Answer:
6*(5+10)
Step-by-step explanation:
6*(5+10)
6*15
90
A train is traveling at a speed of 80 km/h when the conductor applies the brakes. The train slows with a constant acceleration of magnitude .5 m/s^2. We want to find the distance the train travels from the time the brakes are applied until the train comes to a complete stop. Which kinematic formula would be most useful to solve for the target unknown?
Answer:
The train will travel 493.817 meters until it stops completely.
Step-by-step explanation:
In this case, we know that train applies the brakes and decelerates at constant rate until rest is reached after travelling an unknown distance. Travelled distance ([tex]\Delta s[/tex]), measured in meters, can be found by using this kinematic formula:
[tex]v^{2} = v_{o}^{2}+2\cdot a \cdot \Delta s[/tex] (Eq. 1)
Where:
[tex]v_{o}[/tex] - Initial speed, measured in meters per second.
[tex]v[/tex] - Final speed, measured in meters per second.
[tex]a[/tex] - Acceleration, measured in meters per square second.
Now travelled distance is cleared within the formula:
[tex]\Delta s = \frac{v^{2}-v_{o}^{2}}{2\cdot a}[/tex]
If we know that [tex]v_{o} = 22.222\,\frac{m}{s}[/tex], [tex]v = 0\,\frac{m}{s}[/tex] and [tex]a = -0.5\,\frac{m}{s^{2}}[/tex], then the distance travelled by the train is:
[tex]\Delta s = \frac{\left(0\,\frac{m}{s} \right)^{2}-\left(22.222\,\frac{m}{s} \right)^{2}}{2\cdot \left(-0.5\,\frac{m}{s^{2}}\right) }[/tex]
[tex]\Delta s = 493.817\,m[/tex]
The train will travel 493.817 meters until it stops completely.
Answer:
v² = v²0 + 2aΔx
Step-by-step explanation:
At the nearest wholesale store, 3 bags of bulk cereal cost $21.75.
At this rate, how much would 5 bags of bulk cereal cost? Enter your answer in the box.
Answer:
[tex]36.25[/tex]
Step-by-step explanation:
Let [tex]x[/tex] be the cost of 5 bags of bulk cereal.
3 is to $21.75 as 5 is to [tex]x[/tex], this translates to the following
[tex]\frac{3}{21.75}=\frac{5}{x}[/tex]
Solving for [tex]x[/tex], we get [tex]x=36.25[/tex]
Answer:
5 bags of bulk cereal cost $36.24
Step-by-step explanation:
HELP, IM NOT GOOD A COORDINATES.
A(1,0)
B(0,-3)
C(-6,5)
D(-3,-5)
E(-1,4)
Lee wanted to visit his grandmother who lives 1,400 air miles
away. If Lee's plane travels 400 miles per hour, how many
hours would Lee's flight take?
Answer:
Lee's flight would take 3.5 hours.
Step-by-step explanation:
1400 ÷ 400 = 3.5
Prove or disprove each of these statements about the floor and ceiling functions. a) ⌊⌈x⌉⌋ = ⌈x⌉ for all real numbers x. b) ⌊x+y⌋=⌊x⌋+⌊y⌋for all real numbers x and y. c) ⌈⌈x∕2⌉ ∕2⌉ = ⌈x∕4⌉ for all real numbers x. d)⌊√⌈x⌉⌋ = ⌊√x ⌋ for all positive real numbers x. e) ⌊x⌋+⌊y⌋+⌊x+y⌋≤⌊2x⌋+⌊2y⌋forall real numbers x and y.
Answer:
A) equality function will hold
B) equality function doesn't hold
C) equality function holds )
D) equality function doesn't hold
E) equality function holds
Step-by-step explanation:
a) ⌊⌈x⌉⌋ = ⌈x⌉ for all real numbers x.
The ceiling function will yield an integer, that is greater ≥ x.
Also the floor function when applied to an integer will yield the same integer value. hence the two sides will become the same Therefore the equality function will hold
b) ⌊x+y⌋=⌊x⌋+⌊y⌋ for all real numbers x and y
The floor function of this statement yields a value that is ≤ inserted value and this makes the right hand side of the statement to be 1 less than the sum produced from the left hand side of the statement, therefore the equality function doesn't hold
c) ⌈⌈x∕2⌉ ∕2⌉ = ⌈x∕4⌉ for all real numbers x.
