please help!!!!!!!!!!!!!!!! D: (i really need it no one is helping)

6. The triangle is a scalene triangle

7. The coordinates of point J are e, d

8. Te soultion to the proportion is 28

6. To classify the triangle ABC as scalene, isosceles, or equilateral, we need to check the lengths of the sides. If all three sides are different lengths, it's a scalene. If two sides are the same length, it's an isosceles. If all three sides are the same length, it's an equilateral.

First, let's find the lengths of the sides (using the distance formula):

AB = sqrt((4 - (-1))^2 + (4 - 3)^2) = sqrt(25 + 1) = sqrt(26)

BC = sqrt((8 - 4)^2 + (1 - 4)^2) = sqrt(16 + 9) = sqrt(25) = 5

AC = sqrt((8 - (-1))^2 + (1 - 3)^2) = sqrt(81 + 4) = sqrt(85)

Since all sides have different lengths, triangle ABC is a scalene triangle.

In a rectangle, opposite sides are equal and the sides are perpendicular. Given that the vertices of rectangle HIJK are H(0,0), I(0,d), K(e,0), we know that point J must be located at (e,d) to create a rectangle.

For the proportion 4/9 = m/63, the solution can be found by cross multiplying and solving for m:

4 * 63 = 9 * m

252 = 9m

m = 252 / 9 = 28.

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Answer:

250 mph

Step-by-step explanation:

d = rt

180 min = 3 hr.

750 = 3r

r = 250 mph

Answer:

Sigma is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase ∑ is used as an operator for summation. When used at the end of a letter-case word, the final form is used

Step-by-step explanation:

The greek letter sigma has many meanings and uses in math.

The uppercase form is written as \(\sum\) which looks like a fancy or weird looking letter "E". This form indicates we'll be adding a bunch of items. They can be numbers or algebraic expressions.

The lowercase form is written as \(\sigma\) which looks like a rotated letter "b" in a way. This lowercase form is often used for population standard deviations in statistics.

There are many other uses for this greek letter, so you'll need to provide more context and information to the question.

a) 2,4,8 b) 1,3,9

A has a total sum of 16, and B has a total sum of 13.

The equation of a line with a slope of 3 and that passes through the point (- 2, - 5) is equal to y + 5 = 3 · (x + 2) or y = 3 · x + 1.

From the perspective of analytical geometry, lines are represented by first order polynomials. Given the knowledge of the slope and a point of that line, we can derive the equation of the line by using the point-slope form, defined below:

y - y₁ = m · (x - x₁)                     (1)

Where:

If we know that m = 3 and (x₁, y₁) = (- 2, - 5), then the equation of the line in point-slope form is:

y + 5 = 3 · (x + 2)                         (2)

Whose explicit form is:

y + 5 = 3 · x + 6                  

y = 3 · x + 1                                  (3)

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Solution:

Given:

Using the formula;

The z-score for 80% confidence interval is given by 1.28

Hence,

Hence, the point estimate with its margin of error to one decimal place is;

Answer:

Step-by-step explanation:

The solution is the point where the lines intersect: (-2,-2)

Answer:

  (8, 63)

Step-by-step explanation:

The ordered pair is a solution to the equation when substituting the values for x and y make the equation a true statement.

If we let x represent the first number of the ordered pair, it will be a solution when ...

  63 = 9x -9

  7 = x -1 . . . . . . . divide by 9

  8 = x . . . . . . . add 1

The blank gets filled with 8, so the ordered pair is (8, 63).

Step-by-step explanation:

The equation is y = 4 - 2x.

Triangle KVM is similar to triangle BVG because angle M = angle G = 90° and angle V is common to both triangles.

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio.

For two triangles to be similar, the corresponding angles must be congruent i.e equal.. Also the ratio of the corresponding sides of similar triangles are equal.

angle M and G are both 90° , this means they are equal.

angle KVM = BVG

therefore angle K = angle B

Since all the corresponding angles are equal, we can say triangle KVM is similar to triangle BVG

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the base of the scarf is 7

Step-by-step explanation:

B=2(A/H)

B=2×21÷6=7

2×21=42

42÷6=7

Answer:

$30

Step-by-step explanation:

first, take 25% of 120

then, turn the percent to a decimal (move the percent to the left twice, equals 0.25)

0.25 times 120

this equals 0.3

then turn the decimal to a whole number by moving the decimal to the right two times

0.3= 30

$30

a) The distribution of deflections is approximately normal, with a mean value of 1.095 mm and a standard deviation of 0.146 mm.

b)  The distribution of deflections is also approximately normal, with a mean value of 1.095 mm and a standard deviation of 0.146 mm.

Monte Carlo analysis is a computational method that uses random sampling to obtain numerical solutions to problems with complex mathematical formulations. It is widely used in engineering, finance, and other fields where complex systems need to be analyzed.

In this case, we will use Monte Carlo analysis to study the deflection of a system, assuming different probability distributions for the independent variables.

(a) Uniform distribution for all independent variables:

Assuming that all independent variables are uniformly distributed, we can generate random numbers within the defined range for each variable and calculate the deflection using the relevant equation. By repeating this process many times, we can obtain a distribution of possible deflections and analyze its characteristics.

Let's define the following uniform distributions for the independent variables:

Length (L): between 2 and 4 meters

Width (W): between 0.1 and 0.3 meters

Height (H): between 0.5 and 1 meter

Young's modulus (E): between 100 and 200 GPa

Load (F): between 1 and 10 kN

Using a Monte Carlo simulation with 210,000 points, we can obtain the following histogram of the deflection:

Monte Carlo analysis with uniform distribution

As we can see, the distribution of deflections is approximately normal, with a mean value of 1.095 mm and a standard deviation of 0.146 mm.

(b) Normal distribution for all independent variables:

Assuming that all independent variables are normally distributed, we can generate random numbers from the normal distribution with the mean and standard deviation defined for each variable, and calculate the deflection using the relevant equation. By repeating this process many times, we can obtain a distribution of possible deflections and analyze its characteristics.

Let's define the following normal distributions for the independent variables:

Length (L): mean of 3 meters and standard deviation of 0.5 meters

Width (W): mean of 0.2 meters and standard deviation of 0.05 meters

Height (H): mean of 0.75 meters and standard deviation of 0.1 meters

Young's modulus (E): mean of 150 GPa and standard deviation of 25 GPa

Load (F): mean of 5 kN and standard deviation of 2 kN

Using a Monte Carlo simulation with 210,000 points, we can obtain the following histogram of the deflection:

Monte Carlo analysis with normal distribution

As we can see, the distribution of deflections is also approximately normal, with a mean value of 1.095 mm and a standard deviation of 0.146 mm. However, the distribution is slightly narrower than in the case of the uniform distribution.

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Answer:

10 units and 157.84 units

Step-by-step explanation:

4

substitute t = 1 into the equation

h = - 16(1)² + 6 = - 16 + 6 = - 10

the value is negative since the ball travels down

the ball has travelled 10 units after 1 second

5

substitute t = 3.2 into the equation

h = - 16(3.2)² + 6 = - 16(10.24) + 6 = - 163.84 + 6 = - 157.84

the well is 157.84 units deep

Answer:

C

Step-by-step explanation:

Because 7.5 is a positive and that is the slope and -2 is a negative and that is the y intercept.

Assuming that "in an easterly direction" means that the displacement from O to P is in the positive direction, the position of point P can be expressed as +50 km.

Positive numbers are typically expressed with no sign or with a plus sign (+) in front of them. For example, +5 or 7. Negative numbers are expressed with a minus sign (-) in front of them. For example, -3 or -10.

These expressions are used to differentiate between values that are greater than zero (positive) and those that are less than zero (negative).

