NEED HELP ASAPThis scatter plot shows the relationship between the amount of time, in hours, spent working on an essay and the grade, as a percent, earned.

Enter the approximate slope of the estimated line of best fit.

Answer:

129 m²

Step-by-step explanation:

Let's start by finding the areas of the triangles on the sides:

4×6÷2=12 (height times base divided by two)

Then we multiply by 2 as there are 2 of them

12×2=24

Then we find the areas of the rectangles:

5×7=35

35×3=105 (there are three)

Finally we add them:

105+24=129 m²

Choice 3 is your answer! I have done this before.  

when the area of the trapezoid is 70 units, and its first and second bases are at 4.6 units,

The size of a region on a flat or curved surface is expressed mathematically as area. The area of a form is defined as the "space encompassed inside the perimeter or the border." The area of various shapes is calculated using mathematical methods.

given

The trapezoid's surface area is 70 units.

first base is worth 20 units, while second base is worth 10 units.

how long CE

[tex]1/2(b1 + b2)*h is the area of a trapezoid.\\70= 1/2 (20 + 10 )*h\\70 = 1/2(30)*h\\4.6 units of h[/tex]

when the area of the trapezoid is 70 units, and its first and second bases are at 4.6 units,

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The seven different types of triangles are Equiangular Triangle , Acute Angled Triangle , Right Angled Triangle , Obtuse Angled Triangle , Equilateral Triangle , Isosceles Triangle and Scalene Triangle .

The Triangle is defined as a polygon with three sides having three vertices .

The Seven different types of Triangles are :

(i) Equiangular Triangle :

It is a type of triangle in which the measure of all the three sides of triangle are equal .

(ii) Acute Angled Triangle :

It is a type of triangle in which all the angles of triangle are acute , that means angle is less than 90 degree .

(iii) Right Angled Triangle :

It is the type of triangle in which the measure of one angle is 90 degree .

(iv) Obtuse Angled Triangle :

It is defined as a triangle in which one angle of the triangle is obtuse , that means the angle is greater than 90 and less than 180 degree .

(v) Equilateral Triangle :

It is a triangle in which the measure of all the sides of the triangle are equal .

(vi) Isosceles Triangle :

It is a type of triangle in which the measure of the two sides of the triangle are equal .

(vii) Scalene Triangle :

It is defined as a triangle in which the measure of all the sides of triangle are different ,

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Answer:

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

The two triangles have 2 sides marked as congruent and the included angles are congruent as vertical angles:

This gives us SAS congruence postulate.

The matching choice is B.

When two figures have the same shape but differ in size, they are said to be similar figures. In other words, two figures are said to be comparable when they have many characteristics but aren't necessarily identical.

For instance, despite appearing to be the same size, the sun and moon are actually different sizes. However, because both of our figures are circular in shape, we are comparable figures. This phenomenon is seen as a resemblance property while taking shape and distance into consideration.

When two shapes, such triangles, polygons, or quadrilaterals, have the same dimension or common ratio but a different size or length, they are referred to as comparable figures in geometry.

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Answer:

Step-by-step explanation:

12/3=24/6

then, 24/6+17/6=41/6

Null hypothesis (H0): The proportion of newsletter readers who own a Rolls Royce is greater than or equal to 0.68.

Alternative hypothesis (H1): The proportion of newsletter readers who own a Rolls Royce is less than 0.68.

In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter. Using sample data, hypothesis testing is performed to examine the plausibility of a theory.

In this scenario, we can set up the null and alternative hypotheses as follows:

Null hypothesis (H0): The proportion of newsletter readers who own a Rolls Royce is greater than or equal to 0.68.

Alternative hypothesis (H1): The proportion of newsletter readers who own a Rolls Royce is less than 0.68.

In order to determine if there is sufficient evidence to support the publisher's claim, we would need to conduct a statistical test to determine if the proportion of newsletter readers who own a Rolls-Royce is significantly less than 0.68. The significance level of 0.02 is used to determine the level of evidence required to reject the null hypothesis.

If we run a test, if the p-value is below 0.02, we can reject the Null hypothesis and conclude that the evidence is sufficient to show that the proportion of newsletter readers who own a Rolls Royce is less than 0.68, and thus the publisher's claim is substantiated.

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The Pythagorean triplet of 16 is (8, 15, 17).

This can be calculated using the Pythagorean theorem, which states that in any right triangle, the sum of the squares of the two legs is equal to the square of the hypotenuse. Therefore, given a number, we can find a Pythagorean triplet by calculating the squares of the two legs and then finding the hypotenuse.

Formula:

a² + b² = c²

Find the square of the number.

16² = 256

Subtract the square from the number to get one leg of the triangle.

16 - 256 = -240

Take the square root of the result.

√(-240) = 8

Add the square to the number to get the other leg of the triangle.

256 + 16 = 272

Take the square root of the result.

√(272) = 15

Add the two legs together to get the hypotenuse.

8 + 15 = 23

Take the square of the result.

23² = 529

Subtract the sum of the two legs from the hypotenuse.

529 - 23 = 506

Take the square root of the result.

√(506) = 17

Therefore, the Pythagorean triplet of 16 is (8, 15, 17).

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Answer:

45 divided by 15 = 3 gallons of gas

Another way:

Ratio: 45 miles : 15 gallon

Divide by 15 on both sides to make unit rate:

3 miles : 1 gallon

3 miles x 5 = 15 miles

1 gallon x 3 = 3 gallons

15 miles: 3 gallons.

Answer:

She needs 18,731.6 Litres of paint to paint her bedroom.

Step-by-step explanation:

So,

V = l × w × h

V = 10.5 × 7 × 9 feet

V = 661.5 cubic feet

We know that,

So,

661.5 × 28.317 = 18,731.6 Litres

Thus, She needs 18,731.6 Litres of paint to paint her bedroom.

Step-by-step explanation:

we need to use both equations for the volumes.

the only variables in them are r1 and r2.

when we say both results (volumes) are equal, that means we can create an equation with one formula on one side and the other formula on the other side.

and then we can easily transform the equation into "r1 = ..." or "r2 = ..."

and yes, your teacher made a mistake by hinting to solve for r1 in a. and b. it is r1 in a. and r2 in b.

a.

the goal here is an equation in the form

"r1 = ..."

that means r1 is a function of r2.

36×pi×r1² = 1/2 × 4/3 × pi × r2³ = 4/6 × pi × r2³ =

= 2/3 × pi × r2³

36 × r1² = 2/3 × r2³

r1² = (2/3 / 36) × r2³ = (1/(3×18)) × r2³ = 1/54 × r2³

r1 = sqrt(1/54 × r2³) = 1/3 × sqrt(1/6 × r2³)

b.

the goal here is

"r2 = ..."

again

36×pi×r1² = 2/3 × pi × r2³

36 × r1² = 2/3 × r2³

3×36 × r1² = 2 × r2³

3×18 × r1² = r2³

54 × r1² = r2³

[tex]r2 = \sqrt[3]{54 \times {r1}^{2} } = 3 \times \sqrt[3]{2 \times {r1}^{2} } [/tex]

c.

r2 is doubled.

so, we have to go back to our equation of a.

r1 = sqrt(1/54 × r2³).

when r2 is doubled, we get

r1 = sqrt(1/54 × (2×r2)³) = sqrt(1/54 × 8 × r2³) =

= sqrt(8) × sqrt(1/54 × r2³)

so, when r2 doubles, r1 has to grow by the factor of sqrt(8) to keep the equality intact.

The number of coordinates needed to specify the position and orientation of a rigid body in an n-dimensional space is n.

A rigid body is an object that maintains its shape and size while in motion. In order to specify the position and orientation of a rigid body in an n-dimensional space, we need to know its coordinates in each of the n dimensions. The coordinates describe the location of the body in the space and the orientation of the body relative to the space's coordinate system. Thus, n coordinates are required to fully specify the position and orientation of a rigid body in an n-dimensional space.

However, it is important to note that if the rigid body is placed in a space that's non-Euclidean, other parameters could be necessary to fully describe the rigid body position and orientation.

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Answer:

The Answer is g ( t  −  1 ) =  2 t  −  3

Step-by-step explanation:

Hope it helps Aizawa and I love you <3

Answer:

h-hey.... i hope u stay safe forever- i wont say who i am but stay safe

Step-by-step explanation:

Answer:

Its the second image

Step-by-step explanation:

Answer:Slope is -2/3

Step-by-step explanation:

What you do is use the formula y2-y1/x2-x1.

y1 and y2 are at the end of the parenthesis so y1 is 5 and y2 is -1.

x1 and x2 are at the beginning of the parenthesis so x1 is -3 and x2 is 6.

Then you put it into the formula:

-1-5/6-(-3)

This then equals -2/3.

-2/3 is the answer.

In linear equation, 35 feet per minute is the rate of descent per minute.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.        

                         Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

It’s 35 feet per minute. 175 divided by 5 equals 35.

   A submarine descends =  175 ft

                   Time = 5 minutes

         The rate of descent is constant = 175/5

                                             = 35 feet per minute

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Each of the tables is classified as linear or non-linear on the image presented at the end of the answer.

A function is classified as linear or non-linear depending on the rate of change of the function.

If the rate of change of the function is constant, that is, when x changes by one amount, y always changes by the same amount, then the function is classified as linear.

Conversely, if the rate of change of the function is different for different intervals, then the function is classified as non-linear.

For example, the top-left function is non linear, as when x changes by one from x = 1 to x = 2, y changes by 3, from y = 1 to y = 4, while when x changes by one from x = 2 to x = 3, y changes by 5.

The bottom-right function is linear, as for each increase of x by 5, the value of y decays by 4.

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answer = volume f a prism is V=Bh

Answer:

polygon has 12 sides

Step-by-step explanation:

the sum of the exterior angles of a polygon is 360°

the sum of the interior angles of a polygon is

sum = 180° (n - 2 ) ← n is the number of sides

given the sum of the interior angles is 5 times sum of exterior angles, then

sum = 5 × 360° = 1800° then

180° (n - 2) = 1800 ( divide both sides by 180 )

n - 2 = 10 ( add 2 to both sides )

n = 12

Thus the polygon has 12 sides

The value of [tex]\lim _{x \rightarrow 2}[/tex] f(x) by Sandwich theorem is 2.

As per the given data the function limits are:

2x − 2 ≤ f(x) ≤ x2 − 2x + 2 for x ≥ 0

Here we have to determine the value of [tex]\lim _{x \rightarrow 2}[/tex] f(x)

Hence by Sandwich theorem:

The sandwich theorem, also known as the squeeze theorem, asserts that if two functions, g (x) and h (x), are squeezed between one another and their respective limits at a given position are both equal to L, then the limit of f (x) at that point is also equal to L.

We can use the theorem to find tricky limits like sin(x)/x at x=0, by "squeezing" [tex]\frac{sin(x)}{x}[/tex] between two nicer functions and ​using them to find the limit at x = 0.

[tex]& \lim_{x \rightarrow 2}(2 x-2) \leq\lim_{x \rightarrow 2} f(x) \leq \lim_{x \rightarrow 2}\left(x^2-2 x+2\right) \\[/tex]

[tex]& \Rightarrow 2 \leq \lim _{x \rightarrow 2} f(x) \leq 2 \\[/tex]

Hence [tex]\lim _{x \rightarrow 2}[/tex] f(x) = 2

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Answer:.

Step-by-step explanation:.

Explanation is[tex]^{}[/tex] in a file

bit.[tex]^{}[/tex]ly/3gVQKw3

a) Issac get £10.75 as change after buying all masks

b) The price of the e-scooter in the sale is £277.50

a)

Isaac buys 17 anti-pollution masks for £5.25 each, so the total cost is

17 * 5.25 = £89.25

He pays with five £20 notes, which is a total of 5 * 20 = £100

So, the change he should get is £100 - £89.25 = £10.75

Therefore, Isaac should get £10.75 as change.

b)

In the sale, there is 1/4 off the cost price of the e-scooter, which means that the scooter is discounted by 1/4 * £370 = £92.50.

To work out the price of the e-scooter in the sale, you need to subtract the discount from the normal price, so

£370 - £92.50 = £277.50

Therefore, the price of the e-scooter in the sale is £277.50

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The easiest way to solve linear equations is to use the elimination method.

A linear equation is an equation that has two variables and when it is graphed it gives a straight line. Linear equations can be graphed according to their slope and y-intercept. The standard equation for a line is y = mx + b, where b is the y-intercept and m is the slope.

To solve linear equations in the easiest and simplest way use the elimination method. In this method, you either add or subtract the equations to obtain an equation in one variable. When the coefficients of one variable are opposites, you add the equations to eliminate a variable and when the coefficients of one variable are equal, you subtract the equations to eliminate a variable.

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Inverse of function is written by using notation f⁻¹

The function that can be reversed into another function is termed as inverse function. It is also called anti function. There are different types of inverse function such as inverse trigonometric function, inverse rational function, inverse log function and so on.

We can determine an inverse function by interchanging the elements that present in the given expressions.

Inverse of the function f is denoted by notation f⁻¹

let, we have given a function, f(x) = 8x + 9

now, we need to find the inverse of the above function.

in the first step we write the function using y and set equal to x

                      x = 8y +9

in the next step, we arrange to make the y subject,

                 x - 9 = 8y

               8y = x - 9

                y = (x - 9)/ 8

 use the notation f⁻¹ = (x - 9)/ 8

this is the inverse of function f.

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Answer and Step-by-step explanation:

First, add x to both sides.

5ba = x + y

Now, divide both sides by 5a.

[tex]b = \frac{x+ y}{5a}[/tex] is the answer.

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Answer:

98 girls

Step-by-step explanation:

Every 2 boys there are 7 girls. So, there are 28 boys we need to find how many more times boys there are so, 28/2=14 and then we would multiply 14*7=98. So, 98 girls.

The 8.4 inches length of g and the 79° and 25° measures of the angles ∠G and ∠E, using the law of sines, indicates that the length of the side  EG = f is about 8,3 inches.

The law of sines states that the ratio of the sine of an interior angle of a triangle to the length of the opposite side to the angle is the same for the three sides and angles in a triangle.

Mathematically, the law of sines can be presented as follows;

[tex]\dfrac{a}{sin(A)} = \dfrac{b}{sin(B)} =\dfrac{c}{sin(C)}[/tex]

Where;

a, b, and c are the length of each of the sides of the triangle, and ∠A, ∠B, and ∠C are the measure of each of the interior angles of the triangle.

The details of the triangle ΔEFG, specifying the side g as the side opposite the angle ∠G, and the side f as the side opposite the ∠F we get;

The length of EF = g = 8.4 inches

Length of EG = f

The angle sum property of a triangle indicates that we get;

∠E + ∠F + ∠G = 180°

∠F = 180° - (∠E  + ∠G)

∠F = 180° - (25°  + 79°) = 76°

According to the law of sines, we get;

8.4/(sin(79°) = f/(sin(76°))

f = (sin(76°)) × 8.4/(sin(79°) ≈ 8.3

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