

It is parallel to the y-axis and x = - 8 for any value of y.

Correct choice is A or 1.

Similar to above, we exclude all the options with a different value of y other than 8.

There are two possible options left:

Consider line x = 0, this is overlapping with the y-axis.

x ≥ 0 gives us the y-axis (because of equal sign) and all the points to the right from it.

This is matching the description of option E or 5.

Answer:

(a)  The line parallel to the y-axis that intersects the x-axis at (-8, 0).

(b)  The line parallel to the x-axis that intersects the y-axis at (0, 8).

(c)  The set of all points to the right of and on the y-axis.

Step-by-step explanation:

Part (a)

Given condition:  x = -8

The equation of a vertical line is x = a.  

This line is parallel to the y-axis (since it is vertical) and intersects the x-axis at (a, 0).

Therefore, the description that satisfies the given condition is:

Part (b)

Given condition: y = 8

The equation of a horizontal line is y = a.  

This line is parallel to the x-axis (since it is horizontal) and intersects the y-axis at (0, a).

Therefore, the description that satisfies the given condition is:

Part (c)

Given condition:  x ≥ 0

The "≥" symbol means greater than or equal to.

x is greater than zero for all points to the right of the y-axis.

x is equal to zero for all points on the y-axis.

Therefore, the description that satisfies the given condition is:

When a model for a binary response has a continuous predictor and if the model truly holds, the deviance statistic for the model has an asymptotic chi-squared distribution as the sample size increases. This is true.

The calculated split points are used to "bin" the continuous predictor variables' ranges into subranges. Each bin has the ability to take part in the creation of various if-then logical conditions.

A continuous predictor exists in a model for a binary response. The deviance statistic for the model has an asymptotic chi-squared distribution as the sample size rises if the model is valid. It can be used to gauge how well a model fits.

In this case, the degrees of freedom is equal to the number of covariate patterns minus the number of model parameters plus one if the model is fit.

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Complete question

A model for a binary response has a continuous predictor. if the model truly holds, the deviance statistic for the model has an asymptotic chi-squared distribution as the sample size increases. it can be used to test model goodness of fit. True or false.

Answer:

\(\frac{20}{9}\) or \(2\frac{2}{9}\)

Step-by-step explanation:

\(2\) ÷ \(\frac{9}{10}\)

Rewrite \(2\) in fraction form:

\(\frac{2}{1}\) ÷ \(\frac{9}{10}\)

When dividing fractions, we invert the divisor (\(\frac{9}{10}\)) and multiply it by the dividend (\(\frac{2}{1}\)):

\(\frac{2}{1}\) × \(\frac{10}{9}\)

Multiply the numerators and denominators:

Improper fraction: \(\frac{20}{9}\)  

Mixed number: \(2\frac{2}{9}\)

Answer: 11 + x

HOPE THIS HELPS

Answer:

C

Step-by-step explanation:

Ordenered pairs of g(x):

(0,0); (2,1); (- 2,1)

g(x) = ax² + bx + c

a.0² + b.0 + c = 0

c = 0

a.2² + b.2 + c = 1

4a + 2b = 1

a.(- 2)² + b.(- 2) + c = 1

4a - 2b = 1

4a + 2b = 4a - 2b

2b + 2b = 0

4b = 0

b = 0

4a + 2b = 1

4a = 1

a = 1/4

g(x) = (1/4)x² + 0x + 0

g(x) = (1/4)x²

g(x) = (1/2x)²

I hope I've helped you.

To create the abbreviated expression, combine similar terms by adding them all together. If the expression be \($\sqrt{112 x^{10} y^{13}}$\) then expression exists \($4 \sqrt{7} x^5 y^6 \sqrt{y}$\).

Solving a math problem is the same thing as simplifying an expression. You basically strive to write an expression as simply as you can when you simplify it. In the conclusion, there shouldn't be any more multiplying, dividing, adding, or removing to do.

Start by recognizing the like terms, or terms with the same variables and exponents, in algebraic formulas. Then, to create the abbreviated expression, combine similar terms by adding them all together.

Let the expression be \($\sqrt{112 x^{10} y^{13}}$\)

separating the roots of the expression, we get

\($\sqrt{112 x^{10} y^{13}}=\sqrt{112} \sqrt{x^{10}} \sqrt{y^{13}}$\)

simplifying the above equation, we get

\($=\sqrt{112} \sqrt{x^{10}} \sqrt{y^{13}}$\)

Simplify \($\sqrt{x^{10}}= x^5$\)

\($=\sqrt{112} x^5 \sqrt{y^{13}}$\)

Simplify \($\sqrt{y^{13}}=y^6 \sqrt{y}$\)

\($=\sqrt{112} x^5 y^6 \sqrt{y}$\)

\($=\sqrt{112}=4 \sqrt{7}$\)

\($=4 \sqrt{7} x^5 y^6 \sqrt{y}$\)

Therefore, the correct answer is \($4 \sqrt{7} x^5 y^6 \sqrt{y}$\).

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Answer:

Given:

Area of the sector (A) = 104π/9 square inches

Central angle (θ) = 65 degrees

The formula for the area of a sector of a circle is:

A = (θ/360) * π * r^2

We can rearrange this formula to solve for the radius (r):

r^2 = (A * 360) / (θ * π)

Plugging in the given values:

r^2 = (104π/9 * 360) / (65 * π)

r^2 = (104 * 40) / 9

r^2 = 4160 / 9

r^2 ≈ 462.22

Taking the square root of both sides:

r ≈ √462.22

r ≈ 21.49

Therefore, the radius of the circle is approximately 21.49 inches.

Answer: 8 inches

Step-by-step explanation:

The missing values in the quantitative reasoning given are : -2, 13 and 9

Given the rule :

We can deduce that :

For the left circle :

circle = -6 - (-4) = -6 + 4 = -2

For the right circle :

circle = 11 - (-2) = 11 + 2 = 13

For the left square :

square = 13 + (-4)

square = 13 -4 = 9

Therefore, the missing values are : -2, 13 and 9

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The rate at which the distance between the car and the truck is changing when the car is 9 m from the intersection and the truck is 40 m from the intersection is about 19.187 m/s

The rate of change of a function is an indication of how fast the function's output changes per unit change in the input of the function.

Let y represent the distance of the car from the intersection, and let x represent the distance of the truck from the intersection, we get;

The distance between the car and the truck, d, can be obtained from Pythagorean Theorem as follows;

d² = y² + x²

2·d·d/dt = 2·y·dy/dt + 2·x·dx/dt

dy/dt = The speed of the car = 48 km/h = 40/3 m/s

dx/dt = The speed of the truck = 60 km/h = 50/3 m/s

y = The distance of the car from the intersection = 9 m

x = The distance of the truck from the intersection = 40 m

d² = 9² + 40² = 1681

d = √(1681) = 41

d = 41 m

Therefore;

2×41×d/dt = 2×9 × 40/3 + 2 × 40 × 50/3 = 4720/3

d/dt = 4720/3/(2 × 41) = 2360/123 ≈ 19.187

d/dt ≈ 19.187 m/s

The rate of change distance between the car and the truck d/dt is about 19.187 m/s

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Answer: 4

Step-by-step explanation:

Just add

Answer:

4

Step-by-step explanation:

just add or if you can't then use a calculator

Answer:

Step-by-step explanation:

This is a cyclic quadrilateral. Opposite angles add up to 180 degrees. So

2x+2x+4=180

4x+4=180

4x=176

x=44

So Angle O measure is 2(44)=88 degres

Answer:

its true, true, false, false

Step-by-step explanation:

a is true b is true c is false and d is false

The higher R-squared value of the multiple regression model with the higher order independent variable implies that the linear model is not the best fit and that a more complex model is needed to better explain the data

1. Multiple regression models involve fitting a model that includes one or more independent variables to predict a dependent variable.

2.A value of X to a higher power, such as X squared, for an independent variable in a multiple regression model indicates that the relationship between the independent and dependent variables is not linear.

3. If this model produces a higher value of R-squared than a linear model, it means that it is a better fit for the data.

4. However, it does not necessarily imply that the linear model's residual plot is not randomly distributed around the zero line.

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Answer:

Margin of error for 90% C.I: 0.065

Margin of error for 99% C.I: 0.091

Margin of error for 95% C.I: 0.077

Step-by-step explanation:

In this question, for each student, there are only two possible outcomes. Either they use a pencil to take notes, or they do not. Students are independent of each other. So we use the binomial probability distribution to solve this question.

Binomial confidence interval:

In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which

z is the zscore that has a pvalue of \(1 - \frac{\alpha}{2}\).

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

For this problem, we have that:

120 students, so \(n = 120\)

90 responded favorably, so \(p = \frac{90}{120} = 0.75\)

Margin of error for 90% CI:

Here \(\alpha = 0.1\), z is the value of Z that has a pvalue of \(1 - \frac{0.1}{2} = 0.95\), so \(Z = 1.645\).

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}} = 1.645\sqrt{\frac{0.75*0.25}{120} = 0.065\)

Margin of error for 99% CI:

Here \(\alpha = 0.01\), z is the value of Z that has a pvalue of \(1 - \frac{0.01}{2} = 0.995\), so \(Z = 2.325\).

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}} = 2.325\sqrt{\frac{0.75*0.25}{120} = 0.091\)

Margin of error for 95% CI:

Here \(\alpha = 0.05\), z is the value of Z that has a pvalue of \(1 - \frac{0.05}{2} = 0.975\), so \(Z = 1.96\).

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}} = 1.96\sqrt{\frac{0.75*0.25}{120} = 0.077\)

Answer: Margin of error for 99% CI: z=2.575 . input that into the equation and it give you .1017

Step-by-step explanation:

The rear windshield wiper of a car rotated 120 degrees, as shown in the figure. The area cleared by the wiper blade is approximately 205.875 square inches.

The problem states that a car’s rear windshield wiper rotates 120 degrees, as shown in the figure. Our aim is to find the area cleared by the wiper.

The wiper's arm is represented by a line segment and has a length of 14 inches.

The wiper's blade is perpendicular to the arm and has a length of 25 inches.

Angular degree measure indicates how far around a central point an object has traveled, relative to a complete circle. A full circle is 360 degrees, and 120 degrees is a third of that.

As a result, the area cleared by the wiper blade is the sector of a circle with radius 25 inches and central angle 120 degrees.

The formula for calculating the area of a sector of a circle is: A = (θ/360)πr², where A is the area of the sector, θ is the central angle of the sector, π is the mathematical constant pi (3.14), and r is the radius of the circle.

In this situation, the sector's central angle θ is 120 degrees, the radius r is 25 inches, and π is a constant of 3.14.A = (120/360) x 3.14 x 25²= 0.33 x 3.14 x 625= 205.875 square inches, rounded to the nearest thousandth.

Therefore, the area cleared by the wiper blade is approximately 205.875 square inches.

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Answer:

No.

Step-by-step explanation:

An integer is defined as a whole number.

The number given, "1.765", is not a whole number, as it includes the decimal .765. 1.765, as implied by decimal point, is a decimal number.

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Answer:100,000

Step-by-step explanation:

The error in the work is in step 4 where Francisco got the wrong equation, the corrected equation is y = (-x + 6 + 7\(m_1\))/\(m_1\)

The Step 1 which is the slope of MN = \(m_1\)

Step 2: the slope of the line perpendicular to MN =  -1/\(m_1\)

Step 3: Equation of the perpendicular line:

We apply the point-slope form of a line:

y - \(y_1\) = m(x - \(x_1\))

y - 7 = (-1/\(m_1\))(x - 6)

Step 4: The Corrected equation will then be :

y - 7 = -x/\(m_1\) + 6/\(m_1\)

y = -x/\(m_1\) + 6/\(m_1\) + 7

y = (-x + 6 + 7\(m_1\))/\(m_1\)

In conclusion, we can say that y = (-x + 6 + 7\(m_1\))/\(m_1\) is  the equation of the line which is perpendicular to MN.

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Answer:

ED = 31

DT = 20

Step-by-step explanation:

m< ESD = 90-52=38°

the distance ED = 40×tan 38° = 31.25 = 31

ET = 40 x tan (90-38) = 40×tan 52°

= 51.19= 51

the distance DT = 51-31 = 20

(b) The graph of g(x) is the graph of f(x) vertically stretched by a factor of 5.

From the question, we have the following parameters that can be used in our computation:

f(x) = x²

g(x) = (1/5x)²

The graph of g(x) is the graph of f(x) vertically stretched by a factor of 5.

To see this, we can rewrite g(x) as g(x) = (1/5)²(x²) = (1/5²)f(x).

This means that g(x) is equal to f(x) scaled vertically by a factor of 5² = 25.

Therefore, the graph of g(x) will be the same shape as the graph of f(x), but stretched vertically by a factor of 25.

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Answer:

  B. 3x¹¹ +9x⁷ +5x³ −x +4

Step-by-step explanation:

You want to identify the polynomial that has terms written in descending order of their degree.

The degree of a term is the exponent of x in that term. In the given polynomial, the term degrees are 3, 1, 7, 0, 11.

When these are put into descending order, that order is ...

  11, 7, 3, 1, 0

The answer to this question will be the polynomial with terms written in the order of their degree as shown above:

  3x¹¹ +9x⁷ +5x³ −x +4

__

Additional comment

When the exponent of x is 0, the value of the term x^0 is 1. That is why we can say the constant term is a term that has the variable to degree 0.

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The measure of angle D is 45°

Similar triangles have the same corresponding angle measures and proportional side lengths. When two triangles are similar, the corresponding angles are equal.

And also the ratio of corresponding sides of similar triangles are equal.

To know the corresponding angles

side AC is corresponding to side EF, therefore angle D is congruent to angle A

angle D = 45°

OR , we can use the sum of angles In a triangle , which is 180°

angle D = 180 -( 72+63)

= 180 - 135

= 45°

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The value of sine Superscript negative 1 Baseline (StartFraction StartRoot 2 EndRoot Over 2 EndFraction) is π/4 radians or 45 degrees.

The value of sine Superscript negative 1 Baseline (StartFraction StartRoot 2 EndRoot Over 2 EndFraction) is π/4 radians or 45 degrees.What is inverse sine?

The inverse sine function or arc sine function is the inverse function of the sine function. It is defined as follows:If y = sin x, then x = sin-1 y, where x is the angle whose sine is y.

The range of the inverse sine function is from -π/2 to π/2 radians or from -90 to 90 degrees. It is denoted by sin-1 or arcsin.What is the value of sine Superscript negative 1 Baseline (StartFraction StartRoot 2 EndRoot Over 2 EndFraction)?

Given that the value of sine Superscript negative 1 Baseline (StartFraction StartRoot 2 EndRoot Over 2 EndFraction) is to be determined.

Using the formula, sin θ = opposite side/hypotenuse= (StartRoot 2) / 2= 0.707The angle whose sine is 0.707 can be found using a calculator or a unit circle.

The inverse sine of 0.707 is π/4 radians or 45 degrees.

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