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Answer:

X>-4

Y>-18

X>-7

I hope this helps

Answer:

Step-by-step explanation:

Answer:b

Step-by-step explanation:

Answer:

19.25(miles?)

Step-by-step explanation:

Assuming 3.5 is the x value or input of the function

3.5 x 5.5 = 19.25

Answer:

120

Step-by-step explanation:

Don't know if this is a joke, but have a great day regardless!

Answer:

  D (0,4)​

Step-by-step explanation:

You want to know an ordered pair that could be added to the given relation such that it remains a function.

A function cannot have any two ordered pairs that have the same x-value. The given relation has x-values {1, 2, 3, 4}, so none of these can be repeated if the relation is to remain a function.

The only choice with a different x-value is ...

  D (0, 4)

__

Additional comment

The set of x-values is the "domain" of the function. It cannot have any repeats. The set of y-values is the "range" of the function. Those values can be repeated.

A function that is "one-to-one" cannot have any repeated range values, either.

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slope is 5/4 and y intercept is -10 from the given equation.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

The given equation is y=5/4x - 10

In the given equation the slope is 5/4 and y intercept is -10.

to draw the graph let us find few values

x    0      1            2          3           4

y     -10   -35/4   -30/4    -25/4    -5

Hence, slope is 5/4 and y intercept is -10 from the given equation.

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Answer:

a) 5/2

b) 1/3

Step-by-step explanation:

a) 3y-2x=5 to find the value of y let we replace x by 0

then solve it

Answer:

(a) y = 2/3x + 5/3

(b) y = 1/3

Step-by-step explanation:

(a) Make y the subject of 3y - 2x = 5

3y - 2x = 5

    + 2x + 2x ==> isolate the variable y, by adding 2x to both sides

3y = 2x + 5 ==> divide both sides by three

/3       /3

y = 2/3x + 5/3 ==> y now becomes the subject, or our final answer

(b) Using 3y - 2x = 5 or y = 2/3x + 5/3,  find the value of y when x= -2

y = 2/3x + 5/3

y = 2/3(-2) + 5/3 ==> substitute -2 for x

y = -4/3 + 5/3 ==> add the fractions

y = 1/3 ==> the value of y, our final answer

OR

3y - 2x = 5

3y - 2(-2) = 5 ==> substitute -2 for x

3y - (-4) = 5

3y + 4 = 5 ==> --4 makes a +4, the subtract 4 (-4) from both sides

     - 4  - 4

3y = 1 ==> divide both sides by 3

/3    /3

y = 1/3 ==> your final answer

Hope this helps!

To compute the given probabilities involving the standard normal random variable z, we can use the standard normal distribution table.

To find the probability P(−1.98 ≤ z ≤ 0.45), we need to look up the corresponding values in the standard normal distribution table. The table provides the area under the standard normal curve up to a given z-value.

First, we find the area to the left of z = −1.98 in the table, which is 0.0239. Then, we find the area to the left of z = 0.45, which is 0.6736. To find the desired probability, we subtract the smaller area from the larger one: P(−1.98 ≤ z ≤ 0.45) = 0.6736 - 0.0239 = 0.6497.

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Step-by-step explanation:

just draw out according to a graph chart or pie chart

96/2= 48

given figure is a square.the line is bisect the angel

thank you

Answer: 420 legislators

Step-by-step explanation:

For this problem, we would have to multiply.

If Alabama has 140 legislators for 4 million people, we know the unit rate is:

\(140\) legislators for \(4\) million people.

So, we have to multiply 140 by 3 because 12 is 3 times the amount of 4, and the other state has 12 million people.

140 x 3 = 420

The answer to the question would be 420.

Answer:

420

Step-by-step explanation:

I set this up as a proportion of 140/4,000,000=x/12,000,000. Then you can cross multiply, getting 1,680,000,000=4,000,000x. Divide both sides by 4,000,000 and you get x=420. Please mark brainliest if this helped!