Answer:
El pH del refresco es 3.42.
Step-by-step explanation:
Se puede calcular el pH del refresco usando la siguiente fórmula:
[tex]pH = -log([H^{+}])[/tex]
En donde:
[H⁺]: es la cocentración de los iones H⁺ de la solución
Entonces, el pH es:
[tex]pH = -log([H^{+}]) = -log(3.8\cdot 10^{-4}) = 3.42[/tex]
El resutlado obtenido nos permite concluir que ese refresco es ácido.
Por lo tanto, el pH del refresco es 3.42.
Espero que te sea de utilidad!
Usando su fórmula, se encuentra que el valor de PH de ese refresco es dado por 3.42.
Cual es la fórmula para el valor de PH?Es dada por:
[tex]pH = -\log{H^{+}}[/tex]
Onde [tex]H^+[/tex] es la concentración.
En este problema, hay que la concentración es de [tex]H^+ = 3.8 \times 10^{-4}[/tex], por eso:
[tex]pH = -\log{H^{+}}[/tex]
[tex]pH = -\log{3.8 \times 10^{-4}}[/tex]
[tex]pH = 3.42[/tex]
El valor de PH de ese refresco es dado por 3.42.
Puede-se aprender mas sobre el valor de PH en https://brainly.com/question/16146414
How do I complete this chart?
Answer:
Step-by-step explanation:
You would first have to plug in for x, (which is already given). After plugging in for x, you would need to solve the equation to get y.
Once you have both x and y, you will have your (x,y)
For example: (given x value = -5)
[tex]f(x) = -|x - 5| -4\\f(-5) = -|(-5) - 5| - 4\\f(-5) = -|-10| - 4\\f(-5) = -10 - 4\\f(-5) = -14\\f(-5) = y = -14\\\\[/tex]
so:
x = -5
y = -14
( -5, -14)
factor completely;
3x^2 - 28x + 49
Answer:
(3x-7) (x-7)
Step-by-step explanation:
Answer:
(3x-7) (x-7)
PLEASE MARK BRAINLIEST
Step-by-step explanation:
32−28+49
32−7−21+49
-----
32−7−21+49
(3−7)−7(3−7)
---->(3x-7) (x-7)
Joel is mailing a large envelope to his cousin. The envelope has pictures inside, so he doesn't want to bend it. What is the maximum width for the mail slot???
Answer:
the maximum width of the mail slot is 25 cm.
u. can find it through phythagoras theorem
Answer:
25
Step-by-step explanation:
Use the pythagorean theorem. Here's how: Since a^2+b^2=c^2, 7^2+24^2=576+49= the square root of 625 which is 25.
1.19x10^-7 in standard notation
Answer:
it should be 1.19 x 10^-7
Step-by-step explanation:
Hope its correct.
Which of the following is a monomial?
A. 9/x
B. 11x^2
C. 20x - 14
D. 20x^9 – 7x
ITS B: 11x^9
Mono (1) nomial == 1 term.
11x^2 is 1 term in combination so B is your answer.
D. is not, its a binomial along with C. and A.
What is 52% of 25? i got 13 is that correct??
Answer:
Yes that is correct
Step-by-step explanation:
52 x 25 = 1,300
1300/ 100= 13
I NEED HELP ON THIS GEOMETRY QUESTION!!!
Answer:
c
Step-by-step explanation:
Write an equation for this graph
Answer:
y = 3x
Step-by-step explanation:
m = (6-3)/(2-1) = 3/1 = 3
Answer: y=3x
Step-by-step explanation:
To write an equation, the first step is to look at the rise/run. In this graph, the rise is 3 and the run is 1. 3 divided by 1 is still 3 so in the equation mx+b, the m, also known as the slope, would be 3.
3x+b
And the b is the y-intercept where the line crosses the y axis.
3x+0=y
Therefore;
3x=y
The equation 150s + 45h = 1,155 is used to determine the number of skateboards s and the number of helmets h that can be bought for $1,155. You purchase 5 skateboards. Select all the steps that may be used when solving for the number of helmets purchased.
A. Multiply both sides by 45.
B. Add 150s to both sides.
C. Subtract 150s from both sides.
D. Substitute 5 for s in the equation.
E. Divide both sides by 45.
Answer:
D & E
Step-by-step explanation:
150(5)+45h=1155 D
750+45h=1155
45h=405
h=9 E
What is the image of the point (-6, -8) after a rotation of 90° counterclockwise
about the origin?
Submit Answer
Answer:
(-6,8)
Step-by-step explanation:
36abc + 54ad = ? im struggling with math
Answer:
18a(2bc+3d)
Step-by-step explanation:
36abc + 54ad = ?
Rewrite as ;
=2*18abc+3*18ad
Factor out common term 18a
18a(2bc+3d)
I HOPE THIS HELPED!!!
The ages of a group of randomly selected adult females have a standard deviation of years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students
Answer:
Assume that we want 90% confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? The required sample size is . (Round up to the nearest whole number as needed.) Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? A. Yes, because statistics students are typically younger than people in the general population. O B. No, because there is no age difference between the population of statistics students and the general population. O C. No, because statistics students are typically older than people in the general population.
Step-by-step explanation:
♥☺
find the value of x
−20x−6=19
Answer:
the answer is x=−5/4
Step-by-step explanation:
hoped I helped:)
HELPPPPPPPPPPPP MEHHHHHHHHHHHHHHHHHHHHHHHHH PLZZZZZZZZZZZZZZZZ GRADES GO OUT TOMMORROW AND I NEED THIS SO I CAN GET MY GRADE UP FROM A D+ PLZZZZZZZZ MY PARENTS WILL MURDER ME
Answer:
Fair well i hope you lived a good life
Step-by-step explanation:
What is the answer to question b and d
Answer:
Step-by-step explanation:
a) -3
b) 5
c) -2
d) -6
Answer:
a) (-3)
b) 5
c) (-2)
d) (-6)
Hope it helps!!
&
21
A
2
Which relation is displayed in the graph?
O {(-2, 3), (1, 1), (0, 1), (3, 2), (-2, 4)}
O {(-3, 2), (-1, -1), (1, 0), (2, 3), (4, 2)}
O {(-3, -2), (1, -1), (0, 1), (2, 3), (4, -2)}
Answer:
The answer is C
Step-by-step explanation:
By looking at the graph, you can instantly tell that the first point is (-3,-2) which immediately eliminates the other choices
If the pointer in the figure is spun twice, find the probability that the pointer lands on yellow (Y) both spins.
Step-by-step explanation:
help please don’t know how to do this
Answer:
1. C,D
2. B,C,D
3. E
4.D
5.A,B,C,D
6.D
7.C,D
8.E
Step-by-step explanation:
Hope this helps ;)
A shirt is on sale for 30% off. The expression p - 0.30p, where p is the original cost of the shirt, can be used to find the sale price. Which expression means the same as decreased by 30%?
Answer: 0.70
Step-by-step explanation the same as decreased by 30%" would be (1.00 - 0.30)(original cost), or 0.70(original cost)
who else has so much going on in there life that they find this part of them?
Answer:
Me bro n i like how yo power is sumthing i would have mine as
pls answer this real answers if its right ill give brainliest
Answer: 7.5 batches
Step-by-step explanation:
60/6 is 10, so she needs to make 10 batches in total.
10-2.5=7.5
Answer:
no. of muffins = 60 muffins
no of muffins in each batch = 6 muffins
no. of batches which got over = 2.5 batches
no. of muffins baked = 6 * 2.5 = 15
no. of muffins to be baked = 60 - 15 = 45
no. of batches required to bake 45 muffins = 45 / 6 = 7.5
hope this answer helps you!
please mark as brainliest... thank you!
Rose is 5 years older than Milton. Rose's age is 10 years less than four times Milton's age. The system below models the relationship between Rose's age (r) and Milton's age (m):
r = m + 5
r = 4m – 10
Which is the correct method to find Rose's and Milton's ages?
A: {(-3,-1), (2,2),(0,1),(1,3),(-2,4)}
B: {(-3,-1),(-2,2),(1,0),(3,1),(4,-2)}
C: {(-3,-1),(2,-2),(1,0),(3,1),(4,-2)}
D: {(-1,3),(-2,-2),(0,1),(3,1),(4,2)}
Answer:
Add al of the numbers
Step-by-step explanation:
all you have to do is add all the numbers
Convert to millimeters: 21 centimeters A. 210 millimeters B. 21,000 millimeters C. 2,100 millimeters D. 2.1 millimeters
Answer:
A. 210
Step-by-step explanation:
question on the picture:
Which of the following it's true about f(x) and g(x)
Answer:
its c
Step-by-step explanation:
What is the solution to this system of linear equations?
Answer: To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect. The two lines intersect in (-3, -4) which is the solution to this system of equations.
Step-by-step explanation: hope this helps
The side length of a cube is 8 cm, and the side length of a smaller cube is 2 cm.
The volume of the larger cube is how many times the volume of the smaller cube?
Answer:
64 times larger
Step-by-step explanation:
8^3=512
2^3=8
512/8=64
Mr. Stewart said that he would pay $750 for a bedroom suite. The suite Mrs. Stewart wants costs $250 less than twice as much money as Mr. Stewart will spend. How much does the suite cost that Mrs. Stewart wants?
Answer:
$1,250
Step-by-step explanation:
Mr. Stewart will spend $750
Mrs. Steward wants $250 less than twice that
750 * 2 is 1500
1500 - 250 is 1250, our final answer
brainliest? please and thank you.
What is the value of x in the figure below
Answer:
just delete this
Step-by-step explanation: