Answer:
Length = [tex]57.5\ \text{inches}[/tex]
Width = [tex]18\ \text{inches}[/tex]
Step-by-step explanation:
The scale of the toy train is [tex]\dfrac{2}{9}[/tex]
So, the dimensions of the toy train is [tex]\dfrac{2}{9}[/tex] times the actual dimensions of the train.
The dimensions of actual train is [tex]\dfrac{1}{\frac{2}{9}}=\frac{9}{2}[/tex] times the toy train's dimensions.
Length
[tex]15\times \dfrac{9}{2}=57.5\ \text{inches}[/tex]
Width
[tex]4\times \dfrac{9}{2}=18\ \text{inches}[/tex]
The length of the railroad car on the long island railroad is 57.5 inches.
The width of the railroad car on the long island railroad is 18 inches.
Please Help!!!!!!!!!!
Is each line parallel, perpendicular, or neither parallel nor perpendicular to a line whose slope is 2/5?
line n, with slope -5/2
line m, with slope 5/2
line p, with slope 2/5
Answer:
Step-by-step explanation:
n is perpendicular. - 1/(2/5) = - 5/2. n is the negative reciprocal of the given line.
m is neither.
p is parallel to the given line. For example y = 2/5x
and y = 2/5 x + 9 are parallel to each other.
pls help ill give brainlist
Answer:
F
Step-by-step explanation:
The rise is 8 and run is 6
Answer:
The answer is J) y=-4/3x+8
What are the x-intercepts of the function y = x2 - X - 6?
Answer:(3,0) , (-2,0)
Step-by-step explanation:To find the x-intercept, substitute in 0 for y and solve for x
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]f(x) = {x}^{2} - x - 6 [/tex]
[tex]f(x) = (x - 3)(x + 2)[/tex]
[tex]0 = (x - 3)(x + 2)[/tex]
_________________________________
Hint :
[tex]a \times b = 0[/tex]
[tex]a = 0 \: \: \: or \: \: \: b = 0[/tex]
_________________________________
Thus ;
[tex] x - 3 = 0[/tex]
Add sides 3
[tex]x - 3 + 3 = 0 + 3[/tex]
[tex]x = 3[/tex]
Or
[tex]x + 2 = 0[/tex]
Subtract sides 2
[tex]x + 2 - 2 = 0 - 2[/tex]
[tex]x = - 2[/tex]
Thus the x-intercepts are (( - 2 )) and (( 3 )) .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Mason breaks on average 1.5 pencils each day. How many pencils will he break in a school week?
Answer:
how long is the school week??
Answer:
He will break 7.5 pencils during a 5-day school week!
Tommy bought stamps at the post office. Some of the stamps had a snowflake design, some had a truck design, and some had a rose design. Tommy bought 14 snowflake stamps. He bought 5 more truck stamps than snowflake stamps, and 5 fewer rose stamps than truck stamps. How many stamps did Tommy buy in all? Show your work, how you came up with the answer.
Answer:
47
Step-by-step explanation:
s = Number of stamps with snowflake design = 14
Number of stamps with truck design is 5 more than snowflake design
[tex]t=s+5\\\Rightarrow t=14+5\\\Rightarrow t=19\ \text{stamps}[/tex]
Number of stamps with rose design is 5 fewer than truck stamps
[tex]r=t-5\\\Rightarrow r=19-5\\\Rightarrow t=14\ \text{stamps}[/tex]
Total number of stamps
[tex]s+t+r=14+19+14\\ =47[/tex]
So total number of stamps Tommy bought is 47.
What is the domain of this function in the graph below?
What is the interval?
Can someone please help me with this problem ? I would love y’all forever !
What is the slope of the line through (-7,-8)(−7,−8)
Answer:
the slope would be 0
Step-by-step explanation:
this is because those are the same 2 points
Solve 2|x + 2| – 3 ≥ 0
Answer:
2x+1
Step-by-step explanation:
Answer
[tex]x[/tex] [tex]\geq[/tex] [tex]-\frac{1}{2}[/tex]
Step-by-step explanation:
I'm learning this to but I hope this helps :)
The area of a circle, in terms of π, is 196π m2.
Find the value of the radius.
Step-by-step explanation:
if area of circle = pi times radius^2,
area of circle divided by pi = radius^2
so, square root (area of circle divided by 2) = radius.
so, 196pi = m2
approx 616
616=m2
sqrt 616 =m
approx value of radius is 25 or 24.8
pls mark this as brainliestttt
matt is playing a game. he gains 7 points, loses 10 points, gains 2 points, and then loses 8 points. what is the final score?
Answer:
-9 points
Step-by-step explanation:
He starts at 0 but gains 7 [7] then loses 10 [-3] gains 2 [-1] and loses 8 [-9]
What is the square root of 40000 step by step
Thx for everything that answers
The answers 200 of u have an iPhone u can ask siri what the square root of whatever number is and it will tell u the correct answer
Given: m∠PRS = 2x + 12
m∠SRT = 6x + 8
∠PRS and ∠SRT are a linear pair
Prove: m∠PRS = 52
-make sure to include statements and reasonings like it shows in the screenshot
Answer:
See Below.
Step-by-step explanation:
1) Given:
[tex]\angle PRS\text{ and } \angle SRT \text{ are a linear pair.}[/tex]
2) Definition of Linear Pair:
[tex]m\angle PRS+m\angle SRT=180[/tex]
3) Given:
[tex]m\angle PRS=2x+12[/tex]
4) Given:
[tex]\displaystyle m\angle SRT=6x+8[/tex]
5) Substitution Property:
[tex](2x+12)+(6x+8)=180[/tex]
6) Combine Like Terms:
[tex]8x+20=180[/tex]
7) Subtraction Property of Equality (subtract 20 from both sides):
[tex]8x=160[/tex]
8) Division Properety of Equality (divide both sides by 8):
[tex]x=20[/tex]
9) Given (this step is optional. You don’t have to include this):
[tex]m\angle PRS=2x+12[/tex]
10) Substitution:
[tex]\displaystyle m\angle PRS=2(20)+12[/tex]
11) Multiplication:
[tex]m\angle PRS=40+12[/tex]
12) Addition:
[tex]m\angle PRS=52[/tex]
Answer:
sorry i dont realy understand that
Step-by-step explanation:
The three-digit number "ab5" is divisible by 3. How many different three-digit numbers can "ab5" represent?
Answer:
30
Step-by-step explanation:
I can't prove this, but I can tell you the answer.
30.
a = 100 s digit
b = 10 s digit
5 is always the units digit.
I'm pretty sure that 30 is the correct answer.
What an interesting question. If I find out how it is done, I'll post it in the comments.
I can say this much.
a + b + 5 must be divisible by 3.
a = 1 b = 9 + 5
a = 1 b = 6 + 5
a = 1 b = 3 + 5
a = 1 b = 0 + 5
===============
Three more are obtained by interchanging the 100s and 10s digit except for b = 0
a = 9 b=1 + 5
a = 6 b =1 + 5
a = 3 b= 1 + 5
==================
a = 2 b = 2 + 5
a = 2 b = 5 + 5
a = 2 b = 8 + 5
only 2 more are obtained by interchanging the 10s and 100s digit
=============
a = 3 b = 4 +5
a = 3 b = 7 +5
You can't go any further. You get 2 more by interchanging the b and a digits.
=============
I hope you see what I've done here. I don't think this is an exact proof, but it is an exhaustive search.
Mark the additive inverse of each integer!
Answer:
12, -12
21, -21
-11, 11
17, -17
-21, 21
how do you write 6.4 × 10^1 in standard form?
Answer:
64
Step-by-step explanation:
6.4 * 10^1
is the same as:
6.4 * 10
= 64
Calcula el numero de vueltas ,por minuto que, da la polea pequeña mienta la grande da 40 vueltas . Sabiendo que cada polea gira de manera que el radio y el numero de vueltas son inversamente proporcionales
Esta pregunta esta incompleta
Pregunta completa
Calcula el número de vueltas por minuto que hace la polea pequeña mientras que la grande hace 40 vueltas. Sabiendo que cada polea gira de manera que el radio y el número de vueltas son inversamente proporcionales.
El radio de la polea pequeña = 3 cm.
El radio de la polea grande = 9 cm
Answer:
120 vueltas por minuto
Step-by-step explanation:
El radio y el número de vueltas son inversamente proporcionales.
Por lo tanto
R = Radio
T = El número de vueltas por minuto
R ∝ 1 / T
R = k / T
Donde k es constante de proporcionalidad
Polea grande
R = 9 cm
T = 40 vueltas
9 = k / 40
k = 9 × 40
k = 360
Debemos encontrar el número de vueltas para la polea pequeña, por lo tanto,
R = k / T
k = 360, R = 3 cm
3 = 360 / T
3 × T = 360
T = 360/3
T = 120 vueltas
El número de vueltas de la polea pequeña = 120 vueltas por minuto
What is the solution to the equation?
Pls help ASAP
Answer: 12 1/2
Step-by-step explanation:
its easy bruh what grade you in this is 6th grade stuff
Estimate 7 x 522 ns
3.866 microseconds? 7 x 522 nano seconds = 3.86600 ms
HELP PLEASE ILL GIVE U 26 POINTS
Christo graphs AB with endpoints A( -3, -2 ) and B ( -1, -2 ) what are the endpoints of the image after a reflection of AB across the x axis?
1. (-3,2) and (-1,2)
2.(-3.-2) and (-1,-2)
3. (1,-2) and (3,-2)
4. (2,3) and (2,1)
5. none of the above
Answer:
1. (-3,2) and (-1,2)
Step-by-step explanation:
Reflection over x axis results in change y-coordinates to opposite sign and x-coordinates remain as is
So the coordinates become:
A(-3, -2) → A'(-3, 2)B(-1, -2) → B'(-1, 2)Correct option is the first one
I need help I dont wear to start
Answer:
Yes! it is there are straight across from each other and will never touch Hope I helped!
2(t+1)=10 what does t equal
Answer:
t = 4
Step-by-step explanation:
1. 2*t = 2t
2. 2*1 = 2
3. 2t+2 = 10
4. 10-2 = 8
5. 2t = 8
6. 8/2 = 4
7. t = 4
Answer:
t = 4
Step-by-step explanation:
2(t + 1) = 10
2t + 2 = 10
2t = 10 - 2
2t = 8
t = 8 ÷ 2
t = 4
-TheUnknownScientist
A recent survey by the alumni of a major university indicated that the average salary of 10,000 of its 300,000 graduates was $125,000. What is the Population?
Answer:
The population is the total number of the universities graduates i.e [tex]N = 300,000[/tex]
Step-by-step explanation:
From the question we are told that
The number of students that are consider is n = 10,000
The total number of graduates is [tex]N = 300,000[/tex]
The mean is [tex]\= x = \$125 , 000[/tex]
Here the population is The total number of graduates with value [tex]N = 300,000[/tex], this is because a population is the pool from with a sample is drawn and in this case the pool is [tex]N = 300,000[/tex] while the sample with is drawn is n = 10,000
IM IN NEED OF HELP .!!Antonio is at Best Buy and all TV's are 30% off. He finds a 75" OLED that he
wants, the price is $1500. What is the discount amount and how much did he
pay for the TV? Write and equation
Answer:
$450. The amount Antonio bought the tv for was $450.
Step-by-step explanation:
If all the tv's are 30%, multiple 30 by the price of the tv he wants, giving you 45000. Then, divide by 100 because a percent is out of a hundred, giving you $450
Formula:
(30x1500)/100
The ratio of blueberries to strawberries in a fruit salad is 4:3. If there are 45 strawberries in a salad, how many blueberries are there.. Blueberries 4 Strawberries 3
Answer:
60 blueberriesStep-by-step explanation:
Given the ratio of blueberries to strawberries in a fruit salad to be 4:3. The total ratio = 4+3 = 7
If there are 45 strawberries in the salad then we can first calculate the total mixture of both as shown;
amount of strawberries = 3/7 * x = 45
x is the total amount of mixture
from the expression;
3x/7 = 45
cross multiply
3x = 7*45
3x = 315
x = 315/3
x = 105
The amount of blueberries present = 105 - 45 = 60
Hence the amount of blueberries present is 60 blueberries
Write the equation that represents a 15% increase of $120.
Answer:
$138
Step-by-step explanation:
if 100 is 15 then you add 1.15 or 1% of 15
Which of the following expressions is equal to (2g)5?
10 · g · g · g · g · g
2g · 2g · 2g · 2g · 2g
2 · g · g · g · g · g
10g
Answer:
The answer is choice b.
Step-by-step explanation:
I took a quiz with the exact same question on it. hopefully I'm not too late ! <3
The expression is;
⇒ 2g * 2g * 2g * 2g * 2g
Option 2 is true.
Given that;
The expression is;
⇒ (2g)⁵
We have to find the equivalent expression.
What is Powers of a number?
The powers of a number is express how many time the numbers are repeated.
The expression is;
⇒ (2g)⁵
Since, The power of 2g is five.
Hence, It can be repeat five times as,
(2g)⁵ = 2g * 2g * 2g * 2g * 2g
Hence, The equivalent expression is;
⇒ 2g * 2g * 2g * 2g * 2g
Option 2 is true.
Learn more about Powers of a number visit:
https://brainly.com/question/28400450
#SPJ2
Find −523−16. Write your answer as a mixed number in simplest form.
Answer:
(-523) - 16 is -539
Step-by-step explanation:
mathmathmathmathmsthmatj
A line has a slope of -3/4 and passes through the point (-5, 4). Which is the equation of the line?
Answer: A
Step-by-step explanation:
y-4 = -3/4(x+5)
y = -3/4x+1/4
Answer: the equation is y= 3/4 times + 1/4 is your answer
私はこれをGoogle翻訳を使って書き留めています。地面からうんちをすくい取ります。今やれ！
Answer:
yessssss
Step-by-step explanation:
thanks ;p;p;