The ceiling function produces an integer that is ≥ value inserted and the integer gotten is divided by 2 and this serves a s an input to the ceiling function( which means X has been divide by 4 ) making the two sides of the equation the same ( equality function holds )
d)⌊√⌈x⌉⌋ = ⌊√x ⌋ for all positive real numbers x
The ceiling function is applied to the value inserted in x(on the left hand side ), and the result will not be equal to that in the right hand side.
Therefore the equality function doesn't hold
e) ⌊x⌋+⌊y⌋+⌊x+y⌋≤⌊2x⌋+⌊2y⌋forall real numbers x and y.
If the value of the fractional part of x or y is > 0.5, then the right hand side will be greater than the left hand side by 1.
Otherwise, both left and right hand sides yield equal answers. therefore equality function holds
The length of a side of a square is (2x + 9) km. Find the area of the square in terms of the variable x.
State if the two triangles are congruent. If they are, state how you know.
Explanation:
AAS = angle angle side
The arc markings show us which pairs of angles are congruent. The pair of congruent sides are the shared overlapping sides. Notice that the sides are not between the red angles, so we go for AAS instead of ASA. The order is important.
We cannot use SAS because we only know info about one pair of congruent sides (not two).
I dont understand this, please give an explanation
Answer:
[tex]\bold\blue{x {}^{2} + 5x + 4} [/tex]
Here ,
we just need to substitute " x = - 5 " in the equation above.
[tex]\bold{x {}^{2} + 5x + 4} \\\bold{ ( - 5) {}^{2} + 5( - 5) + 4} \\ \bold{ \cancel{25} - \cancel{25} + 4} \\ \fbox\pink{⇢ 4}[/tex]
hope helpful ~
[tex] \huge \qquad \boxed{ \sf Aᥒsᥕᥱr ☂}[/tex]
let's plug in the value of x as -5, in the given expression ~
[tex] \qquad\rightarrowtail \sf {x}^{2} + 5x - 4[/tex]
[tex] \qquad\rightarrowtail \sf { (- 5)}^{2} + 5( - 5) - 4[/tex]
[tex] \qquad\rightarrowtail \sf 25 - 25 + 4[/tex]
[tex] \qquad\rightarrowtail \sf 4[/tex]
Therefore, we got the required value 4
¿cuántos kilos de productos de primera necesidad ,ha consumido la familia de manuel en los tres meses?
En total, durante los últimos meses la familia de Manuel ha consumido 792 kilos de productos de primera necesidad.
¿Cómo calcular el total de comida consumida?Sumar la cantidad total de cada alimento.Sumar estos totales.¿Cuál es el total de cada comida?Arroz: 17+13+18= 48 kg
Fideos: 12+27+30 = 69 kg
Harina: 26+56+50= 132 kg
Aceite: 6+24+30= 60 kg
Avena: 8+16+20= 44 kg
Papa: 32+48+48= 128 kg
Frejol: 12+20+27= 59 kg
Alverja: 16+24+26= 66 kg
Pollo: 12+12+12= 36 kg
Carne de res: 8+10+10= 28 kg
Mazamorra: 8+25+28= 61 kg
Leche: 13+24+24=61 kg
¿Cuál es el total de comida consumida?48+69+132+60+44+128+59+66+36+28+61+61= 792 kilos
Nota: Esta pregunta está incompleta, a continuación se adjunta la parte faltante.
Aprenda más sobre sumas en: https://brainly.com/question/1456841
Why do people engage in various ?
Answer:
When and why do people engage in different forms of proactive behavior at work? We propose that as a result of a process of trait activation, employees with different types of self-construal engage in distinct forms of proactive behavior if they work in environments consistent with their self-construals. In an experimental Study 1 (n = 61), we examined the effect of self-construals on proactivity and found that people primed with interdependent self-construals engaged in more work unit–oriented proactive behavior when job interdependence was also manipulated. Priming independent self-construals did not enhance career-oriented proactive behavior, even when we manipulated job autonomy. In a field Study 2 (n = 205), we found that employees with interdependent self-construals working in jobs with high interdependence reported higher work unit commitment and higher work unit–oriented proactive behavior compared to employees in low interdependent jobs. Employees with independent self-construals working in jobs with high autonomy also exhibited stronger career commitment and more career-oriented proactive behavior than did those in jobs with low autonomy. This research offers a theoretical framework to explain how dispositional and situational factors interactively shape people’s engagement in different forms of proactive behavior.
