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
What is 5x-7=-10x+8
subtract 5 from both sides -
5x - 7 = -10x + 8
-5 -5
-7 = -15x + 8
subtract 8 from both sides -
-7 = -15x + 8
-8 -8
-15 = -15x
now divide both sides by -15 -
-15/-15 = -15x/-15
The answer: x = 1
(x alone also equals 1)
hope this helps! :)
John is 5 feet 10 inches tall. There are 2.54 centimeters in 1 inch.
What is John’s height in centimeters?
25.4 cm
⊝
17.78 cm
⊝
177.8 cm
⊝
152.40 cm
Answer:
It would be 177.8 cm!!
Step-by-step explanation:
Answer:
177.8 CM
Step-by-step explanation:
70 x 2.54
= 177.8
How much time is between 9:25am then return home at 7 :10pm
Answer: the answer is 9 hours 45 minutes
please help me it's an 8 grade question
Please help, me I just need to know how to set it up the 2 equation on both.
Plz help! A B C or D
Answer:
d thats the answer i think
You are considering hiring a DJ for a birthday party. The price of the DJ is $35 per hour. All customers must
pay a $75 set up fee. The fixed cost is added to the total bill.
Write an equation to determine the total bill, t, for a customer. Use h to represent the number of hours the DJ works.
t = 75h + 35
t = 35 + 75
t = 35h + 75
h = 35t + 75
Answer:
The answer is C
Step-by-step explanation:
t = bill for the customer
h= number of hours Dj worked
1) t = 75h + 35
This is wrong because h represents the number of hours the Dj worked. 75 is how much the customers paid as a setup fee.
2) t = 35 + 75
This is wrong because it's asking you to use "h" and "t" to determine the total. This is just a regular equation.
3) t = 35h + 75
This is right because as it says in the problem "The price of the Dj is $35 per hour" It also says use "h" to represent the number of hours the DJ works.
The "t" is used for the customer bill and 75 represents the setup fee
4) h = 35t + 75
This is wrong because h respresents how many hours the DJ works.
"t" represents the bill for the customer. The "t" would be in the beginning of the equation and the "h" would be behind the amount the DJ got paid per hour.
32 cubic cenimters it takes 8 cenimeters cube
Answer:
4
Step-by-step explanation:
32 divided by 8
PLEASE HELPPPPP MEEE
Answer:
-1 3/ 4
Step-by-step explanation:
PLEASE HELP ME!!!!!!
its just -1/2 tho or -0.5
solve 4x^3 + 10 when x = -3
Answer:
[tex]4 \times {( - 3)}^{3} + 10 = 4 \times ( - 27) + 10 = - 108 + 10 = - 98[/tex]
PLZZ HELP WILL GIVE BRAINLIEST TO THE ONE THATS FIRST AND HAS THE CORRECT ANSWER
Answer:
The answer is A, 17/30.
Step-by-step explanation:
1/10+1/3= 13/30
(1) - 13/30 = 17/30.
- If you think that my answer was helpful, give me the brainliest answer!
Please help me with this homework
Answer:
[tex]slop = \frac{y2 - y1}{x2 - x1} = \frac{ - 4 - 1}{ - 4 - 0} = \frac{ - 5}{ - 4} = 1.25[/tex]
Caroline wears a suit to work everyday. Caroline has 6 suits, 3 overcoats, and 4 pairs of shoes. How many different outfits can Caroline create? *
A store sells 5-pound bags of potatoes for $2.35 or 8-pound bags of potatoes for $3.52. Based on this information, which statement is true?
I don't know what the answer choices are
5 pound = $2.35
8 pound = $3.52
2.35/5 = 0.47
3.52/8 = 0.44
The 8 pound bag costs less dollars per pound than the 5 pound bag
Name:
Short Answer
19. Use the triangle below.
20
x
31
What is the value of the angle (x)? (Round to the nearest whole number)
X =
50 Points For All these Answers
Step-by-step explanation:
please mark me as brainlest
Answer:
Step-by-step explanation:
The value of q is the ____ intercept of y= ax^2 +q The q value moves the graph ____ units ____or______ and has ______ on the ________of the parabola. The value of q causes a ____ shift of the parabola. The value of q causes a _____ shift of the graph.
Answer:
See belowStep-by-step explanation:
Since no drop-downs are given, I'll guess and add the most suitable words for you.
The value of q is the y- intercept of y= ax^2 +q.
The q value moves the graph q units up or down and has (no option, could be shift) on the graph of the parabola.
The value of q causes a vertical shift of the parabola. The value of q causes a vertical shift of the graph.
Problem D: PRAMHW Jade's softball team went to the batting cages for practice. Jade hit 28 out of 30 pitches. If she goes back after practice for 100 more pitches, how many would you expect her to hit? Round your answer to the nearest hit
Answer:
93
Step-by-step explanation:
Direct proportion.
If 28 out of 30, how many out of 100?
(30*100)/28= 93.3333
Help with middle one pls
Answer:
15 times 3 is equal to45
hola alguien para hablar estoy aburrida y me gustaría hablar con alguien
Answer:
i know english only
Step-by-step explanation:
sorry but you stupit you not good at englis
A market research firm is studying the effects of price and type of packaging on sales of a particular product. Twenty-seven stores with shoppers of similar characteristics will be used in the study. The nine combinations of three price levels and three packaging types are the treatments of interest. Total sales of the product over a seven-week period will be recorded. Which of the following describes the best design to use for the study?
a. А A completely randomized design Randomly assign the nine combinations of price level and packaging type that three stores use each combination
b. A completely randomized design. Randomly assign the three price levels so that nine stores use each price level
c. A completely randomized design. Randomly assign the three packaging types so that nine stores use each type of packaging
d. A randomized block design Use packaging as a block. Randomly assign the nine combinations of three price levels and three packaging types so that three stores use each combination
e. A randomized block design. Use packaging as a block Randomly assign nine stores to each packaging type, then randomly assign price level to three stores within each block.
The market research can increase the precision of the result of the study by
using a randomized block design RBD
The best design the market research company should use for the study is
d. A randomized block design Use packaging as a block. Randomly assign
the nine combinations of three price levels and three packaging types so
that three stores use each combination
Reason:
The given parameters are;
The study = The effect of price and type of packaging
Number of stores in the study = 27 stores
Characteristics of the shoppers in the stores = Similar
Number of packaging type = 3 (three)
Number of price levels = 3 (three)
The number of pair combinations = ⁶₂C - (3, pairs of the same packaging +
3, pairs of the same prices) = 9
Required:
The best design to use for the study
Solution:
Given that the shoppers at each store are similar, in order to differentiate
and show the effect of the price and package combination, it is possible to
group the treatment into groups having a particular characteristics, while
ensuring that the other available treatments are assigned to each member
within a group at least once.
The above design of the study is known as a randomized block design,
therefore;
The correct option is d. A randomized block design Use packaging as a
block. Randomly assign the nine combinations of three price levels and
three packaging types so that three stores use each combinations.
Learn more here:
https://brainly.com/question/15712468
Which number equals 3/4 to the power of negative 2?
find the distance between each pair of point. Round to the nearest hundredth(-8, -2) and (6, -1)
Answer:
the square root of 197
Step-by-step explanation:
delta x=14
delta y=1
therefore with the Pythagorean theorem, the hypotenuse/distance is the square root of 197
when multiplying 32 and 12 how many partial products will there be
Answer:
12
Step-by-step explanation:
32*12
twelve is the amount of products there will be
Multiplication is the process of multiplying. When multiplying 32 and 12, the number of partial products will there be 4.
What is multiplication?Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.
The partial product technique is multiplying each digit of a number in turn with each digit of another, with each digit remaining in its original position.
The multiplication of the two given term 32 and 12 can be done as,
32 × 12
= (30 + 2) × (10 + 2)
= (30×10) + (30×2) + (2×10) + (2×2) {This are the partial products}
Hence, when multiplying 32 and 12, the number of partial products will there be 4.
Learn more about Multiplication here:
https://brainly.com/question/14059007
#SPJ2
evaluate -6-(-5) x (-9)
tell whether the following sequence is geometric or not. If geometric find r
—
hi can someone please answer my question i really need the complete step-by-step solution. thank you ❤️
Answer:
yesr = 1/2Step-by-step explanation:
We can observe each term is twice as less than the previous term.
This is the indication the sequence is geometric and the common ratio is:
r = 1/2how do you solve this and what is the answer?
y-3=5/2(x-3)
$26 is what percent of $40?
$26 is ___% of $40.
Answer:
65%
Step-by-step explanation:
$2 = 5%
So $26 = 65%
Answer:
$26 is 65% of $40.
Step-by-step explanation:
26: 40*100 =
(26*100): 40 =
2600: 40 = 65
What are the three trigonometric reciprocals of sine, cosine, and tangent?
Answer:
Secant, cosecant and cotangent.
Step-by-step explanation:
Step-by-step explanation:
There are three reciprocal trigonometric functions, making a total of six including cosine, sine, and tangent. The reciprocal cosine function is secant: sec(theta)=1/cos(theta). The reciprocal sine function is cosecant, csc(theta)=1/sin(theta). The reciprocal tangent function is cotangent, expressed two ways: cot(theta)=1/tan(theta) or cot(theta)=cos(theta)/sin(theta).