it will take 1 hour to catch up to train a but if the question means from as soon as train a leaves, it is 3 hours.
The time taken by train B to cover the distance of 56 km when the train at the station is in 1 hour.
What is kinematics?It is the study of the motion of a body without considering mass. And the reason behind them is neglected.
Train A leaves a station traveling at 28 km/hr.
Two hours later train B leaves the same station traveling in the same direction at 84 km/hr.
The distance traveled by the train A in two hours will be
[tex]\rm D_A=28 \times 2 = 56 km[/tex]
Then the distance between the trains when train B is at the station is 56 km.
Then the relative speed of the train will be
[tex]\rm V_{BA} =84 - 28 = 56 \ km/hr[/tex]
Then the time taken by train B to cover the distance of 56 km is in 1 hour.
More about the kinematics link is given below.
https://brainly.com/question/25638908
A square and a rectangle have the same perimeter. The length of the rectangle is
4 in. less than twice the side of the square, and the width of the rectangle is 6 in.
less than the side of the square.
Find the perimeter of the square.
Rectangle:
l = 4 inch
b = 6 inch
Perimeter = 2(l + b)
= 2(4 + 6)
= 2(10)
= 20 inch.
Given that,
The perimeter of the rectangle = The perimeter of the square
20 inch = The perimeter of the square
An equation is a mathematical statement composed of algebraic and/or numeric expressions set equal to each other.
True
False
Answer:
True,
Definition of equation for you: a statement that the values of two mathematical expressions are equal (indicated by the sign =).
Steve is looking up at Godzilla with an angle of elevation of 49 degrees. If Steve is 400 feet away, how tall is Godzilla to the nearest foot?
9514 1404 393
Answer:
460 feet
Step-by-step explanation:
The tangent relates the measures to the angle:
tan(angle of elevation) = (Godzilla height)/(distance away)
tan(49°) = (Godzilla height)/(400 ft)
Godzilla height = (400 ft)(tan(49°)) ≈ 460 ft
Godzilla is 460 feet tall.
Answer:
godzilla is 393 foot tall
Step-by-step explanation:
Which statement best explains whether the table represents a linear or nonlinear function?
Input (x) −2 −5 −8 −11
Output (y) 7 4 1 −2
A It is a linear function because there is a constant rate of change in both the input and output values.
B It is a nonlinear function because there is a constant rate of change in both the input and output values.
C It is a linear function because the input values are decreasing.
D It is a nonlinear function because the input values are increasing.
Answer:
It is a linear function because there is a constant rate of change in both the input and output values.
Step-by-step explanation: I took the test
3b • a2
This for test
un cine tiene 2 salas la sala A tiene 1920 butacas distribuidas en 24 filas con la misma cantidad en cada una ¿cuantas butacas tiene cada fila?
Answer:
80 and B is 96
Step-by-step explanation:
1920 ÷ 24 = 80
1920 ÷ 20 = 96
puedes comprobarlo en la calculadora
lo siento si es incorrecto
eso es lo que entendí
in the circle shown, chords AC and BD intersect at E . if AE=8, EC=6, and BE=4. how long is DE?
10
12
14
16
Answer:
[tex] DE = 12 [/tex]
Step-by-step explanation:
Given:
AE = 8,
EC = 6,
BE = 4.
Required:
Length of DE
SOLUTION:
According to the Intersecting Chords Theorem, [tex] DE \times BE = AE \times EC [/tex]
Plug in the values into the equation. We would have:
[tex] DE \times 4 = 8 \times 6 [/tex]
[tex] DE \times 4 = 48 [/tex]
Divide both sides by 4
[tex] DE = \frac{48}{4} [/tex]
[tex] DE = 12 [/tex]
Answer:
12
Step-by-step explanation:
Find a system of two equations in two variables, x1 and x2, that has the solution set given by the parametric representation
x1 = t and x2 = 7t − 8,
where t is any real number. (Enter your answer as a comma-separated list of equations.)
Let x2 = t, then x1 = ?
Answer:
3
Step-by-step explanation:
this is what I think
Endpoint given the Midpoint: * The midpoint of RP is M(2, 4). If one of the end points is R(-1,7), find the coordinates of the other end point.
Answer:
The coordinates of other point are: (5,1)
Step-by-step explanation:
Given coordinates are:
M(x,y) = (2,4)
R(x_1,x_2) = (-1,7)
We have to find the coordinates of other point (x2,y2)
The formula for mid-point is given by:
[tex]M(x,y) = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})[/tex]
Putting the values we get
[tex](2,4) = (\frac{-1+x_2}{2}, \frac{7+y_2}{2})[/tex]
Putting respective elements equal
[tex]\frac{-1+x_2}{2} = 2\\-1+x_2 = 2*2\\-1+x_2 = 4\\x_2 = 4+1\\x_2 = 5\\And\\\frac{7+y_2}{2} = 4\\7+y_2 = 4*2\\7+y_2 = 8\\y_2 = 8-7\\y_2 = 1[/tex]
Hence,
The coordinates of other point are: (5,1)
The price of a new car was $12 500 It is reduced to £11 625 Work out the percentage reduction
It usually takes Claude 40 minutes driving at 48 miles per hour to go from home to work. But due to road maintenance today, Claude has to take a detour, which makes the trp 8 miles longer than usual. What is the minimum speed Claude should travel so that he can reach the destination in less than 48 minutes? (1 point) 1. 64 miles per hour 2.50 miles per hour 3. 30 miles per hour 4. 56 miles per hour
Answer:
30 miles per hour
Step-by-step explanation:
i took the test
Answer:
50 miles per hour
Step-by-step explanation:
I actually took the quick check
Plz help me ASAP! Below is the question.
Answer:
you are rigjt
Step-by-step explanation:
im a g yeeeeeeee
What is the equation in slope-intercept form for the line that passes through the points (−2, −1) and (1, 5)?
A. y = 2x − 3
B. y = 2x + 3
C. y = −2x − 3
D. y = −2x + 3
Answer:
y=2x+3
Step-by-step explanation:
we know the slope is 2
now we are going to find b
-1=2(-2)+b
-1=-4+b
-1+4=3
3=b
please need help on this one
What is Jamal’s weight in kilograms if he weighs 156 pounds? Round to the nearest tenth if necessary. Jamal weighs 34.7 kilograms. Jamal weighs 70.2 kilograms. Jamal weighs 155.6 kilograms. Jamal weighs 346.7 kilograms.
Answer:
70.2 is the closest.
Step-by-step explanation:
156 / 2.2 = 70.8
How do you find p(a and b) ?
Answer:
Formula for the probability of A and B (independent events): p(A and B) = p(A) * p(B). If the probability of one event doesn't affect the other, you have an independent event. All you do is multiply the probability of one by the probability of another.
Step-by-step explanation:
How many times will 5 go into 6?
Answer:
One time
Step-by-step explanation:
(5x2=10) so 5x1=6
Using the graph provided, find the y-intercept.
Answer:
y-intercept = 2
Step-by-step explanation:
The y-intercept of a graph is simply the point at which the value of y, when x = 0. It is the point at which the y-axis is intercepted by the line.
In the graph provided, the line cuts the y-axis at y = 2, when x = 0.
Therefore the y-intercept of the graph provided = 2.
The image is basically the question. I am in the middle of this test plz help!
help, please. brainliest.
Answer:
55=1.5i+2.5t
Step-by-step explanation:
The weight of a mandarin orange is about 6 ounces. A basket that weighs 4 ounces will hold m mandarin oranges, the total weight is 70 ounces. Which equation represents the basket of oranges?
Answer:
4 + 6m = 70
the first one
Step-by-step explanation:
If I’m tiling a floor of a 10’ x 10’ room and find that 100 tiles will be needed how many tiles will be needed to tile a floor of 20’ x 20’ room
Answer:
400 Tiles
Step-by-step explanation:
20 x 20 = 400
(Length x Width)
Answer:
400
Step-by-step explanation:
Enough that you will need a large piggy bank to take money out of.\
There are 4 squares of equal size that will fit the floor of a 20 by 20 foot room.
Therefore you will need 4 * 100 = 400 tiles.
You could do it by noting that the floor has 20 by 20 tiles which is 20^2 which is 400.
Ray EF is the bisector of angle AET. Find the measure of angle FEA.* 70° E A Your answer
Answer:
<FEA is 70 degrees. It is already given.
how to solve the equation 8b - 12 = 5b
Answer:
b = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Equality PropertiesStep-by-step explanation:
Step 1: Define equation
8b - 12 = 5b
Step 2: Solve for b
Subtract 5b on both sides: 3b - 12 = 0Add 12 on both sides: 3b = 12Divide 3 on both sides: b = 4Step 3: Check
Plug in b to verify it's a solution.
Substitute: 8(4) - 12 = 5(4)Multiply: 32 - 12 = 20Subtract: 20 = 20And we have our final answer!
What is 10c+9-7c.....?
Answer:
17c + 9 = 10c + 9 - 7c
COMBINE LIKE TERMS
10c + 7c = 17c
9 IS NOT A LIKE TERM, SO WE LEAVE IT ALONE
How do you know that the sum of
[tex]( - 2 \frac{3}{4} )[/tex]
and
[tex] \frac{5}{9} [/tex]
is rational ?
Answer:
A rational number is any number that can expressed as a fraction, those numbers are already fractions, so any operation on them gives a fraction which is rational
Find the value of y. Express in simplest radical form.
Answer:
5 root 5
Step-by-step explanation:
it's just u will make square of 10 and 5 then add them together
after u will put them under root
Mr. Brown plowed 6 acres in 1 hour. At this rate, how long will it take him
to plow 21 acres?
Answer:
3 and a half hours
Answer:3.5 hours
Step-by-step explanation:
6 acre= 1 hour
60 min ÷6= 10 min for 1 acre
10 ×21= 210
210÷60=3.5 hours
Which of these sets of measurements represents the lengths of the sides of a right triangle?
a. (10, 24, 26)
b. (5, 12, 24)
c. (12, 18, 30)
d. (1, 2, 9)
Answer: The answer is B, just had this answer today, teacher said it was correct.
What's the diameter of 76cm circle circumference
Answer:
The circumference of a circle is C = 2πr^2 (2nd power) Radius (r) is the distance from the center of the circle to the outside of it. To find radius divide the diameter (d) by 2. The diameter (d) of a circle is the radius (r) multiplied by 2. To find the diameter (d) you need to do C ÷ π.
For example):
Finding diameter - 76/3.14 = 24.19 (d)
Finding radius - 24.19/2 = 12.095 (r)