Answer:
Ok, primero Agustín camina a 5km/h.
Cuando el recorre 7km, el regresa.
El tiempo en el que sucede esto es a:
7km/5km/h = 1.4 h
La ecuación para Agustín es:
A(t) = 5km/h*t para 0h ≤ t ≤ 1.4h (ida)
A(t) = 7km - 5km/h*(t - 1.4h) para 1.4h ≤ t. (vuelta)
Hacemos lo mismo para Barbara:
7km/3km/h = 2.5h
La ecuación para ella es:
B(t) = 3km/h*t para 0h ≤ t ≤ 2.5h (ida)
B(t) = 7km - 3km/h*(t - 2.5h) para 2.5h ≤ t. (vuelta)
a) ¿a qué distancia de la partida se encuentra con Bárbara?
Tenemos que ver cuando A(t) = B(t).
Para ello comparamos la vuelta de Agustín con la ida de Barbara.
7km - 5km/h*(t - 1.4h) = 3km/h*t
7km - 5km/h*T + 7km = 3km/h*T
14km = 8km/h*t
14/8 h = 1.75h = t.
Entonces la posición en la que se encuentran es:
B(1.75h) = 3km/h*1.75h = 5.25km
Ellos se encuentran a 5.25 kilómetros de el punto de partida.
b) Si en el momento del encuentro también Bárbara emprende el regreso
(Es decir, en este momento Barbara comienza a regresar).
Entonces ella para regresar al punto de inicio tiene que recorrer 5.25km con una velocidad de 3km/h.
Tb = 5.25km/3km/h = 1.75h
Barbara tarda 1.75 horas en regresar.
Agustín también tiene que recorrer 5.25 km para regresar, pero su velocidad es 5km/h.
Ta = 5.25km/5km/h = 1.05h.
La diferencia entre los tiempos es:
Tb - Ta =1.75h - 1.05h = 0.7h
Entonces Barbara llega al punto de partida 0.7 horas después que Agustín.
Pero queremos esto en minutos.
1 hora = 60 minutos.
0.7 horas = 0.7*(60 min) = 42min
Barbara llega 42 minutos después que Agustín.
NEED HELP ASAP PLEASE
Identify the slope and y-intercept from the following equation.
Answer:
The slope is 2/5 and the y intercept is -4
Step-by-step explanation:
The slope is always the coefficient to x
Answer:
slope = [tex]\frac{2}{5}[/tex] , y- intercept = - 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = [tex]\frac{2}{5}[/tex] x - 4 ← is in slope- intercept form
with slope m = [tex]\frac{2}{5}[/tex] and y- intercept c = - 4
what is 4x +12=20 proof
f(x) = 8x - 11
f(9) =
Answer:
61
Step-by-step explanation:
hi! we can start off by plugging in the number 9 for x in the equation.
f(x)=8x-11)
f(9)= 8(9)-11
= 72-11
=61
hope this helps.
A bakery baked 16 cakes using 40 pounds of sugar. For each cake,... pounds of sugar was used
Answer:
2.5 pounds or sugar for each cake
Step-by-step explanation:
40/16=2.5
What is the slope of a line segment with endpoints at (-1,1) and (1,5)?
O undefined
O 4.
O 0.5
O 2
F(x) =1/4(2-x)^2, what is the value of f(18)
Answer:
I have know idea what the answer is
Help please I need this now
Answer:
what is the question i cat help without the question
Step-by-step explanation:
Answer:
The answer for this is 850 dollars
Step-by-step explanation:
Since D stand for 50
You would do 50 X 17
Resulting in 850 dollars
what is the opposite of −(−6.3)
Answer:
the reicprocal is -1/6.3
Step-by-step explanation:
Quincy needs 322 yards of ribbon to decorate quilts for a craft fair. The ribbon comes in rolls of 15 yards. Alice needs twice as many yards of ribbon as Quincy. How many rolls of ribbon does Alice need? Explain your answer.
Answer:
The answer is 35
Which property of real numbers is shown below?
3+ ((-5) + 6) = (3 + (-5)) + 6
commutative property of addition
identity property of multiplication
associative property of addition
commutative property of multiplication
Answer:
the answer is associative property of addition
Step-by-step explanation:
the things is no matter how you switch out the numbers you will have the same income.
Answer:
If I am not mistaking it would be identity property sorry if I am wrong
Step-by-step explanation:
May I please have brainly i will almost finish my circle for brainlys please
Assessment
MULTIPLE CHOICE
Directions: Read and answer the questions carefully. Write th
your Mathematics notebook.
1. Which of the following is a well - defined set?
A. The set of big people.
B. The set of happy people.
C. The set of prime numbers.
D. The set of intelligent teachers.
Answer:
C. The set of prime numbers.
Thank you ☺️
Suppose that you plan on taking a dimmer job selling magazine subscriptions. The magazine company will pay you $1.25 for selling the first subscription. For each additional subscription sold, the magazine company will pay you 5 cents more than what was paid for the previous subscription. How much will you earn by selling 225 magazine subscriptions?
Answer:
$1243.75
Step-by-step explanation:
Hope it helps :)
Brainliest pls? Have a good day/night
HELP ILL GIVE U BRAINLEST!!
Answer:
19/24
Step-by-step explanation:
Quadration Equation
X^2 - 6x - 7 = 0
Answer:
x = - 1, x = 7
Step-by-step explanation:
Given
x² - 6x - 7 = 0
Consider the factors of the constant term (- 7) which sum to give the coefficient of the x- term (- 6)
The factors are - 7 and + 1, since
- 7 × 1 = - 7 and - 7 + 1 = - 6, thus
(x - 7)(x + 1) = 0
Equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
x + 1 = 0 ⇒ x = - 1
solve for the indicated variable. e=f-g for g
Answer:
g = f - e
Step-by-step explanation:
f - g = e
- g = e - f
g. = f - e
Use the drop-down menus to complete each statement.
The function
has the same amplitude as the function y = cos(x – 4) + 1.
The function
is a translation of the parent cosine function.
Answer: the function y = cos(2x) - 2 and the function y = cos(x) - 3
Step-by-step explanation: just took it
Function [tex]y=cos2(x)-2[/tex] and function [tex]y=cos(x)-3[/tex].
Function:A function in mathematics from a set [tex]x[/tex] to a set [tex]y[/tex] allocates exactly one element [tex]y[/tex] to each element [tex]x[/tex]. The sets [tex]x[/tex] and [tex]y[/tex] are collectively referred to as the function's domain and codomain, respectively.Initially, functions represented the idealized relationship between two changing quantities. A planet's position, for instance, depends on time. In the past, the idea was developed with the infinitesimal calculus at the end of the 17th century, and the functions that were taken into consideration until the 19th century were differentiable (that is, they had a high degree of regularity).Solution -
The function which has the same amplitude as the function [tex]y=cos(x-4)+1[/tex] and is the translation of the parent cosine is as follows:
[tex]y=cos2(x)-2[/tex][tex]y=cos(x)-3[/tex]Therefore, function [tex]y=cos2(x)-2[/tex] , and function [tex]y=cos(x)-3[/tex].
Know more about the functions here:
https://brainly.com/question/2833285
#SPJ2
Need some help on this question
Answer:
No because my brain doesn't work on math and I need help on solving inequalities
simplify the expression
d + 3cd – 7c + 3cd + 2c
Answer:
=6cd−5c+d
Step-by-step explanation:
Answer:
d + 6cd - 5c
Step-by-step explanation:
d + 3cd + 3cd + 2c - 7c = d + 6cd - 5c
What is 166.6789 to the nearest hundredth
Answer:
166.68
Step by Step:
166.678
The bolded number is greater than 5 meaning you have to round up.
so 166.678 is rounded to 166.68.
Hope this helped.
standard form of y=-3/2+7
Answer:
2y=11
Step-by-step explanation:
Answer the following above:
Answer:
-3.25
Step-by-step explanation:
Just multiply -0.5 and 6.5.
Find the greatest common factor (GCF) for 18, 27 and 54.
Answer:
9
Step-by-step explanation:
(9+2).0 = 0
Is it commutative, associative, identity ,inverse, property of zero, distributive
Answer:
The property used will be property of zero.
Step-by-step explanation:
If an equation or expression ever equals zero, then it will be property of zero.
Please help me it would mean a lot
Problem 10
Answer: 80 degreesWork Shown: 80-0 = 80
You subtract the values on the protractor where the two angle arms line up.
============================================
Problem 11
Answer: 45 degreesWork Shown: 45-0 = 45
Same idea as problem 10
============================================
Problem 12
Answer: 83 degreesWork Shown: 128-45 = 83
Same idea as the others. The arm TS isn't fully on 130 degrees, and it's a bit short of it. It looks to be about 128 degrees or so.
============================================
Problem 13
Answer: 35 degreesExplanation: Luis forgot to subtract the value of each arm of the angle. So he should have done 80-45 = 35. The answer would be 80 degrees if arm TQ was at 0 degrees (so 80-0 = 80), but instead TQ is at 45 degrees.
My Instagram just got disabled how do I recover it today or by tomorrow?? Help pls
Answer:
I would call them and ask for the manager lowkey!
Step-by-step explanation:
❤❤
Answer:
Of course today
Step-by-step explanation:
In the transformed quadratic function
vertex point is
g(x) = 3(x – 5)2 - 4 , the
O (5, 4)
O (3, -4)
o (-5, -4)
(5,-4)
Answer:
(5, -4)Step-by-step explanation:
f(x) = a(x - h)² + k ← the vertex form of quadratic function where vertex is: (h, k)
[tex]\left{\big{f(x)=a(x-h)^2+k}\atop \big{g(x)=3(x-5)^2-4}\right\}\implies a=3\,,\ \underline{h=5\,,\ k=-4}[/tex]
21. Susan traveled 114 miles in 2 hours. If she keeps going at the same rate, how long will it take her to go the remaining 285 miles of her trip?
a. 5 hours
b. 3 hours
c. 7 hours
d. 4 hours
what would be the answer to (6+3)^2-4 if you were to simplify it?
Answer:
1/81
Step-by-step explanation:
Answer:
77
Step-by-step explanation:
Parenthesis first, (6+3=9)^2 (9)^2 = 81-4 = 77
Type the correct answer in the box,
One solution to a quadratic equation is x = 1 + 8i. What is the other solution?
We'll assume the quadratic equation has real coefficients
Answer:
The other solution is x=1-8i.
Step-by-step explanation:
The Complex Conjugate Root Theorem
if P(x) is a polynomial in x with real coefficients, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).
The question does not specify if the quadratic equation has real coefficients, but we will assume that.
Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.
Answer:
the answer would be x= 1-8i
Step-by-step explanation:
plato said so