y = -4× - 5
y = -4× + 5​

Answer:

4 1/3 of her hair

Step-by-step explanation:

Just add 2 1/6 + 2 1/6 and there you go

There is the total amount of her hair she cut

Answer:

y=-3/2x+13

Step-by-step explanation:

Convert to slope-intercept form (y=mx+b):

-3x+2y=10

-3x-10+2y=0

-3x-10=-2y

-3/2x-5=y

y=-3/2x-5

Parallel lines have the same slope, so the slope of the equation will be m₁=m₂ where -3/2=-3/2

Solving for b, the y-intercept, we get:

y=-3/2x+b (Equation so far)

7=-3/2(4)+b [Plugging in (4,7)]

7=-12/2+b

7=-6+b

13=b

Therefore, the equation of the line that is parallel to the line -3x+2y=10 and goes through the point (4,7) is y=-3/2x+13

The test is conducted at a 5% significance level, and the p-value is 0.01. Since the p-value (0.01) is less than the significance level (0.05), the editor should reject the null hypothesis (H0) and conclude that the proportion of accepted publications of writers being recommended for hire is less than 0.8.

Based on the data and the hypothesis testing, the magazine editor should conclude that the proportion of accepted publications of writers being recommended for hire is less than 0.8. This is because the p-value is 0.01, which is less than the significance level of 0.05. This means that there is strong evidence to reject the null hypothesis (h0) and accept the alternative hypothesis (ha). Therefore, the editor should not offer a more permanent position to the 20 candidates who have not been accepted for publication at an acceptable rate. Instead, they should focus on the remaining 30 candidates who have a higher proportion of accepted publications and are more likely to meet the standards of the magazine. By using a data-informed approach, the editor can make more objective and effective hiring decisions and ensure that the quality of the magazine remains high.
The magazine editor is using a data-informed approach to evaluate freelance writers for a more permanent position. They consider 50 candidates, and out of those, 20 have not been accepted for publication at an acceptable rate (80% acceptance over 2 years). The hypotheses being tested are:
H0: The proportion of accepted publications of writers being recommended for hire is equal to 0.8.
Ha: The proportion of accepted publications of writers being recommended for hire is less than 0.8.
This suggests that the editor may need to refine their selection process to improve the quality of the freelance candidates they consider for permanent positions.

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Answer:

1, 2, 5, 12, 13

Step-by-step explanation:

∠1 = 90 is given, which is a right angle

∠3 = 90 as well because ∠1 and ∠3 are vertically opposite

∠3 = ∠8, because ∠1 and ∠8 are same side exterior angles, which are the same

Therefore ∠3 must be congruent to ∠8  

The spillage refer to Cyber Awareness Challenge 2022 is explained below.

The Cyber Awareness Challenge 2022 is an important event that focuses on raising awareness about the dangers and risks associated with the use of technology and the internet.

In this context, spillage refers to the accidental or unintentional release of sensitive information. This can be caused by a variety of factors, including human error, technical glitches, and malicious attacks.

In addition, the challenge will explore the consequences of spillage, such as identity theft, financial loss, and reputational damage. This is why it is so important to take the challenge seriously and to understand the importance of cyber awareness and security.

By participating in the Cyber Awareness Challenge 2022, students will gain valuable skills and knowledge that will help them protect themselves and their information in the digital world

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Answer:

Step-by-step explanation:

See image

Reason: Given

-------------------------

Reason: Perpendicular lines form right angles.

-------------------------

Reason: All right angles are congruent.

------------------------

Reason: Given

-----------------------

Reason: Given

--------------------

Reason: HL

Answer:

If each of the dimensions was enlarged by 3 units then the new length would be 5 and the new width would be 6. To find the area of the triangle we use the formula: A = L x W ÷ 2.


6 x 5 = 30ft2
30 ÷ 2 = 15ft2


Therefore the new area of the triangle would be 15ft2.

Step-by-step explanation:

Have a great rest of your day
#TheWizzer

Answer:

Brainliest this first then I will help you

Step-by-step explanation:

Answer:

ok

Step-by-step explanation:shheshh

It should be noted that the values of x and y in the trapezium will be

x=118

y= 35

A trapezoid, also known as a trapezium, is a closed, flat object with four straight sides and one pair of parallel sides. A trapezium's parallel sides are known as the bases, while its non-parallel sides are known as the legs. A trapezium might have parallel legs as well.  A trapezium is a quadrilateral with one parallel pair of opposite sides.

Based on the information, x will be:

= 180-62

= 118

y will be:

= 180-145=35

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This represents the direction and degree of rotation utilised to make the image, which is 90 degrees anticlockwise.

When an item or form is rotated about a fixed point, generally the origin or a specified point in the plane, the amount of rotation that takes place is referred to as the degree of rotation. Angles are measured in degrees, where one full rotation equals 360 degrees. The amount of angle shift, expressed in degrees, that occurs when an item or shape is rotated is known as the degree of rotation. A shape has been turned a quarter of a full rotation anticlockwise, for instance, if it is rotated 90 degrees in that direction. Similar to this, a form has completed one-half of a full rotation if it is rotated 180 degrees.

given

The graph suggests that the image was rotated 90 degrees anticlockwise and in the other manner to make.

Compare the figure's initial placement (the grey triangle) to its final placement to see this (the red triangle).

One of the vertices on the grey triangle is pointing upward, and the other two are pointing to the right and left.

The red triangle's up-pointing vertex remains after the transformation, but the other two vertices now point down and up-left, respectively.

This represents the direction and degree of rotation utilised to make the image, which is 90 degrees anticlockwise.

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Answer:

-2x^2+12x

Step-by-step explanation:

Answer. I think is A

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

add 4 plus 4 then omg watch this you get 8 abracadabra....

you're welcome

8

Step-by-step explanation:

The value of box/ square is 5, value of circle is 3 and the value of star is 6.

Let box/ square be denoted by x

let the circles be denoted by y

let the stars be denoted by z

now, let us make three linear equation based on the diagram provided

1. x + x = 10

2. y + z= 9

3. y+ x = 8

solving equation 1

x + x = 10

2x = 10

x = 5

Putting the value of x in equation 3

y + x=8

y + 5 = 8

y = 3

Putting the value of y in equation 2

y + z = 9

3 + z= 9

z = 6

Hence , The value of box/ square is 5, value of circle is 3 and the value of star is 6.

A linear equation is one in which the variable's maximum power is always 1. A one-degree equation is another name for it. A linear equation in one variable has the conventional form Ax + B = 0. In this equation, x is a variable, A is a coefficient, and B is constant. A linear equation in two variables has the conventional form Ax + By = C.

A linear equation is an equation with the maximum degree of one. This means that in a linear equation, no variable has an exponent greater than 1. A linear equation's graph is always a straight line.

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663.

i found out what 35% of 1020 is and then subtracted that by 1020.

The width of each class interval from the given grouped frequency distribution table is 9.

In a frequency distribution, the numerical width of a class is referred to as the class interval. Data is organised into classes in a grouped frequency distribution. The class interval is determined by the difference between the upper and lower class limits.

The give class intervals are 20-29, 30-39, 40-49 and 50-59.

The size, or width, of a class interval is the difference between the lower and upper class boundaries and is also referred to as the class width, class size, or class length.

So, class width = Upper class - Lower class

29-20=9

39-30=9

Therefore, the width of each class interval is 9.

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The skateboarder is 6 ft from the bottom of the hill after √(3.5) seconds.

To find the time when the skateboarder is 6 ft from the bottom of the hill, we need to solve the equation -4x² + 20 = 6.

Subtracting 6 from both sides: -4x² + 20 - 6 = 6 - 6.

Simplifying: -4x² + 14 = 0.

To solve this quadratic equation, we can divide both sides by -4: (-4x² + 14) / -4 = 0 / -4.

Simplifying further: x² - 3.5 = 0.

To isolate x², we add 3.5 to both sides: x² - 3.5 + 3.5 = 0 + 3.5.

Simplifying: x² = 3.5.

To solve for x, we take the square root of both sides: √(x²) = √(3.5).

Simplifying further: x = ±√(3.5).

Since the skateboarder cannot have a negative time value, we disregard the negative solution.

Therefore, the skateboarder is 6 ft from the bottom of the hill after √(3.5) seconds.

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The probable question may be:

The quadratic function d = -4x² + 20 models a skateboarder's distance, in feet, from the bottom of a hill x seconds after the skateboarder starts moving down the hill. After how many seconds is the skateboarder 6 ft from the bottom of the hill? Put your answer in simplified radical form (do not include any decimals in your answer) (Hint: There will only be one answer for the question, since one of your answers will not make logical sense). Show all work!

The area of the quadrilateral given, can be found to be 84 square units

To find the area of the quadrilateral ABCD with vertices A(-8, 5), B(-2, -5), C(8, 1), and D(2, 11), we can divide it into two triangles, use the distance formula to find the lengths of the sides of the triangles:

Distance formula: d = √((x2 - x1)² + (y2 - y1)²)

AB = √((-2 - (-8))² + (-5 - 5)²) = √136

AC = √((8 - (-8))² + (1 - 5)²) = √272

Find the area of triangle ABC:

Area ABC = √(31.485 x (31.485 - √136) x (31.485 - √136) x (31.485 - √272)) = 42

Find the area of triangle ACD:

Area ACD = √(31.485 x (31.485 - √136) x (31.485 - √136) x (31.485 - √272)) = 42

Now, add the areas of the two triangles to find the area of the quadrilateral ABCD:

Area ABCD = 42 + 42

Area ABCD = 84 square units

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Answer: MathPapa

Step-by-step explanation:

Just put it there. Since the square is there, you put two of those side by side and then multiply all the numbers. Then you solve normally. (2k-1)(2k-1)=9

Based on the sample data and the hypothesis test, there is sufficient evidence to support the claim that the population mean μ is greater than 29 at the significance level of 0.05.

What is the mean and standard deviation?

The standard deviation is a summary measure of the differences of each observation from the mean. If the differences themselves were added up, the positive would exactly balance the negative and so their sum would be zero. Consequently, the squares of the differences are added.

To test the claim about the population mean μ at the level of significance α, we can perform a one-sample t-test.

Given:

Claim: μ > 29 (right-tailed test)

α = 0.05

σ = 1.2 (population standard deviation)

Sample statistics: x = 29.3 (sample mean), n = 50 (sample size)

We can follow these steps to conduct the hypothesis test:

Step 1: Formulate the null and alternative hypotheses.

The null hypothesis (H₀): μ ≤ 29

The alternative hypothesis (Hₐ): μ > 29

Step 2: Determine the significance level.

The significance level α is given as 0.05. This represents the maximum probability of rejecting the null hypothesis when it is actually true.

Step 3: Calculate the test statistic.

For a one-sample t-test, the test statistic is given by:

t = (x - μ) / (σ / √(n))

In this case, x = 29.3, μ = 29, σ = 1.2, and n = 50. Plugging in the values, we get:

t = (29.3 - 29) / (1.2 / √(50))

= 0.3 / (1.2 / 7.07)

= 0.3 / 0.17

≈ 1.76

Step 4: Determine the critical value.

Since it is a right-tailed test, we need to find the critical value that corresponds to the given significance level α and the degrees of freedom (df = n - 1).

Looking up the critical value in a t-table with df = 49 and α = 0.05, we find the critical value to be approximately 1.684.

Step 5: Make a decision and interpret the results.

If the test statistic (t-value) is greater than the critical value, we reject the null hypothesis; otherwise, we fail to reject the null hypothesis.

In this case, the calculated t-value is approximately 1.76, which is greater than the critical value of 1.684. Therefore, we reject the null hypothesis.

hence, Based on the sample data and the hypothesis test, there is sufficient evidence to support the claim that the population mean μ is greater than 29 at the significance level of 0.05.

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Answer: Website A is cheaper, by an amount of, £0.29.

Step-by-step explanation: Here, the problem is simply about, initially adding, and then finding difference between the added results.

That is,

For Website A,

Net Cost = £49.95 + £4.39

= £54.34

Similarly,

For Website B,

Net Cost = £47.68 + £6.95

= £54.63

Therefore, we can clearly see,

Website A is cheaper by,

£(54.63 - 54.34) = £0.29

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The probability would be 4/8, 1/2, or 50%.

Answer:

f(3) = -9

Step-by-step explanation:

Given that,

→ f(x) = -7x + 12

Then the value of f(3) will be,

→ f(3) = -7(3) + 12

→ f(3) = -21 + 12

→ [ f(3) = -9 ]

Hence, the value is -9.

False, r2adj is the adjusted coefficient of determination that can exceed r2 if there are several weak predictors.

R2adj is the adjusted coefficient of determination and takes into account the number of predictors in the model. It penalizes the addition of insignificant predictors that do not improve the model fit.

R2, on the other hand, is the coefficient of determination and measures the proportion of variability in the dependent variable that is explained by the independent variables in the model.

It is possible for R2 to increase when weak predictors are added, but this increase is not necessarily mean that the predictors do not have a significant impact on the outcome.

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The question is -

R2adj can exceed R2 if there are several weak predictors. true or false?

Answer:

595

Step-by-step explanation:

2 positions for 35 employees.

\(C(n) = (\frac{n}{k}) = \frac{n!}{(k!(n-k)!)}\)

Where n = 35, total number of employees and k = 2, how many spots available

\(\frac{35}{2} = \frac{35!}{2!(n-k)!} = \frac{35*34}{2 * 1} = 595\)

Answer:

595

Step-by-step explanation:

Answer:

70 inches

Step-by-step explanation:

the width of the original rectangle:

48/2 - 13 = 24 - 13 = 11

the new rectangle:

length: 13

width: 2(11) = 22

perimeter: 2(13+22) = 2(35) = 70

The perimeter of the new rectangle is 70 inches.

The area of Rectangle is length times of width.

The perimeter of a rectangle is given by the formula P = 2(l + w)

where P is the perimeter, l is the length, and w is the width.

The first rectangle has a perimeter of 48 inches and a length of 13 inches.

48 = 2(13 + w)

24 = 13 + w

w = 11

So the first rectangle has a length of 13 inches and a width of 11 inches.

The second rectangle has the same length of 13 inches and twice the width of the first rectangle, which means it has a width of 22 inches.

P = 2(13 + 22)

= 2(35)

= 70

Therefore, the perimeter of the new rectangle is 70 inches.

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Answer:

A) 1.3 represents the number of foodbank users in thousands in the year 2006

B) 0.81 per year

C) 124.79%

D) the doubling rate is less than a year.

Step-by-step explanation:

A) We are given N(t) = 1.3e^(0.81t) where t in thousands the number of years since 2006. N(t) is in thousands

Thus, in 2006,t = 0.

So, N(0) = 1.3e^(0.81 × 0)

N(0) = 1.3

Thus,1.3 represents the number of foodbank users in thousands in the year 2006

B) From the question, we see that the continuous growth rate is 0.81t.

This is 0.81 per year

C) The exponent of the growth rate is e^(0.81t).

Thus gives; 2.2479^(t)

This means the annual growth factor for each year is 2.2479.

Thus,annual percent growth rate is;

(2.2479 - 1) × 100% = 124.79%

D) From C above we saw that the annual percent growth rate is more than 100%. This means that it takes less than a year for the number of users to be doubled.. Thus, the doubling rate is less than a year.

100 square centimeters are in the area of the largest possible inscribed triangle having one side as a diameter of circle.

What is the area?

A two-dimensional figure's area is the amount of space it takes up. In other terms, it is the amount that counts the number of unit squares that span a closed figure's surface. In general, square units such as square inches, square feet, etc. are used as the standard unit of area.

Base = 2r = 2*10 = 20 cm

Height = r=  10 cm

Area =  1/2 * base * height

        =   1/2 * 20 * 10

        =   100 square centimeters

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After answering the given query, we can state that  Consequently, the rectangle combined figure's area is 469 cm².

In Euclidean mathematics, a rectangle is a parallelogram with four small angles. Another way to characterize it is as a basic rule-following hexagon or one with equal angles. Another choice for the parallelogram is a straight angle. Four of the vertices in a rectangle have the same length.

Four vertices with 90° angles and identical parallel sides make up a quadrilateral with a rectangle-shaped cross section. This leads to it being known as a "equirectangular rectangle" at times. A rectangle is occasionally referred to as a parallelogram because its two edges are so equal and parallel to one another.

Let's start by calculating the rectangle's area:

Rectangle area equals length times breadth

Size = 22 centimetres

17 centimetres wide

Rectangle's area is equal to 22 × 17 cm, or 374 cm².

Next, let's calculate the triangle's area:

Area of trapezoid = base x height x half.

Base: 19 centimetres.

Size equals 10 centimetres (since the left vertical leg is 10 cm below the top right vertex of the rectangle)

Triangle's area is 1/2 x 19 cm x 10 centimeter, or 95 cm².

the combined figure's overall surface area

Area of rectangle plus area of triangular equals total area.

Total space equals 469 cm² (374 cm² plus 95 cm²).

Consequently, the combined figure's area is 469 cm².

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