The 40-ft-long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. Determine the required gap d so that the rails just touch one another when the temperature is increased from T1=-20F to T2=90F. Using this gap, what would be the axial force in the rails if the temperature rises to T3=110F? The cross-sectional area of each rail is 5.10 in2
Answer:
um hola
Step-by-step explanation:
what is the slope of (-3,2) (-5,-2)
what is the slope of (7,1) (1,-7)
Answer:
The slope of the points (-3,2) (-5,-2) is 2
The slope of the points (7,1) (1,-7) is 4/3
Step-by-step explanation:
Use rise over run (y2 - y1) / (x2 - x1)
Plug in the points given and find the slopes:
(y2 - y1) / (x2 - x1)
(-2 - 2) / (-5 + 3)
-4/-2
= 2
Find the next slope:
(y2 - y1) / (x2 - x1)
(-7 - 1) / (1 - 7)
-8/-6
= 4/3
The slope of the points (-3,2) (-5,-2) is 2
The slope of the points (7,1) (1,-7) is 4/3
2 cm X 2.4 X ? = 10.08cm
Answer:
2 × 2.4 = 4.8
10.8÷ 4.8 = 2.1cm
A clothing store uses a markup of 40% on all items they purchase to sell, find the markup is the original cost was 10.2
Please help I’m desperate
Answer:
$14.28
Step-by-step explanation:
you have to find 40% of 10.20 which is 4.08. Then you add that to 10.20 and you get 14.28. (please give brainliest)
Answer:
4.08
Step-by-step explanation:
How do I find the missing sides to this special triangle?
Answer:
willywonka
Step-by-step explanation:
chile i don't even know
Solve 2х + 4 > 16.
А. x> 6
В. x<10
C. x> 10
D. х< 6
Answer:
The answer is x > 6.
Reasoning:
2x + 4 > 16You have to subtract 4 from both sides:2x + 4 > 16
-4 > -4
2x > 12
16 subtract from 4 is 12. You then divide the 12 by the 2.2x > 12
2 2
x > 6
You then get the result of x > 6.Which of the following rules represent the function graphted
F(x)=1/2x
F(x)=x
F(X) = x + 2
Answer: F(x) = x
Step-by-step explanation:
y = mx + b is the base equation
m = the slope slope equals the increase of y over x
b = the y intercept
y = 1/1 x + 0
so y = x
or f(x) = x
Using the greatest common factor, reduce the fraction 15/20
Answer:
using the formula the answer is 3/4
Sheryl has a basket of ripe apples and peaches. The number of apples in the basket is 12 more than twice the number of peaches. If there are 36 apples in the basket, there are (Your answer here ) peaches in the basket
1.49
Divided by 7.4 rounded to the nearest tenth
Answer:
0.2
Step-by-step explanation:
[tex]\frac{1.49}{7.4}[/tex] = 0.20135135, but rounded to the nearest tenth gives you 0.2.
Si el tamaño de una bacteria es 1,59 x 10-3 mm, ¿cuántos átomos de oxígeno caben a lo largo de ella? (Sabiendo que: el ancho de un átomo de oxígeno aprox. Es 4,804 x 10-9 cm).
An.
Step-by-step explanation:
HELP ASAP PLEASE . CONVERT TO STANDARD NOTATION
Answer:
0.000425 and 62570000000.
Step-by-step explanation:
Answer:
1) 425000
2) 62.570000
Step-by-step explanation:
There are 5 under the 10.
1) 10 x 10 x 10 x 10 x 10 = 100000
100000 x 4.25 = 45000
2) There are 7 under the 10.
10 x 10 x 10 x 10 x 10 x 10 x 10 = 10000000
10000000 x 6.257 = 62.570000.
If you don't understand, count the "0's" and times then by 1 and 0's.
Two television stations are running the same advertisement. One television stations runs the advertisement eveey 24 minutes and the other television station runs the advertisement every 18 minutes. Both stations have the advertisement on right now. How many minutes until both stations will have the advertisement on again at the same time?
Answer:
72 minutes
Step-by-step explanation:
Given that:
Advert runs on :
Station 1 : every 24 minutes
Station 2 : every 18 minutes
Both have the advert running presently ; How many minutes until both stations will have the advertisement on again at the same time?
To obtain the time the advert will run again at the same time on both stations, we find the Lowest common factor of 24 and 18
_2__24 ____18
_2__12_____9
_2__6_____ 9
_3__3 _____9
_3__1_____ 3
____1_____1
2 * 2 * 2 * 3 * 3 = 72
After 72 minutes
Dennis brought 5 cans of slime for $23.50.what was the unit rate per can?
Answer:
$4.70
Step-by-step explanation:
23.50/5=4.7
$4.70 per can of slime
wels at its next
3. The Henderson Hawks minor-league baseball team is giving away baseballs an
game. The balls cost $3 each and the towels cost $2 each. The team wants to give away
200 items and nave 5000 to spend. How many of each item should the team give away Show your
work or explain your reasoning.
This question is not correctly written
Complete Question
The Henderson Hawks minor-league baseball team is giving away baseballs an
game. The balls cost $3 each and the towels cost $2 each. The team wants to give away 200 items and have 500 to spend. How many of each item should the team give away Show your
work or explain your reasoning.
Answer:
They should give away 100 balls and 100 towels
Step-by-step explanation:
Let the number of balls = x
Let the number of towels = y
x + y = 200........ Equation 1
y = 200 - x
$3 × x + $2 × y = $5000
3x + 2y = 5000...... Equation 2
3x + 2(200 - x)= 5000
3x + 400 - 2x = 5000
Collect like terms
3x - 2x = 500 - 400
x = 100
Number of balls to be given away = 100
Note:
y = 200 - x
y = 200 - 100
y = 100
Number of towels to be given away = 100
Therefore, they should give away 100 balls and 100 towels
The answer is = 5/2 x 15/2
Answer:
I think the answer is 5/2 x 15/2.
Answer:
75/4
But as a mixed Number: 18 3/4
Let me know if I'm wrong.
Please make brainliest.
Solve the equation x32 +10 =118
1. x =36
2. x = 6
3. x = 108
4. x = -3128
Answer:
none are correct. The correct answer is x= 3 3/8
Step-by-step explanation:
Enter the missing values in the area model to find 8(8k + 9)
The area of a rectangular model is 64k²+72.
Given that, the length of a rectangle = 8k+9 units and the width of a rectangle = 8 units.
What is the area of a rectangle?The area occupied by a rectangle within its boundary is called the area of the rectangle. The formula to find the area of a rectangle is Area = Length × Breadth.
Now area of a model is
(8k+9)×8
= 8×8k+8×9
= 64k²+72
Therefore, the area of a rectangular model is 64k²+72.
To learn more about the area of a rectangle visit:
https://brainly.com/question/20693059.
#SPJ2
72÷(x−11)=8 i am having trouble
Hope u like it
PLZ MARK ME AS BRAINLIEST ♥️
I have 120 blocks. Each block is one of 2 different materials, 3 different colors, 4 different sizes and 5 different shapes. No two blocks have exactly the same all four properties. I take two blocks at random. What is the probability that these two blocks have exactly two of these four properties the same?
Answer: 0.54
Step-by-step explanatio;
We would have three in common out of 4 characteristics (4 out of 4 is not possible). There are 4 possible ways to share 3 out of 4 characteristics.
Denoting the characteristics as {M,C,Si,Sh} so P(B2={1,1,1,0}|B1={1,1,1,0}) is the probability that box 2 shares its first three characteristics with box 1 given that box one has characteristics
We now have
P(B2 has 3 elements in common with B1)=P(B2={1,1,1,0}|B1={1,1,1,0})xP(B1={1,1,1,0})+P(B2={1,1,0,1}|B1={1,1,0,1})xP(B1={1,1,0,1})+P(B2={1,0,1,1}|B1={1,0,1,1})xP(B1={1,0,1,1})+P(B2={0,1,1,1}|B1={0,1,1,1})xP(B1={0,1,1,1})
P(B2 has 3 elements in common with B1)=(4x5x24+3x4x30+2x3x40+1x2x60)1120x119= 0.084
which is close enough to the value from the simulation code (modified to count the number of 3-ties)
Now, I use the same reasoning to compute:
P(B2 has 2 or more elements in common with B1)=(19x20x6+11x12x10+9x10x12+14x15x8+7x8x15+5x6x20)1120x119= 0.54
Equation: (2-1)((3-1)+(4-1)+(5-1)) + (2)((3)+(4)) + (12) = 35 with a total of 119 possibilities.
answer: 35/119
f-1(x) = (3х – 5)2 + 12
Answer:
i think its 3 if im not mistaken
Step-by-step explanation:
Victoria has $30 to spend at the fair. Admission cost $7. Ride tickets cost $0.75 each.
Write and solve an inequality that represents the number of ride tickets, she can purchase.
(5 points)
Step-by-step explanation:
30-7=23 dollars remained
let x be the tickets number
so 0.75*x=23
x=23/0.75
x=31 at least.
The side length of a cube can be represented by the expression 2x⁵. If the sifr length is doubled, write an expression to represent the new volume of the cube.
Answer:
64x⁸
Step-by-step explanation:
Given l=2x⁵
When side length is doubled,
It becomes 4x⁵
Now volume of cube is a³
New volume=(4x⁵)³
=64x⁵⁺³
=64x⁸
Divide. Do not round your answer.
38.43
÷
7
=
Answer:
5.49
Mental or simplified math may be used to solve such equation.
Does anyone know how to do graphing stories?
Answer:
4.5.6.7zr5r5xtdxtdxycfcff5cc ttcgc tc tcc
Step-by-step explanation:
i don't knowt7c6xrdxydc6tvg6vgv6g5cctft vy ggcgcg5gc5
BRAINLIST! I WILL GIVE BRAINLIST!!!
Each of the following tables defines a relationship between an input x and an output y. Which of the following relationships do NOT represent functions?
A washer and dryer cost $748 combined, the washer costs $93 more than the dryer. What is the cost of the dryer?
long division how 2 do it
Answer:
1.Divide the tens column dividend by the divisor.
2.Multiply the divisor by the quotient in the tens place column.
3.Subtract the product from the divisor.
4.Bring down the dividend in the ones column and repeat.
Step-by-step explanation:
hope it helps
Please mark Brainliest
Four pounds of almonds cost $30, 7 pounds of almonds cost $52.50, and 12 pounds of almonds cost $90. Which equation gives the total cost y of x pounds of almonds?
Answer:
y=7.5x
Step-by-step explanation:
hey what's (5-9)² divided by 2(-4)+(-17)
Answer: It's -49
Step-by-step explanation:
:)