Step-by-step explanation:
What is the solution to the system of equations?
2x + y - Z= 7
- X- 2y – 2z = -9
X + 3y - 32= 6
A : (3,-2,1)
B : (3,2,-1)
C : (3,2,1)
D : (-3.2,1)
Answer:
the answer is b
Step-by-step explanation:
bc i just this it is
The kinetic energy k of an object in joules is given by the formula k=1/2mv² where m is the object's mass in kilograms and v is its velocity in meters per second. An object’s velocity is 20 meters per second, and its kinetic energy is 48,000 joules. If it speeds up to 40 meters per second, what is its new kinetic energy?
Answer:
192000 J
Step-by-step explanation:
k = 1/2 mv²
48000 = 1/2 x m x (20)²
48000 = 200m
m = 240 kg
new k
k = 1/2 x 240 x 40²
k = 192000 J
There is a pair of parallel sides in the following shape.
2 12 13 7
What is the area of the shape?
___units
The area of the shape is the amount of space on the shape
Using the assumed parameters, the area of the shape is 25 square units
How to determine the area?The question is incomplete, as the shape is not given.
Assume the shape is a trapezoid, the area of the shape would be:
A = 0.5 * (sum of parallels sides) * height
Using the assumed values, we have:
Area = 0.5 * (12 + 13) * 2
Evaluate the product
Area = 25
Using the assumed values, the area of the shape is 25 square units
Read more about areas at:
https://brainly.com/question/24487155
Answer:
54
Step-by-step explanation:
Which shows the list of numbers in order from least to greatest?
|-4.2|, |-4/5|, |-1|, -2, |3.5|
Answer:
-4.2 (least) < -2 < -1 < -4/5 < 3.5 (greatest)
| | is called absolute value, but you can ignore it as |-4.2| equals to -4.2
The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 5:18. There are 36 gallons of gasoline. How many ounces of oil are there?
129.6 ounces
16 ounces
10 ounces
2.5 ounces
At Tamu's Rental Center, customers can rent a moon bounce for a $50 rental fee plus $12 for each
hour they use the equipment.
Part A
Identify the initial value and the rate of change for the function that represents the situation.
The initial value is
The rate of change is
Part B
Write an equation in slope-intercept form that represents the situation. Use c to represent the total
cost.
(4s+3)(4s–3) i really neeed help
Answer:
16s^2 -9
Step-by-step explanation:
(4s+3)(4s–3)
FOIL
first : 4x*4x = 16s^2
outer -3 *4s = -12s
inner 3*4s = 12s
last = 3* -3 = -9
Add them together
16s^2 -12s+12s -9
Combine like terms
16s^2 -9
What measure of center best represents the data set? Drag and drop the correct answer into the box. Data Set Best Measure of Center {27, 29, 26, 28, 25}.
The measure of center best represents the data set is Mean or Median.
Given
Data Set Best Measure of Center {27, 29, 26, 28, 25}.
What is the mean of the data set?The mean is the average of a set of data.
The mean is found by finding the sum of the data and then dividing the sum by the number of data.
The mean of the given data set is;
[tex]\rm Mean = \dfrac{27+29+26+28+25}{5}\\\\Mean =\dfrac{135}{5}\\\\Mean =27[/tex]
Arranging the data set in the ascending order
{25, 26, 27, 28, 29}
The median is defined as the middle value of the given data set.
The median of the data set is 27.
Hence, the measure of center best represents the data set is Mean or Median.
To know more about mean and median click the link is given below.
https://brainly.com/question/1363341
Please help me I don´t get it?
What is the domain of the following graph?
Answer:
[0,9]
Step-by-step explanation:
The domain is the first set of the ordered pair. When finding the domain you are supposed to find which x value it starts from to where it ends. The x value starts from 0 and ends and the 9th unit on the x-axis which would give us 0,9 now since both points are closed you would use these symbols [ ] to show that it is closed meaning the answer would be [0,9]
Note:
I'm sorry if this is wrong but this is what I believe the answer is.
Go step by step to simplify the radical.
[tex]\sqrt{224}[/tex]
Answer:
4√14
Step-by-step explanation:
You simplify a radical by removing squares from under it.
[tex]\sqrt{224}=\sqrt{16\cdot14}=\sqrt{4^2\cdot 14}=\boxed{4\sqrt{14}}[/tex]
What is .5 written as a fraction?
Answer:
1/2
Step-by-step explanation:
Two cylindrical vases have the same base, but one vase is twice as tall as the other one. Therefore, the taller vase will hold 8 times as much water as the shorter vase.
Answer:true
Step-by-step explanation:
If O is an angle in standard position and its terminal side passes through the point
(-35,-12), find the exact value of sin 0 in simplest radical form.
[tex](\stackrel{a}{-35}~~,~~\stackrel{b}{-12})\qquad \impliedby \textit{let's find the \underline{hypotenuse}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c = \sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ c=\sqrt{(-35)^2+(-12)^2}\implies c=\sqrt{1225+144}\implies c=\sqrt{1369} \\\\\\ \underline{c=37}~\hspace{10em}sin(\theta )=\cfrac{\stackrel{opposite}{-12}}{\underset{hypotenuse}{37}}[/tex]
Pls help :( :(((
Pls pls pls
Answer:
1.) a- 9,00
b-43,000
d-8,000
e-41,000
g-7,000
h-56,000
j-16,000
Step-by-step explanation:
2.)
a-5
b-17
c-21
Answer:
1)
a. 9,000 bytes
b. 43,000 bytes
c. 9,600 bytes
d. 8,000 kilobytes
e. 41,000 kilobytes f. 7,300 kilobytes
g. 7,000 MB h. 56,000 MB
i. 2,500 MB j. 16,000,000 Bytes
2)
a. 5
b. 17
c. 21
4+4x=2x+8+2x-5
Please help cant figure it out
The table shows the monthly profit of a company in the first half of the year 2017.
Months profits
January: 3 950
February: -1 500
March: -720
April: 1 270
May: 3 720
June: -4 800
Calculate the average monthly profit of the company for the first 6 months in 2017
[tex]\huge\underline\mathtt\colorbox{cyan}{320}[/tex]
Step-by-step explanation:
Avg=[tex] \frac{sum of all frequencies(Σfixi) }{number of frequencies(Σfi)} [/tex]Adding all the values gives 1920 So average= [tex] \frac{1920}{6} = 320[/tex]HELP FAST IM GETTING TIMED PLEASE ILL MARK BRAINLIEST
Answer:
Step-by-step explanation:
for every 10c there is 30c. for every 20c there is 125c.
lmc of x^2-4 and x^2-5x-14
Answer:
[tex]\left(x+2\right)\cdot \left(x-2\right)\cdot \left(x-7\right)[/tex]
Step-by-step explanation:
[tex]\mathrm{Find\:Least\:Common\:Multiplier\:of\:}x^2-4,\:x^2-5x-14[/tex]
[tex]\mathrm{The\:LCM\:of\:}a,\:b\:\mathrm{is\:the\:smallest\:multiplier\:that\:is\:divisible\:by\:both\:}a\mathrm{\:and\:}b[/tex]
[tex]x^2-4[/tex]
[tex]\mathrm{Rewrite\:}4\mathrm{\:as\:}2^2[/tex]
[tex]=x^2-2^2[/tex]
[tex]x^2-2^2=\left(x+2\right)\left(x-2\right)[/tex]
[tex]=\left(x+2\right)\left(x-2\right)[/tex]
[tex]x^2-5x-14[/tex]
[tex]=\left(x^2+2x\right)+\left(-7x-14\right)[/tex]
[tex]=x\left(x+2\right)-7\left(x+2\right)[/tex]
[tex]=\left(x+2\right)\left(x-7\right)[/tex]
[tex]\mathrm{Multiply\:each\:factor\:with\:the\:highest\:power:}[/tex]
[tex]\left(x+2\right)\cdot \left(x-2\right)\cdot \left(x-7\right)[/tex]
I need help!! Can an awesome genius please help me out?
Answer:
D
Step-by-step explanation: