A railway station measures 200 meters in length. How long is it?


A. 10,000 cm
B. 12,000 cm
C. 15,000 cm
D. 20,000 cm

The variable t in the equation is 1.

3t - 18 = 4(-3 - 3/4t)

Open the bracket on the right side

3t - 18 = 4(-3 - 3/4t)

3t - 18 = -12 - 3t

add 3t to both sides of the equation

3t - 18 = -12 - 3t

3t - 18 + 3t = -12 - 3t + 3t

3t + 3t  - 18 = -12

6t - 18 = - 12

Add 18 to both sides of the equation

6t - 18 = - 12

6t - 18 + 18 = - 12 + 18

6t = 6

divide both sides by 6

6t = 6

6t / 6 = 6 / 6

t = 1

Therefore, the value of t is 1.

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Answer:

Perpendicular slope = – 1/m = -1/3 = -1/3

Step-by-step explanation:

Given the points

\(\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\)

\(\left(x_1,\:y_1\right)=\left(-1,\:2\right),\:\left(x_2,\:y_2\right)=\left(-2,\:-1\right)\)

\(m=\frac{-1-2}{-2-\left(-1\right)}\)

\(m=\frac{-1-2}{-2-\left(-1\right)}\)

\(m=3\)

We know that a line perpendicular to another line contains a slope that is the negative reciprocal of the slope of the other line, such as:

slope = m = 3

perpendicular slope = – 1/m = -1/3 = -1/3

Thus, the slope of any line perpendicular to GH = -1/3

Answer:

(y-9)8

Step-by-step explanation:

you first solve 8-9, and then multiply is by 8.

Eight times the difference of y and nine will be 8(y - 9).

It should be noted that eight times the difference of y and nine simply means that one has to subtract 9 from y and then multiply the difference by 8.

Therefore, eight times the difference of y and nine will be 8(y - 9).

In conclusion, the correct option is 8(y - 9).

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Answer:

Step-by-step explanation:

amplitude of oscillation a = 12 / 2 = 6 inches.

time period T = 2 s

b = angular frequency = 2π / T

= 2π / 2

= π

so putting the values in the equation

d = a cos ( b t )

d = 6 cos ( π t )

Answer:

there are two more questions and the answers are 0.5 is the least positive amount of the pendulum and 4.243=y when x=4.25

Step-by-step explanation:

Answer:

Step-by-step explanation: well, you will more than likely get it at least 60%-80% of the time! If this doesn't help i can try to explain in a lot more detail unless someone does for me!

So the parametric equation for the line through the point p(-2, 8, 5) and parallel to the vector v is:

x = -2 + t * vx

y = 8 + t * vy

z = 5 + t * vz

The vector equation for a line can be represented as:

p = p0 + t * d

where p0 is a point on the line, t is a scalar parameter, and d is the direction vector of the line. To find the vector equation for the line through the point p(-2, 8, 5) and parallel to the vector v, we need to find the direction vector d and the point p0.

Since the line is parallel to the vector v, the direction vector d will be equal to v. The point p0 can be found by using the point p(-2, 8, 5):

p0 = p - t * d

p0 = (-2, 8, 5) - 0 * (v) = (-2, 8, 5)

So the vector equation for the line through the point p(-2, 8, 5) and parallel to the vector v is:

p = (-2, 8, 5) + t * (v)

x = x0 + t * dx

y = y0 + t * dy

z = z0 + t * dz

where (x0, y0, z0) is a point on the line, and (dx, dy, dz) is the direction vector of the line.

x = -2 + t * vx

y = 8 + t * vy

z = 5 + t * vz

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Answer:

go by basics u will get it easier

Step-by-step explanation:

assume X2 + e3x as some function t

now find derivative you get (1/t )dt/dx

now find dt /dx. simply derivative with respect to x

for second question use formula

dy/dx = - partial derivative of function with x / partial derivative of function with respect to y

answer: 0.3km

explanation:

distance in 1 hour = 3/5km

distance in 1/2 hour = 3/5km ÷ 2

= 3/10km

= 0.3km

hence, john would have walked 0.3km in half an hour.

The equivalent matrix of the matrix operations can be given by \(\left[\begin{array}{ccc}35&14\\-70&42\end{array}\right]\).

Matrix operations are fundamental mathematical operations performed on matrices, which are rectangular arrays of numbers or symbols arranged in rows and columns. Matrix operation includes addition, subtraction, scalar multiplication, matrix multiplication, transposition, determinant, inverse, etc.

Given matrices are written below:

\(A=\left[\begin{array}{ccc}1&5\\-5&3\end{array}\right]\) and \(B=\left[\begin{array}{ccc}4&-3\\-5&3\end{array}\right]\).

Given matrices operation to be performed: \(7(A)+7(B)\).

\(7(A)+7(B)=7\left[\begin{array}{ccc}1&5\\-5&3\end{array}\right] +7\left[\begin{array}{ccc}4&-3\\-5&3\end{array}\right]\)

First, perform the scalar multiplication. Multiply both matrices by the scalar \(7\).

\(\Rightarrow7(A)+7(B)=\left[\begin{array}{ccc}(1\times7)&(5\times7)\\(-5\times7)&(3\times7)\end{array}\right] +\left[\begin{array}{ccc}(4\times7)&(-3\times7)\\(-5\times7)&(3\times7)\end{array}\right]\\\Rightarrow7(A)+7(B)=\left[\begin{array}{ccc}7&35\\-35&21\end{array}\right] +\left[\begin{array}{ccc}28&-21\\-35&21\end{array}\right]\\\)

Now, perform the addition of two matrices.

\(\Rightarrow7(A)+7(B)=\left[\begin{array}{ccc}(7+28)&(35-21)\\(-35-35)&(21+21)\end{array}\right]\\\Rightarrow7(A)+7(B)=\left[\begin{array}{ccc}35&14\\-70&42\end{array}\right]\\\)

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Answer:

  8

Step-by-step explanation:

You want to know the measure of segment XY if ∆XYZ ≅ ∆MNL and MN = 8.

Segment XY is named using the first two vertices listed in the name of ∆XYZ. That means the segment is the same length as the one named by the first two vertices listed in the name of congruent ∆MNL, segment MN.

Segment MN is given as 8 units long. Segment XY is congruent, so is also 8 units long.

  XY = 8 units

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Answer:

(1)

Step-by-step explanation:

11111111111111111111111

The function with the steepest slope is \(y = 7x - 3\).

The correct answer is C.

The linear function with the steepest slope is the one with the highest absolute value for the coefficient of x.

Let's compare the coefficients of x in each of the given functions:

\(y = -8x + 5\)

Slope: -8

\(y - 9 = -2(x + 1)\)

Simplifying, we get \(y - 9 = -2x - 2\)

Rearranging, we have \(y = -2x + 7\)

Slope: -2

\(y = 7x - 3\)

Slope: 7

\(y + 2 = 6(x + 10)\)

Simplifying, we get \(y + 2 = 6x + 60\)

Rearranging, we have \(y = 6x + 58\)

Slope: 6

Therefore, the steepest slope is the \(y = 7x - 3\).

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Answer:

$13,568.30

Step-by-step explanation:

I = Prt

I = 2,219(1.0191)(6) = 13,568.30

The mathematical formula for calculating the support percent is the number of times an association did occur divided by the number of times it could have occurred in the data set.

Support is a measure of the frequency or popularity of an itemset, i.e., the number of transactions in which an item or a set of items appears in a transaction database.

In data mining and association rule learning, support is a key measure for identifying interesting patterns or associations in the data. A high support value indicates that the itemset is frequently occurring in the data, and is therefore considered as having a high degree of importance or interest.

In general, a support threshold is used to prune the search space and focus on only those patterns that meet a minimum support criterion.

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Your question seems incomplete, but I suppose the full question was:

"The mathematical formula for calculating the ________ percent is the number of times an association did occur divided by the number of times it could have occurred in the data set.

support

confidence

Laplace

gain."

Answer:

C

Step-by-step explanation:

None of the others are vertical angles

a is supplementary angles

b is supplementary angles

d is alternate interior angles

Answer:

6

Step-by-step explanation:

The given triangle has a rise of 4 and a run of 3. The similar triangle has a rise of 8, which is double the rise of the given triangle. So the similar triangle will have double the run of the given triangle as well.

3 x 2 = 6

Answer:

g(h(2))= 5

Step-by-step explanation:

h(x)=x^3-3

g(2^3-3)

the 2 replaces the x

simplify

g(5)

Answer:

$880

Step-by-step explanation:

Use the equation:

\(P=(1-d)x\) with d being the discount in a decimal form, and P being the price that was bought at.

220=(1-0.75)x

simplify parenthesis terms

220=0.25x

divide both sides by 0.25

880=x

So, the original price was $880.

Hope this helps! :)

Answer:

The height is 1.25m.

Step-by-step explanation:

Volume = 1/3 πr²h

Given:

V = 13.4 m³

r = 3.2 m

Asked: height (h)

Substitute the formula with the given values then solve

13.4m³ = 1/3π(3.2m)²h

13.4(3) = 10.24πh

40.2 = 10.24πh

h = 40.2/10.24π

h = 1.25m

The height of the cone is 1.25 meters.

We know that the volume of the cone is given by

V = (1 / 3) * π * r ^2 * h................equation 1

where,

V is the volume of the cone.

r is the radius of the cone's base

h is the height

The volume and radius of the cone are given,

V = 13.4 m

r = 3.2m

substituting these values in equation 1 we get,

13.4 = (1 / 3) * 3.14 * 3.2 ^ 2 * h

on simplifying further

13.4 = 10.717  * h

h = 1.25m

The height of the cone is 1.25 meters.

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Answer: KL = KN LM=NO=9 Side-Side-Side

Step-by-step explanation:

The required answers to the question is given below.

Triangle congruence: If all three corresponding sides and all three corresponding angles are equal in size, two triangles are said to be congruent. Slide, twist, flip, and turn these triangles to create a similar appearance. They are in alignment with one another when moved. "≅" is the congruence symbol.

Use the following figure to understand the answer.

The Proof is

1. KM=KO=5 (GIven)

2. MN=3 (Given)

3. KN=KM+MN=8 (because the lengths are equal to the sum of their parts.)

4. KL=8 (Given)

5. KL=KN (from 3,4 substitution)

6. NO=ML=9 (Given)

7. ΔKLM=ΔKNO the congruence criterion used is SSS congruence.

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Answer

Step-by-step explanation:

chord makes  or arc make 120° at the center.

sum of other two angles of triangle=180-120=60

because they are equal.

so each angle=60/2=30°

tangent line makes angle 90° with radius .

so 30+y=90

y=90-30=60°

Answer:

0.04

Step-by-step explanation:

We know that 4% of packages are lost in the mail, but we want to know the decimal.

We must convert 4% to a decimal. There are 2 ways to do this.

1.

Remove percent sign and divide by 100.

4%

4

4/100

0.04

2.

Remove percent sign and move decimal place two spots to the left.

4%

4 = 4.0

4.0  -->  0.4  --> 0.04

0.04 of the packages are lost in the mail.

Answer:

72 : 24 = 15 : 5

Answer:

5:2 is the simplest ratio of the circles to total

Step-by-step explanation:

5:2 is the answer hope it helps ya

Answer:

6x^2+4xy

Step-by-step explanation:

You distribute the 2x by multiplying it with each term
2x(3x)+ 2x(2y)

6x^2+4xy

hopes this helps please mark brainliest

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Area of quarter = 1/4 × Area of whole circle

that is ~

\( \sf \approx38.46 \: \: cm {}^{2} \)

Answer:

miles: 55(36/60) = 55(0.6) = 33 miles

mins: 60(14/17.5) = 60(0.8) = 48 minutes

Total amount of time, in minutes

The total distance, in miles

Step-by-step explanation:

The required distance and time are 47 miles and 84 minutes, respectively.

Speed is measured as the ratio between the distance and time, and the SI unit of speed is m/s.

We know that speed = distance / time

Finding for distance =

55(36/60) = 55(0.6) = 33 miles

Therefore, The total distance, in miles =

= 33 miles + 14 miles

= 47 miles

For Time =

60(14/17.5) = 60(0.8) = 48 minutes

Therefore, Total amount of time, in minutes =

36 minutes + 48 minutes

= 84 minutes

Hence, The required distance and time are 47 miles and 84 minutes, respectively.

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Answer:

you see

Step-by-step explanation: