Answer:
825 g
Step-by-step explanation:
Here's my work:
500g Cl2 l 1mol Cl2 l 2 mol NaCl l 58.5 g NaCl
l 71 g Cl2 l 1 mol Cl2 l 1 mol NaCl
= 823.94 - the rounding can be a little off
The first thing you have to do is convert the 500 g of Cl2 into moles. So you get the mass of Cl which is 35.5, but Cl is diatomic by itself so you multiply 35.5 x 2 and get 71. now on the third column you are comparing the mol ratios of the equation. The equation is 2Na + Cl2 ---> 2NaCl, so you see that there is no coefficient in front of Cl2 so that means there is 1 mol, and then you see that in the product there is a coefficient of 2 in front of NaCl so that means there is 2 moles. Then finally you have to convert the moles backs into grams where you just add the masses of Na and Cl . You multiply across the top and then divide that number by the bottom row.
The scatterplot below was created from a table of values and represents the relationship between the number of seconds spent doing sit-ups and the number of sit-ups completed for some of the members of a physical education class.
Assuming that none of the data points overlap and that all the data points were plotted, how many data points were in the table?
A.5
B.6
C.7
D.8
Answer:
The correct answer is D. 8
Step-by-step explanation:All you have to do is count the data points on the graph.
Have a good day and stay safe!
There were 8 data points in the table.
Option D is the correct answer.
We have,
From the graph of the scatterplots,
We can consider the points as the coordinates:
(10, 15)
(20, 20)
(20, 30)
(20, 40)
(25, 30)
(30, 35)
(35, 45)
(45, 49)
Now,
There are 8 coordinates from the graph.
This means,
There are 8 data points plotted on the graph of the scatterplot.
Thus,
There were 8 data points in the table.
Learn more about coordinates here:
https://brainly.com/question/13118993
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I don't understand stand this
Step-by-step explanation:
step 1. ABCD is an isosceles trapezoid because AD and BC are parallel, AB and CD are congruent
step 2. x = 56° (definition of an isosceles trapezoid)
step 3. x + y + z + 56 = 360 (definition of a quadrilateral)
step 4. y = z (definition of an isosceles trapezoid)
step 5. 56 + 2y + 56 = 360
step 6. 2y = 248
step 7. y = 124°, z = 124°.
Nasim is taking a multiple choice test with a total of 50 points available. Each
question is worth exactly 2 points. What would be Nasim's test score (out of 50) if he
got 5 questions wrong? What would be his score if he got x questions wrong?
Score with 5 questions wrong:
Score with a questions wrong:
Pls help fast 80 points
Answer:
Score with 5 questions wrong = 40 points
x questions wrong = 50 - 2x points
Score with a question wrong = 48 points
Step-by-step explanation:
Total points = 50 points
Points per question = 2 points
Number of questions = Total points / Points per question
= 50/2
= 25 questions
What would be Nasim's test score (out of 50) if he got 5 questions wrong
= Total points - 5 questions * 2 points
= 50 - 5(2)
= 50 - 10
= 40 points
Score with 5 questions wrong = 40 points
What would be his score if he got x questions wrong?
= Total points - x questions * 2 points
= 50 - x(2)
= 50 - 2x
Where x = number of questions
x questions wrong = 50 - 2x points
Score with a question wrong
= Total points - 1 questions * 2 points
= 50 - 1(2)
= 50 - 2
= 48 points
Score with a question wrong = 48 points
LAST QUESTION!!! ANSWER THIS QUESTION PLZZZZ
Answer:
A. 80 yardsStep-by-step explanation:
Corresponding sides have same ratio in similar figures:
75/50 = 120/x x = 120*50/75x = 80Correct option is A
Use the following function rule to find f(3).
f(x) = 8^x
f(3)
=
Answer:
f(3) = 512
Step-by-step explanation:
f(3) = 8^3
f(3) = 512
= 512
BRAINLIST IF U DO IT!!!!!!!!!!!!!!!!!!
Answer:(7,-3)
Step-by-step explanation:
x=7 and y=-3
hope this helps
A. (-2 + -2)+ ( 9 x 5 )
B. ( -2 + 9 ) - ( 5 + 1 )
Step-by-step explanation:
Determine the intercepts of the line.
Y-intercept (____,____)
X-intercept(____,____)
Answer:
y intercept (0, 100)
x intercept (-250, 0)
Step-by-step explanation:
clear from the picture
x/7 - 3 is greater than or less than 7
Answer:
less than
Step-by-step explanation:
pls mark brainliest
hope this helps
Expand and simplify: (x-2)^3
Answer:
Expand (x+2)^3. (x+2)3 ( x + 2 ) 3. Use the Binomial Theorem. x3+3x2⋅2+3x⋅22+23 x 3 + 3 x 2 ⋅ 2 + 3 x ⋅ 2 2 + 2 3. Simplify each term.
simplify the complex rational expression
Answer:
[tex]2(x+2)/x+1[/tex]
Step-by-step explanation:
Answer:
2( x +2 )
x+1
Step-by-step explanation:
to add or subtract expressions expand them to make their denominators the same, multiply 1 time [tex]\frac{x-2}{x-2}[/tex]
since [tex]\frac{x}{x-2}[/tex] and [tex]\frac{x-2}{x-2}[/tex] have the same denominators add them by adding their numerators
combine x + x -2
factor [tex]x^{2}[/tex] - 4
to add or subtract expressions expand them and multiply by 1
have same denominator add them by adding their numerators
do the multiplications in 3 + ( x-2 )(x+2)
combine like terms in 3 + [tex]x^{2}[/tex] + 2x - 2x -4
divide [tex]\frac{2x-2}{x-2}[/tex] by [tex]\frac{-1 + x^{2} }{(x-2)(x+2) }[/tex] multiplying [tex]\frac{2x-2}{x-2}[/tex]
cancel out x-2 in both numerator and denominator
factor the expression that are not already factored
cancel out x-1 in both numerator and denominator
expand the expression
Can someone please answer ASAP!
Answer:
well, where's the question tho?
Answer:
I want to answer but their is no question
I need help with this
There are 1001 pennies lined up on a table. I come along and replace every 2nd coin with a Nickle. Then, replace every 3rd coin with a Dime. Finally, I replace every 4th coin with a Quarter. How much money is on the table?
Answer:
$99.19
Step-by-step explanation:
Problem:
On a table there are 1001 pennies lined up in a row. I come along and replace every second coin with a nickel. Then I replace every third coin with a dime. Finally, I replace every fourth coin with a quarter. How much money is on the table now? Why is twelve important?
Solution:
Our first step was to make a line of pennies (as long as possible) in order to see if we could figure out a pattern that would help us determine the total amount of money on the table.
Then we went through and replace every second coin with a nickel.
Then we went through and replaced every third coin with a dime.
Then we went through and replaced every fourth coin with a quarter.
As a group we then tried to decipher if there was a pattern that would help us determine the total value of coins. We then noticed that there was a pattern of twelve coins.
= $1.19
= $1.19
= $1.19
We determined the number of times the pattern of twelve coins repeated in the 1001 coins:
1001 ÷ 12 = 83 R5
Since we knew that the pattern repeated itself 83 full times and each time the dollar value is $1.19 we counted to determine the cost of the first 996 coins.
$1.19 X 83 = $98.77
Then we added the remaining 5 coins, which cost $0.42
$98.77 + $0.42 = $99.19
Therefore, there is a total of $99.19 on the table.
Since, the lowest common multiple of 2, 3, and 4 is 12, the pattern will repeat itself every 12th coin.
A sequence or pattern in a series of numbers is a number patterns
The amount of money in coins lined up on the table is $99.19
The reason the above value is correct is as follows:
The given parameters are;
The number of pennies lined up on a table = 1,001
The coin with which every second coin is replaced with = A Nickle = 5 Cents
The coin with which every third coin is replaced with = A Dime = 10 Cents
The coin with which every second coin is replaced with = A Quarter = 25 Cents
[tex]\begin{array}{ccc}Coin \ Position&&Coin \ Value \ (Cents)\\1&&1\\2&&5\\3&&10\\4&&25\\5&&1\\6&&10\\7&&1\\8&&25\\9&&10\\10&&5\\11&&1\\12&&25\\13&&1\\14&&5\\15&&10\\16&&25\\17&&1\\18&&10\\19&&1\\20&&25\\21&&10\\22&&5\\23&&1\\24&&25\end{array}[/tex]
From the above values, we have that the first twelve coins are repetitive, therefore, the number of repeating units is the whole number part of 1,001/12 = 83, which gives;
1 + 5 + 10 + 25 + 1 + 10 + 1 + 25+ 10 + 5 + 1 + 25 = 119
The value sum of the 83 repeating 12 units = 119 × 83 = 9877
The value of the first 12 × 83 = 996 coins = 9,877 Cents
The coin in the;
997th position = 1 Cent
998th position = 5 Cent
999th position = 10 Cent
1,000th position = 25 Cent
1,001th position = 1 Cent
The total value of the coins = (9,877 + 1 + 5 + 10 + 25 + 1) Cents = 9919 Cents
9919 Cents = $99.19
The amount of money that is on the table = $99.19
Learn more about number patterns here:
https://brainly.com/question/14294944
please help me !!!!!!
Answer:
Step one
Step-by-step explanation:
she forgot to do -4×-3 in the parentheses
Simplify
2×3^x - 3^x-1 / 18^x × 2^-x
Step-by-step explanation:
Collect like terms: 6∧x - 3∧x - 1/ 18∧x · 2
3∧x - 1/ 18∧x · 2
Calculate the product: 3∧x - 2/ 18∧x
Find common denominator: 54∧x/ 18∧x - 2/ 18∧x =
54∧x - 2/ 18∧x
What is 35% of $2587
Answer:
905.45
Step-by-step explanation:
el treinta y cinco por ciento 35% de 2587 es: 905.45
Find the value of X
please help me its due in an hour
Answer:
Step-by-step explanation:
which point is located at point (-5,2)?
the answer is D
Answer:
point D
Step-by-step explanation:
go to the left 5 spaces (negatives)
go up 2 spaces
What percent of 480 is 160?
A. 0.3%
B. 3%
C. 30%
D. 33.3%
E. 300%
Number 1 please answer need help
Answer:
It is not a function
Step-by-step explanation:
This is not a function because it does NOT pass the vertical line test. The vertical line test is just as it sounds: if you were to draw a vertical line from 3 to -3, it would pass through two outputs for every one input. Therefore, it's not a function.
Giving Brainleist for BOTH answers::MATH
Answer:
D
Step-by-step explanation:
If you have ten feet on one side and 8 feet on another mulitiply and 10 times 8 is 80 so theres your answer
Answer:
Question1 80 cubic feet and question2 is 2100 cubic feet
Step-by-step explanation:
PLEASE HELP I BEEN STUCK ON THIS FOR 20 MINS , 87⋅?=9,526
Are these scalene triangles simila
Answer:
la primera
Step-by-step explanation:
2cm
10
2.5 cm
2.5 cm
2 cm
3 cm
6 cm
5 cm
Answer:
what do you want to do with this
Step-by-step explanation:
A golfer hit a golf ball from a tee box that is 6 yards above the ground. The graph shows the height in yards of the golf ball above the ground as a quadratic function of x, the horizontal distance in yards of the golf ball from the tee box. What is the domain of the function for this situation?
Answer: C. 0 ≤ x ≤ 230
When the A golfer hit a golf ball from a tee box that is 6 yards above the ground so the domain of the function is [0,260].
Calculation of the domain of the equation:Here the domain is the values of 'x' in the function f(x).
the position at which the golfer is hit the ball is (0,6) and the position where the ball hits the ground is (230,0)
So, the domain of the function for this situation is [0,260].
Learn more about domain here: https://brainly.com/question/18573273
Can someone help?
Need to find measure of m, p
Step-by-step explanation:
2p-5=p+5
p=10°
2m=10
m=5
Answer:
m = 5
p = 10
Step-by-step explanation:
In triangle HIJ,
IH = IJ.. (given)
Therefore,
2m = 10
m = 10/2
m = 5
IK is angle bisector of triangle HIJ.
So,
(2p - 5)° = (p = 5)°
2p - 5 = p + 5
2p - p = 5 + 5
p = 10
write 5 3/4 as an improper fraction .
Answer:
15/4
Step-by-step explanation:
Answer:
[tex]\frac{23}{4}[/tex]
Step-by-step explanation:
5 [tex]\frac{3}{4}[/tex] = [tex]\frac{5 x 4 + 3 }{4}[/tex] = [tex]\frac{23}{4}[/tex]
Hope is right!!!
use the circle below to find the angle measures and arc measure
Answer:
We'd need to see the full circle to answer
Step-by-step explanation:
The original price a sweater is $22. This week the sweater is 18% off.
What is the current price of the sweater?
(Pls answer, this is for a TEST!)
Answer:
$18.04
Step-by-step explanation:
18% of 22 is 3.96
subtract 3.96 from 22
Answer:
The sweater is now $18.04
Step-by-step explanation:
18% of 22 is 3.96 so you subtract that from the original price.
Thor and Rusty bought snacks for a party. Thor bought 4 bags of chips and 3 bottles of soda for $10.52. Rusty bought 3 bags of chips and 2 bottles of soda for $7.61. How much did the bags of chips each cost? How much did the bottles of soda each cost?
Answer:
Chips= $1.79
Soda= $1.12
Answer:
chips: $1.79
soda: $1.12
Step-by-step explanation:
x = chips cost
y = soda cost
4x + 3y = 10.52
3x + 2y = 7.61
i used the elimination method by multiplying the first equation by -2
and the second equation by 3
-8x - 6y = 21.04
9x + 6y = 22.83
x = 1.79
solve for 'y':
3(1.79) + 2y = 7.61
5.37 + 2y = 7.61
2y = 2.24
y = 1.12