Answers
Answer:
a=4
b=20
c=16
d=145
e=40
Step-by-step explanation:
Related Questions
URGENT will give brilliant mark For the reaction 2Na + Cl2 ------ 2NaCl, how many grams of sodium chloride can be produced from 500g of chlorine? ( atomic masses : Na = 23 , Cl = 35.5 g/mol) *
1 point
112 g
319 g
409 g
825 g
Answers
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.
6 - 3x = -6 PLEASE ANSWER FAST I NEED HELP!!!
Answers
Answer:
4
Step-by-step explanation:
Subtract 6 to both sides so you can get -12. Next divide -3 from x and -12. Finally your answer should be positive 4. Mark me brainily please if it is correct
Kiran is about to start hiking on a trail that is 1.8 miles long. In his past hikes on the same trail, he had walked at a constant rate of 2.4 miles an hour, which is 0.04 mile a minute. Function (F) represents Kiran's remaining distance on the trail, in miles, t, minutes after he starts walking. Write an equation to represent this function. Use function notation.
Answers
Answer:
F(t) = 1.8 - 0.04t
Step-by-step explanation:
Given that :
Length of trail = 1.8m
Walking speed = 0.04 miles per minute
Distance left, t minutes after one statues walking :
Total distance covered after t minutes = speed * time = 0.04t
Distance left after t minutes :
Initial distance - distance covered
Hence,
F(t) = 1.8 - 0.04t
what's x + 2y
( x = 2, y = 1 )
Answers
Answer:
4
Step-by-step explanation:
x + 2y = 2 + 2(1)
= 2 + 2
= 4
8m +7=8m+5
PLEAE HELP ASAP
Answers
Answer: 0 = − 2, Is the answer I think. Sorry if it's wrong.
A basketball team won 2 out of every 3 games played. The team played a total of 15 games. How many games did the team win?
Answers
Solutions of 3x+2y=4 and 6x+4y=8
please tell me how many solutions there are , I will mark you brainiest!!!!
Answers
Answer:
Infinite solutions
Step-by-step explanation:
1) First, you can solve this easily by elimination. Multiply the first equation by -2 in order to cancel out terms when adding to the second equation.
2) Then, add the new set of equations together. However, everything cancels out, bringing us to 0 = 0. This means that the lines the equations make must be the same. Thus, all real numbers must make this equation true, meaning that there are infinite solutions.
Step-by-step explanation:
3x + 2y = 4
2y = -3x +4
y = -3/2x +2
6x+4y = 8
4y = -6x +8
y = -6/4x + 8
y = -3/2x + 8
same slope, bit different intercepts. they are parallel. no solutions
If 12x – 20 =
10x + 20 what is the value of 3x ?
Answers
Answer: 3x=60
Step-by-step explanation:
12x-20=10x+20
X=20
3(20)= 60
Write an equation of a line in slope-intercept form that passes through the point (8, 9) and has a slope of 3.
Answers
Answer:
y=3x-15
Step-by-step explanation:
y-y1=m(x-x1)
y-9=3(x-8)
y=3x-24+9
y=3x-15
Line A passes through the points (-4, 3) and (-2, -1). Line B passes through the points (-4, 4) and (-5, 7). At what point do the lines intersect?
Answers
Answer:
he
Step-by-step explanation:
njducnekm sjdnbdis djsbsj susbshd dbid
In circle N with the measure of arc MP= 98°, find mZMNP.
P
M
N
Answers
Answer:Use the equation to find the arc length. KCJ or 105. is about 13.74 centimeters.
Step-by-step explanation: Use the equation to find the arc length. KCJ or 105. is about 13.74 centimeters.
Pls help me, I don't know how to do it?:(
Answers
Answer and Step-by-step explanation:
Alot of these can be solved with the table up above the problems.
A, B, and C.
According to the table, every time a value has an exponent of 0, it would equal to 1. Since all A B and C values follow the 0 exponent, their value is 1.
D.
According to the table, when we have a negative exponent, the number gets turned into a fraction of [tex]\frac{1}{x^x}[/tex]
Since our value is 9^-2, do as followed :
[tex]\frac{1}{9^2}[/tex]
Solve what is 9^2 :
[tex][\frac{1}{81} ][/tex]
E.[tex]\frac{1}{x^{-5} }[/tex]
This question is different, since we have to go backwards, we have to switch the negative exponent to a positive exponent and rid the fraction.
[tex]x^5[/tex]
F.[tex]5a^3b^{-2}[/tex]
Since we have one negative exponent, follow the fraction rule but instead of having one as the numerator, have 5a^3.
[tex]\frac{5a^3}{b^{2}}[/tex]
Fill in the table :[tex]-3^4 = -3*-3*-3*-3=-81[/tex]
Since -3 is in parenthesis, we can rid the negative along with the parenthesis :
[tex](-3)^4=3^4=3*3*3=81[/tex]
Follow the negative exponent rule :
[tex](-3)^{-4}=\frac{1}{(-3)^4} =\frac{1}{3^4} =\frac{1}{3*3*3*3}= \frac{1}{81}[/tex]
Follow the negative exponent rule yet again :
[tex]-3^{-4}=-\frac{1}{3^4} =-\frac{1}{3*3*3*3} =-\frac{1}{81}[/tex]
2/8=3/x+2
Solve the problem
Answers
Step-by-step explanation:
2/8=3/x+2
We move all terms to the left:
2/8-(3/x+2)=0
Domain of the equation: x+2)!=0
x∈R
We get rid of parentheses
-3/x-2+2/8=0
We calculate fractions
There is no solution for this equation
Tell whether the triangle with the given side lengths is a right triangle.
3.6 mm, 7.7 mm, 8.4 mm
The triangle is a right triangle.
The triangle is not a right triangle.
HELP QUICKLY
Answers
Answer:
Monkey says NO
Step-by-step explanation:
Monkey says A^2 + B^2 = C^2. Monkey do math, gets C = 8.5. So close, monkey sad. Not right triangle.
a car manufacturer determines that it's profit, P, in thousands of pesos, can be modeled by the function P(x)=0.001 25x4+x-2, where x represents the number of cars sold. What is the profit at x=150?
Answers
Answer:
use a calculator itl be easy
Step-by-step explanation:
substitute x to 150
=0.00125(x)^4+x-3
=0.00125(150)^4+150-3
WE ARE USING PEDMAS HERE SO BE CARE-FULL parenthesis,exponent,multiplication,division,addition,subtraction
=0.00125(506250000)+150-3
=632812.50+150-3
=632962.50-3
=632959.50
I AM SO SORRY IF IT IS WRONG :)
HELP PLEASE CHECK MY ANSWER!!!
Answers
Answer:
yo que se soy aprendis apenas loco
Answer:
Yes this one is correct and you had solved it right there's nothing to fix its correct
Step-by-step explanation:
1. bottom its supose to be below -16 witch is the bottom on both of the starts where the line starts
2.go up to number 8 on eight.
3. on -3 and on 3 its correct
Mrs. Gilbert is interested in determining how many students spend 4 or more hours doing homework each week. She asks every student who earned Honor Roll for the first semester. Is her survey biased or unbiased?
A. biased, because she didn't ask random students
B. unbiased, because she asked every student on honor roll
C. biased, because she only asked students on honor roll
D. unbiased, because first semester is over
Answers
Answer:
C. Biased, because she only asked students on honor roll.
Step-by-step explanation:
Since Mrs. Gilbert's goal was to find how many students that spent >4 hours and not how many students that earned Honor Roll that spent >4 hours, the data is biased. Choose C.
Mateo is an unsuccessful bitcoin investor. He made a loss of 93% by selling a bitcoin for $637.
At what price did Mateo buy the bitcoin?
Answers
Answer:
$9100
Step-by-step explanation:
Cost price = 100/(100-loss%)* Selling price
CP = 100(100-93)*637
CP = 100/7*637
CP = $9100
The height h is greater than 2.5 meters.
Write an inequality for the word sentence
Answers
Answer:
H > 2.5
Step-by-step explanation:
Greater = >
Lessthan = <
Equal = =
cylinder a has a height of 8 cm cylinder b has a height of 12 find the surface area
Answers
Answer:
You can't answer the question. It is missing essential information. What is the radius of the circle at the end of the cylinder.
Step-by-step explanation:
have a good day
Based on your calculations in the previous problem has the German mark depreciated or appreciated
Answers
Answer:
depreciated
Step-by-step explanation:
Can someone help me answer these questions
Answers
C
D
All in that order hope this helped
Ajay has 170 red ball and 136 green ball.What is the ratio of the red and green balls. best answer will get brainliest mark
Answers
I I found the answer, answer is 359 stop answer dear
I need some more help, I will mark brainliest
Answers
part 2 help? I’ll mark brainliest if correct
Answers
Answer:
Draw a line segment, say 5 cm long.
Below it draw a line segment 10 cm long, or whatever is twice the length!
Hope that helps!
Step-by-step explanation:
The difference of x and 3y is 12, and 5x less 2y is 73. What are the values of x and y?
Answers
Answer:
y=1 x=15
Step-by-step explanation:
Answer:
x=15, y=1
Step-by-step explanation:
can someone help me please
Answers
Answer:
11. Jason needs to sell 35 bird feeders to make a profit of $135.12. 80 guests must attend the picnic to pay for the permit.According to the the table, what is the rate of change between Tuesday and Wednesday?
Answers
Answer:
Where is the table?
Step-by-step explanation:
. 238/x = 17
HELP OMG HELP!!!!
Answers
Answer:
Step-by-step explanation:
Answer:x = 14
My Step-by-step explanation:
Turn the problem around by switching around the division:
238/x=17 means 238/17=x so x = 14.
Can you answer the Situation For 50 points
Problem Situation: Jimmy is reading a book for school that is 175 pages long. So far, He has read 50 pages. She can read 25 pages per hour. How many hours will it take her to finish the remainder of the book?
Which answer choice best represents the unknown quantity in this problem
A: h, the number of hours it will take to finish the book
B: p, the number of pages she can read per hour
C: b , the total number of pages in the book
D: a, the number of pages she has already read
Answers
Answer:
a
Step-by-step explanation:
