Answer:
Step-by-step explanation:
: The mass of 4.5 moles of sodium fluoride is 189g
You can view more details on each measurement unit: molecular weight of Fe or grams The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Fe, or 55.845 grams.
Answer:
252g
Step-by-step explanation:
1 mole of fe =56g
therefore 4.5 moles = 4.5×56
=252g
if PQ is reflected across the X-axis, what will be the coordinates of P'Q' repeated?
i think it is a but i am sorry if it wrong
Step-by-step explanation:
Answer:
Graph
Step-by-step explanation:
If point P has coordinates (x1, y1) and point Q has coordinates (x2, y2), and PQ is reflected across the X-axis, the coordinates of the reflected points P' and Q' can be obtained by flipping the y-coordinates of P and Q and keeping the x-coordinates the same.
Therefore, the coordinates of P' will be (x1, -y1) and the coordinates of Q' will be (x2, -y2).
So, if you want to find the coordinates of the reflected line segment P'Q', you just need to take the coordinates of P' and Q' and connect them with a line. The resulting line segment will have endpoints (x1, -y1) and (x2, -y2).
Note that the length of the reflected line segment P'Q' will be the same as the length of the original line segment PQ, but the orientation of the reflected line segment will be reversed with respect to the X-axis.
of the 12 runners in a race, 1 is a man and the rest are women. What is the ratio of the
number of female runners to the total number of runners?
Write your answer as a fraction. Use a slash (/) to separate the numerator and
denominator
Answer:
1:12
1/12
I think:)
Answer:
I think it is 1/12
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
g(r) = 25 - 31
g(4) =
Answer:
-24
Step-by-step explanation:
25-31=-6
-6 times 4=-24
7+x/3=2x-5
Plz help me
The value of x in the given system of equation 7+x/3=2x-5 is 7.2.
What are System of equation?
simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.
There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.
Given a System of equation 7+x/3=2x-5
Simplifying this equation
7+x/3=2x-5
=> 2x - x/3 = 12
=> 5x/3 = 12
=> x = 36/5
=> x = 7.2
Therefore, The value of the x for the given Equation is 7.2.
Learn more about System of equation here:
https://brainly.com/question/12628931
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The juice dispenser in the cafeteria holds 22 1/2 pints of juice. The glasses in the cafeteria only hold 1/4 of a pint of juice. How many full glasses can be served at breakfast?
a.89
b.4
c.44 1/4
d. 356
Answer:
are you sure there isn't a 90?
Step-by-step explanation:
Because there are 4 quarters in a whole, so 22 x 4 = 88, and there are 2 quarters in 1/2 so it would be 88+2, which is 90.
HELP I NEED A FAST ANSWER
Which graph best represents the equation y= 2x+1
Answer:
the first graph
Step-by-step explanation:
I NEED HELP ASAP (PLEASE HELPP) **ill give brainlist**
Answer: $1.11
Step-by-step explanation:
we just divide $5.55 (the cost of 5 sandwiches) and divide it by 5. that gives us the cost of 1 sandwich. and, the answer to 5.55 / 5 = 1.11
Answer:
Each sandwich cost $1.11.
Step-by-step explanation:
All you have to do to solve this is divide 5.55 by 5, giving you 1.11.
Hope this helps!
Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
Answer:
YZ=8
Step-by-step explanation:
1/2*VX=yz
1/2(106-10x)=21-x
106-10x=42-2x
106-42=10x-2x
64=8x
x=8
sub in 21-x
=21-8
=13
Answer:
YZ = 13 units
Step-by-step explanation:
VX = 2YZ
106 - 10x = 2(21 - x)
106 - 10x = 42 - 2x
8x = 106 - 42
x = 8
YZ = 21 - 8 = 13 units
On a 20 sided dice what is the probability that a 11 was rolled?
Answer (round) to the hundredth place value.
Given:
A 20 sided dice is rolled.
To find:
The probability of getting 11.
Solution:
A 20 sided dice is rolled.
On a 20 sided dice, the possible outputs are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20.
Total number of outcomes = 20
Favorable outcomes or number of 11 = 1
Now,
[tex]\text{Probability of getting 11}=\dfrac{\text{Favorable outcomes}}{\text{Total number of outcomes}}[/tex]
[tex]\text{Probability of getting 11}=\dfrac{1}{20}[/tex]
[tex]\text{Probability of getting 11}=0.05[/tex]
Therefore, the probability of getting 11 is 0.05.
Which of the following is a proportion?
9/12=8/10
3/4=9/12
6/8=8/12
12/18=9/16
The second option, 3/4 = 9/12 is a proportion.
Hope this helped! :D
Answer:
B
Step-by-step explanation:
To find the correct proportion you simplify all fractions into their simpliest form. If you do this you'll find that only B has two equivalent fractions
6 The largest possible circle is to be cut from a 12
foot square board. What will be the approxmate
area, in square feet, of the inscribed circle?
(A= ? and <3 3.14)
12 ft
A. 72.?
B. 36t.
2.
D.. 324.ft.
Answer:D
Step-by-step explanation:
Jodie invests $12,000 in a savings account that pays 2% simple interest. How many years will it take for the account to grow to $13,200, if he makes no withdrawals or deposits?
Answer:
4 years
Step-by-step explanation:
Simplify this expression.
3^-3
Answer:
1/27 is the answer
Step-by-step explanation:
It is 1/(3^3) which is 1/27
I need help on both of these ASAP PLEASE
Answer:
#11: last option is answer
#12: first option is answer
Step-by-step explanation:
#11) 5x + 6 ≤ 11
5x ≤ 5
x ≤ 1 to graph this you need a solid dot on 1 and shading to the left
#12) 5p+ 4 > 14
5p > 10
p > 2 to graph this you need an open dot on 2 and shading to the right
Answer:
11. 5x + 6 <= 11.
12. 5p + 4 > 14.
Step-by-step explanation:
11. THE GRAPH shows that x <= 1.
So it is 5x + 6 <= 11 because
5x <= 5
x <= 1.
12. THE GRAPH shows that p > 2.
So it is 5p + 4 > 14.
5p + 4 > 14
5p > 10
p > 2.
2. Atmospheric carbon dioxide (CO 2 ) is believed to be a primary factor in global warming Levels of CO, are increasing because human activities, such as burning fossil fuels, send more CO 2 , into the atmosphere than natural biological processes remove Estimates in 2012 suggested that Earth's atmosphere contained 393 parts per million (ppm) of co 2 with another 2 ppm added each year a) Based on findings of the 2012 study, what function could be used to estimate the atmospheric CO 2 at any time x years after 2012 b) Using your model from part a What level of atmospheric CO 2 can be expected in the year 2025? In what year can we expect atmospheric CO 2 to reach 400 ppm? M o nd c Suppose that omissions from
Answer:
(a)Required relation is 393 + 2x ppm
(b)Amount of [tex]CO_2[/tex] concentration in 2025 is 419 ppm
(c)After 3.5 years concentration of [tex]CO_2[/tex] is 400 ppm
Step-by-step explanation:
From the question it is given that :
Estimated [tex]CO_2[/tex] in atmosphere in 2012 is 393 (parts per million)ppm
[tex]CO_2[/tex] level increasing per year is 2 ppm
(a) Let y be the concentration of [tex]CO_2[/tex] in atmosphere after x years from 2012 then:
y = 393 + 2x ppm
Therefore required relation is 393 + 2x ppm
(b) amount of [tex]CO_2[/tex] in 2025 i.e.,x = 13 years after 2012 is y
y = 393 + 2 x 13 = 393+ 26 = 419 ppm
Therefore, amount of [tex]CO_2[/tex] concentration in 2025 is 419 ppm
(c) give y = 400 ppm and x be the year then
400 = 393 + 2x
2x = 7
⇒ x = 3.5 years
Therefore after 3.5 years concentration of [tex]CO_2[/tex] is 400 ppm
What is the slope of this line? Can someone help because I keep getting 5/2 and it doesn’t look right...
Answer:
2.5
Step-by-step explanation:
You can do rise over run and you get 25/10 which is 2.5 or 5/2. So you are correct
Answer:
2.5
Step-by-step explanation:
Slope = change in y/ change in x
In this case the change in y between two spots is 25 and the change in x is 10. So the slope would be 25/10 which can be simplified to 2.5
Hope this helps :D
Find the volume of this cylinder. Give your answer to 1 decimal place.
Answer: A≈1639.9
Step-by-step explanation:
Hope this helps
P.s. if you want you could give this answer brainliest if it helps :)
Help me please I’ll mark brainliest thank you
Answer:
11/15=x/240
240/15=16
11 x 16=176
11/15=176/240 or rather he completes 176 passes
Step-by-step explanation:
Which is the graph of y=-x-3?
Graph C
Graph B
Graph A
y
yt
X
-1
— Please help <33 ✨
Answer:
If you are talking about y=[tex]y= \frac{3}{4} x -3,[/tex] then the graph would be Graph A.
It took Jeremy 1 minute and 20 seconds to complete one test problem. How long will it take him to complete 6 problems?
Step-by-step explanation:
1 problem = 1 min 20 sec = 80 seconds
6 problems = 80 * 6 = 480 seconds = 8 min.
It will take Jeremy 8 minutes.
Anyone What is 2+2 is
Answer:2+2=4 ..2+2=tree
Step-by-step explanation:
Answer:
I believe it's 5
Step-by-step explanation:
sorry if I'm wrong lol
easy 5th grade math 20 points!!!!
Answer:
2 5/6
Step-by-step explanation:
3 1/2 - 2/3
Common denominator: 6
3 3/6 - 4/6
Regroup: 2 9/6 - 4/6
= 2 5/6
Answer:
2 5/6
Step-by-step explanation:
What is the answer for p^2-3p
Answer:
lklj g
Step-by-step explanation:
Which number is farther from 0: -3/4 or 5/8?
Answer:
The answer is 5/8
Step-by-step explanation:
Is it Equivalent 5/10 95/100
Answer:
No
Step-by-step explanation:
10 times 10 equal 100
5 times 10 only equal 50.
Not equal.
Hope this helps.
Which system of linear equations has the ordered pair (-2,8) as its solution?
y - 2x = 12 and x - 2y = -18
x – 2y = 12 and y - 2x = -18
y + 2x = 12 and x + 2y = -18
x + 2y = 12 and y + 2x = -18
Answer:
y - 2x = 12 and x - 2y = -18
[tex]for \: y - 2x \\ 8 - 2( - 2) \\ 8 + 4 \\ = 12 \\ for \: x - 2y \\ - 2 - 2(8) \\ = - 2 - 16 \\ = - 18[/tex]
Round 47138 to the nearest thousand
if we were to round to the nearest thousand you would get 4,7000
Answer:
47000
Step-by-step explanation:
Key skills needed: Rounding and Estimation
1) We have the number 47138
2) We need to round this to the nearest thousand. This means we look at the part that is "7138"
3) We need to see if 7138 is close to 7000 or 8000.
4) It is only 138 away from 7000, but 862 away from 8000.
5) This means 7138 rounded to the nearest thousand is 7000.
6) That means 47138 rounded to the nearest thousand is 47000.
Hope you understood and have a nice day!! :D
I’ll give 15 points.
1.5(4a+6)
Please answer
A gallon of gas costs $4.34. Greg puts 12 gallons of gas in his car. He has a 50-dollar bill. Tell how much money Greg will have left, or how much more money he will need. Show all your calculations.
Answer:
Greg needs $2.08 more
Step-by-step explanation:
A gallon of gas costs $4.34. Greg puts 12 gallons of gas in his car. He has a 50-dollar bill.
Hence: The cost of the 12 gallons of gas that Greg bought is given as:
12 gallons × $4.34
= $52.08
Greg has $50
These means Greg would need more Money.
The amount he needs is calculated as:
$52.08 - $50
= $2.08
Greg needs $2.08 more