PLEASE HELP THIS ASSIGNEMNT IS TIMED I will give brainliest!!
Two trains, Train A and Train B, weigh a total of 417 tons. Train A is heavier than Train B. The difference of their weights is 249 tons. What is the weight of EACH train?
Answers
So train b is 84 tons
Train A is 249+84 so 333
Related Questions
1. The figure shows a graph of the function of f(x) in the xy-coordinate plane, with the vertex at (1,9) and the zeros
at -2 and 4.
x
5 6 7 8 9
The function g is defined by g(x) = -3x + 2. Which statements are true? Select ALL that apply.
f{-2) is greater than g(-2).
f{-1) is less than g(-1).
f{0) is greater than g(0)
f(1) is less than g(1).
f(2) is greater than g(2).
Answers
Answer:
f{0) is greater than g(0) and f(2) is greater than g(2).
Step-by-step explanation:
f{0) is greater than g(0) = f(0)=8 and g(0)=2
f(2) is greater than g(2) = f(2)=8 and g(2)= -4
The two statements that are correct are f(0) is greater than g(0), and f(2) is greater than g(2).
What is the general equation of parabola?The general equation of a parabola is given as,
[tex]y=a(x-h)^2+k[/tex]
where (h,k) is the coordinate of the vertex of the parabola.
The equation of the parabola with vertex (1,9) can be written as,
[tex]y=a(x-h)^2+k\\\\y=a(x-1)^2+9[/tex]
Now, the value of a can be found by putting one zero of the parabola,
[tex]y=a(4-1)^2+9\\\\0=a(3)^2+9\\\\-9=a(3)^2\\\\-9=a9\\\\a=-1[/tex]
Thus, the equation of the parabola can be written as y=-(x-1)²+9.
A.) The value of the two functions when the value of x is -2 can be written as,
[tex]f(x)=-(x-1)^2+9\\\\f(-2)=-(-2-1)^2+9\\\\f(-2)=0[/tex]
[tex]g(x) = -3x + 2\\\\g(-2) = -3(-2) + 2\\\\g(-2)=8[/tex]
Therefore, f(-2) is less than g(-2).
B.) The value of the two functions when the value of x is -1 can be written as,
[tex]f(x)=-(x-1)^2+9\\\\f(-1)=-(-1-1)^2+9\\\\f(-2)=5[/tex]
[tex]g(x) = -3x + 2\\\\g(-1) = -3(-1) + 2\\\\g(-1)=5[/tex]
Therefore, f(-1) is equal to g(-1).
C.) The value of the two functions when the value of x is 0 can be written as,
[tex]f(x)=-(x-1)^2+9\\\\f(0)=-(0-1)^2+9\\\\f(0)=8[/tex]
[tex]g(x) = -3x + 2\\\\g(0) = -3(0) + 2\\\\g(0)=2[/tex]
Therefore, f(0) is greater than g(0).
D.) The value of the two functions when the value of x is 1 can be written as,
[tex]f(x)=-(x-1)^2+9\\\\f(1)=-(1-1)^2+9\\\\f(1)=9[/tex]
[tex]g(x) = -3x + 2\\\\g(1) = -3(1) + 2\\\\g(1)=1[/tex]
Therefore, f(1) is greater than g(1).
E.) The value of the two functions when the value of x is 2 can be written as,
[tex]f(x)=-(x-1)^2+9\\\\f(2)=-(2-1)^2+9\\\\f(2)=8[/tex]
[tex]g(x) = -3x + 2\\\\g(2) = -3(2) + 2\\\\g(2)=-4[/tex]
Therefore, f(2) is greater than g(2).
Thus, the two statements that are correct are f(0) is greater than g(0), and f(2) is greater than g(2).
Learn more about Equation of Parabola:
https://brainly.com/question/4074088
plz help i will give brainliest
Answers
Answer:
Not fair find another job 5 dollar notice
Step-by-step explanation:
SOMEONE PLEASE HELP PLSSS WILL MARK BRAINLIEST
Answers
Answer:sorry
Step-by-step explanation: I don’t know
Can someone pls help me ASAP
Answers
Answer:
C
Step-by-step explanation:
They are supplementary angles. The sum of their measurements add up to 180 degrees
PLEASE HELP THIS ASSIGNEMNT IS TIMED
Two trains, Train A and Train B, weigh a total of 417 tons. Train A is heavier than Train B. The difference of their weights is 249 tons. What is the weight of each train?
Answers
The owner of a new coffee shop is keeping track of how much each customer spends (in dollars). One hundred of these amounts are shown in the table below. These amounts will form the population for this question.
dollar amounts
A random number table was used to generate the following numbers: 01, 03, 72, 15, 53, 20, 07, 63, 82, and 91. Use these two digit numbers to select a random sample from the table above. (NOTE: these are NOT dollar amounts. You use these digits to find the dollar amounts.)
Which choice below reflects the random sample of the 10 dollar amounts you found?
Question 3 options:
4.67, 4.06, 4.75, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, and 5.58
4.67, 4.06, 4.94, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, and 5.58
6.18, 4.06, 4.94, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, 5.58
6.18, 4.06, 4.94, 7.09, 4.10, 3.12, 4.86, 4.05, 5.00 and 5.58
Answers
Answer:6.18, 4.06, 4.94, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, 5.58
Step-by-step explanation:
I know this because i worked each one of them out good luck you should pay attention in class it's pretty simple .
Watch the video of Norman. What type of energy transformation is happening?
Norman sliding his foot across the floor.
A. Electrical energy is created by friction when his foot slides across the floor.
B. The mechanical energy of his foot moving across the floor is transformed into chemical energy.
C. When his foot is sliding across the floor, it creates heat energy through friction.
D.When his foot rubs against the floor, the energy of motion changes into light energy.
Answers
Answer:
C.
Step-by-step explanation:
When you rub your hands it makes friction and your hands get hot, Its the same with Normans feet. Also I got it right on my test so trust me :D
please help me out i don't understand this question thanks!
Answers
Answer:
try using radius i think
Step-by-step explanation:
Answer:
Use radius
Step-by-step explanation:My teacher says so
What are the values of A, B, and C in the equation –4x – 5y = 8?
Answers
Answer: A.Slope = 1.600/2.000 = 0.800
B. x-intercept = 8/4 = 2
C. y-intercept = 8/-5 = -1.60000
Step-by-step explanation:
Answer:
A = -4
B = -5
C = 8
Step-by-step explanation:
How many cubes with side lengths of 1/2 cm does it take to fill the prism?
Length:3
Width: 1
Height: 1
Answers
Answer:
3???
Step-by-step explanation:
hope this helps
this is so hard i need some help ill give brainliest too
Answers
Answer: They are incorrect
Step-by-step explanation: They are incorrect because 12+15=27 and 20+9=29 so it won't work out because the numbers need to be equal. I hope this helps!
Write the equation of the line in slope-intercept form using y=mx+b
Answers
y=2x+0
Explanation:
To find the “b” of this equation you simply see where the line hits the y- intercept , in this case it will be 0. And to find the “m” of this equation you find the rise over run . Hope that helps.
Select the TWO answer choices that apply.
Answers
Sum means the solution to an addition problem
Answer:
B and D! :D
Step-by-step explanation:
Giving brainliest!!!!!! If you don’t know the answer please don’t answer it
Answers
Answer:
The answer is D)
Answer:
D
Step-by-step explanation:
There are mostly 24s or 25s which means that if you were to average the ages it would be somewhere around there and 5 is so far from the rest of that data that it would be considered an extreme value.
Please help with these questions!!!
Q1:
Show all work to factor x^4 − 5x^2 + 4 completely.
Q2:
Show all work to solve 3x^2 − 5x − 2 = 0.
Q3:
Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it.
f(x) h(x)
f(x) = −4(x − 8)^2 + 3 graph of negative 1 times the quantity of x minus 3 squared, plus 2
Q4:
The functions f(x) = (x + 1)^2 − 2 and g(x) = −(x − 2)^2 + 1 have been rewritten using the completing-the-square method. Apply your knowledge of functions in vertex form to determine if the vertex for each function is a minimum or a maximum and explain your reasoning.
Answers
Answer:
Step-by-step explanation:
Q1: (x-1) * (x+1) * (x-2) * (x+2)
Q2: x'1 = -1/3, x'2 =2
Q3: i dont get this one sry
Please help with this question,Best answer will be marked as brainliest-
convert the following equations in statement form-
(i) 2x - 1 = 8
(ii) 7y + 3 = 10
(iii) 3y/7 = 1
Answers
ii)seven times any number (x) plus 3 equals 10
iii) three times any number (y) divided by 7 equals 1
Not sure if this what your looking for but hope it helps?!
Please help me with this! I will give brainliest!
Answers
radius= 10
diameter= 20
circumference formula: C = 2•pi•r
circumference: 62.8
area formula: A = pi•r^2
area: 314
2.
radius= 6
diameter= 12
circumference formula: C = 2•pi•r
circumference: 37.68
area formula A = pi•r^2
area: 113.04
hope this helps!
Which choice below reflects the random sample of the 10 dollar amounts you found?
Question 3 options:
4.67, 4.06, 4.75, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, and 5.58
4.67, 4.06, 4.94, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, and 5.58
6.18, 4.06, 4.94, 7.09, 4.10, 3.12, 4.91, 4.05, 5.00, 5.58
6.18, 4.06, 4.94, 7.09, 4.10, 3.12, 4.86, 4.05, 5.00 and 5.58
Answers
Need help with question 4 :(
Answers
please help with this
Answers
Answer:
Y=2x+1
Step-by-step explanation:
The ad costs $2 per day(x) + the flat service of $1.
(1) day: $3=2(1)+1 (3) days: $9=2(3)+1
Answer:
Y=2x+1 Hope it helps you
Step-by-step explanation:
If you can help with this problem I'll give u brainliest. You can only use each number once and there's no need to give an in-depth explanation, just where each number goes.
Answers
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Step-by-step explanation:
PLEASE HELP ME BRAINLISET FOR RIGHT ANSWER!!
Answers
Answer:
1. No, Student 1 did not make any errors. However, their use of a ruler, or lack of thereof, could result in a lack of accuracy.
2. The student manually found the points and connected them together, doing so for both A and B and thus finding the intersection.
3. Since there is no formula used, the result may not be accurate. The student can only guess the position of the intersection, not know exactly (i.e. when the points are positioned at decimal numbers.)
Answer:
for answer 1 its no
for 2 the person found the points and connected them
for 3 no formula so its not accurate
my brother is in high school and this is what he told me it was if its wrong im sorry my brother is an idiot lol
i hope u have an amazing day and i hope this helps and i hope this is right :)
David worked seven hours and earned $117.25. If he earned $670, how many hours did he work?
Answers
I believe the answer is 78557.5 hours
Answer:
40 hours
Step-by-step explanation:
$117.25 / 7 hours = $16.75 an hour
$670 / $16.75 = 40 hours
The distance from a driveway to the closest house is 12,672 feet. How far is that in miles? (1 mile = 5280 feet)
A) 2.2 miles
B) 2.4 miles
C) 4.2 miles
D) 12 miles
Answers
12,672 ft/ 5,280 ft = 2.4miles
Triangles ABC and RST are similar. Find ST.
Answers
Set up;
(15^2)(CB) = (7.5^2)/(ST)
(15^2)/(5) = (7.5^2)/(ST)
Cross-multiply to find ST.
*If there is a decimal, write it to the nearest tenth (1 decimal place)*
Mean:
Median:
Mode:
Range:
Answers
Answer:
Mean= 3.90 (4)
Median= 2
Mode= 2
Range= 4
Answer:
mean: 3.9
Median: 2.0
mode: 2.0
Range: 12
Step-by-step explanation:
I WILL GIVE BRAINLIEST!!!! ANSWER CORRECTLY OR YOU'RE GETTING REPORTED/BANNED!
Answers
Answer:
96 degrees
Step-by-step explanation:
The three angles in a triangle add up to 180 degrees. if angle one is 42 the the opposite angle is also 42. 42+42= 84 . Then 180-84 = 96 which would be the last remaining angle. Since the bottom and top triangle are the same the same is true for the bottom triangle.
15 point, please help :>
Answers
wouldn't it be b and d
Matteo was told he could spend AT MOST $80 to spend at the mall. He bought lunch for $25. He wants to buy phone cases for his friends. If the phone cases cost $5. How many phone cases can he buy?
Write and solve the inequality for each word problem
Answers
Hope it helps
Please see image below
Answers
Answer:
30
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
I think