Show that if there are 30 students in a class, then at least two have last names that begin with the same letter.
Hydrogen ions produced in human red blood cells are prevented from significantly lowering ph by combining with
The hydrogen ions that are produced in human red blood cells are prevented from significantly lowering blood pH by combining with hemoglobin.
What are red blood cells?Red blood cells is also referred to as erythrocytes and it can be defined as the blood component of a living organism which makes up approximately 41% of the total blood’s volume within the body. Also, it is saddled with responsibility of supplying oxygen to the body tissues of a living organism.
Generally, the hydrogen ions that are produced in human red blood cells are prevented from significantly lowering blood pH by combining with hemoglobin.
Read more on blood here: https://brainly.com/question/1622372
Solar cells convert this type of energy directly into electrical energy.
Answer:
Sunlight :)
Explanation:
A PV cell, (solar cell) directly converts sunlight into electricity.
Which of these is most likely the responsibility of local government?
The statement that describe the responsibility of local government is maintaining public works.
What is local government?Local government refers to the lowest segment of public administration that is within a particular state. This level of government refers to a level of administration within a geographically-localised areas and it has little authority.
It is responsible for responsible for different services for people and businesses.
Therefore, The statement that describe the responsibility of local government is maintaining public works.
The question is incomplete as the options are not given, here are the options from brainly website.
Correcting errors made in supreme Court cases.Developing and amending federal law.Approving state budget.maintaining public works.Learn more about local government below.
https://brainly.com/question/25192887
Answer: i
Explanation:
drk
List four topics that you could expect to be discussed during premarital counseling. which do you think is most important? why?
Calculate the energy stored in a spring when it is compressed 5mm by a 60n force
If a 60-N force is compressing the spring a distance of 5 mm = 0.005 m, then by Hooke's law, the spring has constant k such that
60 N = k (0.005 m) ⇒ k = 12,000 N/m
Then the spring is storing
1/2 (12,000 N/m) (0.005 m)² = 0.15 J
of potential energy.
A light year is defined as the distance light travels in one year. one light year is 9.46 × 1012 kilometers. a galaxy is about 150,000 light years wide. about how many kilometers wide is the galaxy?
Answer:
1.419E15
Explanation:
In a particular redox reaction, mno2 is oxidized to mno−4 and cu2+ is reduced to cu+ . complete and balance the equation for this reaction in acidic solution. phases are optional.
The balanced reaction equation is;
3Cu^2+(aq) + MnO2(s) + 2H2O -------> 3Cu^+(aq) + MnO4^-(aq) + 4H^+(aq)
What is a redox reaction?The term redox reaction refers to a reaction in which one specie is oxidized and another specie is reduced.
In this case, the reduction half equation is;
3Cu^2+(aq) + 3e ----->3Cu^+(aq)
Oxidation half equation;
MnO2(s) + 2H2O -------> MnO4^-(aq) + 4H^+(aq)
The balanced reaction equation is;
3Cu^2+(aq) + MnO2(s) + 2H2O -------> 3Cu^+(aq) + MnO4^-(aq) + 4H^+(aq)
Learn more about redox reaction: https://brainly.com/question/13293425
#SPJ1
A force that causes an object to slow down when it touches another object is
Answer:
Frictional force/ friction
The average height of a sunflowers in a field is 64 inches
Classify the variable as nominal-level, ordinal-level, interval-level, or ratio level of measurement. leap years: 2008, 2012, 2016,
Answer: Interval level
Explanation:
How did this structure combine both greek and roman architectural elements?
Answer:
The Hagia Sophia combines both Greek and Roman architectural elements. Some examples of this are the famous dome on this beautiful building was like that of the Ottoman Turks of the Roman Empire. It seems to have three or four large pillars which are made of marble which is like in Athens, Greece.
do taxonomic have no nucleus
Prokaryotes are cells that do not contain a nucleus
Answer: Not all cells have a nucleus.
Explanation: Only eukaryotic cells possess a nucleus. Prokaryotic cells, by contrast, possess a nucleotide region
If the anode compartment contains [so42−]= 1.30 m in equilibrium with pbso4(s), what is the ksp of pbso4?
The Solubility product constant (Ksp) for for the dissociation of PbSO₄ given by [Pb²⁺][SO₄²⁻].
What is solubility constant?Solubility product constant (Ksp) refers to the equilibrium constant that describes a solid substance (solute) being dissolved in an aqueous solution.
The properly balanced chemical equation for the dissociation of PbSO₄ is given by:
PbSO₄(s) ⇆ Pb²⁺(aq) + SO₄²⁻(aq)
Thus, the Ksp for the above chemical reaction is given by:
Ksp = [Pb²⁺][SO₄²⁻]
Read more on solubility product here: https://brainly.com/question/15396081
#SPJ1
Each person in a group of students was identified by year and asked when he or she preferred taking classes
Answer:
by the year he or she wanted
Cooper and his children went into a bakery and where they sell cupcakes for $2.50 each and donuts for $1.50 each. cooper has $40 to spend and must buy a minimum of 18 cupcakes and donuts altogether. if cooper decided to buy 7 cupcakes, determine the maximum number of donuts that he could buy. if there are no possible solutions, submit an empty answer.
Answer: He can buy a maximum of 15 donuts
Explanation: If he bought 7 cupcakes costin $2.50 each then you would multiply 2.50 by 7 which would give you $17.50
then you subtract 17.50 from 40 which gives $22.50 left to use for donuts
then you know you need to have a minimum 18 cupcakes and donuts together so we multiply 1.50 x 11 for the remaining 11 donuts you need and that leaves you with six dollars then if you multiply 1.50 x 4 it gives you the remaining 6 dollars you need so the max number of donuts you may buy is 15
Hope this Helps!
A carpenter asks, "what is the price per foot for pine boards at the lumber yard today?" select from the drop-down menus to correctly complete the statement about the question. the question is choose... because the data choose... .
Answer:
Not statistical do not vary
Explanation:
Hope this helps! :D
Answer: I have answers for that question and the whole quiz. These are them.
Hope it helped :D
Some questions might not be the same.
Lesson 2 skills practice geometric proof answer key
Answer:
huh
Explanation:
Writing in chronological order means that your writing __________.
Writing in chronological order means that your writing follows a sequence. :)
A label on snack crackers shows a total of 6,000 milligrams (mg) of fat, including 1.5 grams (g) of saturated fat. what percent of the total fat is saturated fat?
The length of the apothem of the hexagon is about inches. The perimeter of the hexagon is inches. The area of the hexagon is about square inches
Answer:
The length of the apothem of the hexagon is about
13.9 inches.
The perimeter of the hexagon is
96.0 inches.
The area of the hexagon is about
667.2 square inches.
Explanation:
Answer:
1) 13.0
2) 96.0
3) 667.2
Explanation:
What is the writer's primary purpose for writing this article
Answer:(B) to persuade the audience to share the writer’s point of view
Explanation:
Trust the process
18. refers a story or an account of something, dealing with sequences of events an experiences, though not necessarily in strict order.
A. Plot C. characters B. Narrative D. point of view
19. Which does not belong to the group?
A, novel C. short stories B. parables D. editorial text
20. It is a narrative that consist of people, events, or imaginary places that are not based on the facts of his
A. fictional narrative C. setting B. non-fictional Narrative D. theme
21. The element of the narrative that states when and where the story happens.
A. characters C. theme B. dialogue D. setting
22. Hero and villains are the in the narrative. A. characters C. plot B. theme D. title
23. is the sequence of events that occur or makes up a story?
A. theme C. plot B. exposition D. climax
24. What is a theme? A. It is the central message of the story. B. It is the protagonist and antagonist in the story. C. It is the thread of events. D. It is the where and when the story happens.
25. The following elements may lead us to find the theme of the narrative except one, which is it? A. Title B. dialogue C. Characters D. climax only 2
18.) narrative
19.) editorial text
20.) fiction
21.) setting
22.) characters
23.) it is the central message of the story
25.) dialogue
The manufacturer of a smart watch claims that individuals who pay attention to how many steps they take per day will inadvertently take more steps per day than individuals who pay no attention to how many steps they take per day. to investigate this claim, the manufacturer conducts a study to estimate the difference in the mean number of steps taken by those that pay attention to how many steps they take per day and those that do not. to do so, 40 volunteers are recruited. half of the volunteers are randomly assigned to receive a smart watch and are taught how to use it to track their steps. the other half of the volunteers are given a wristband to wear, but are not informed that the wristband is tracking their steps. the volunteers are monitored for 30 days. the mean and standard deviation of the number of steps taken per day are computed for each group. here are the data:
The confidence interval for the difference in the mean number of steps is; 1596 ± 2.861√[(1580²/20) + (2350²/20)]
What is the confidence Interval?The given data is;
n x⁻ Sₓ
Pay attention 20 10,244 1,580
Do not pay attention 20 8.,648 2,350
We are given;
Significance level; α = 0.1
Using Excel with the function, we have: TINV(0.01,19);
Critical value is; t = 2.861
The margin of error can now be represented by the illustration:
Margin of error = t√[(s₁²/n₁) + (s₂²/n₂)]
Thus, the confidence interval for the difference in the mean number of steps taken by all people like these that do and do not pay attention to the number of steps they take per day using df - 19 is:
1596 ± 2.861√[(1580²/20) + (2350²/20)]
Read more about Confidence Interval at; https://brainly.com/question/17097944
A lakota folk tale that encourages youth to emulate an important elder
The passage is most likely excerpted from A lakota folk tale that encourages youth to emulate an important elder.
What are folk tales?Folk tales are stories that are orally passed down traditionally from one generation to another. It includes fairy tales, fables, and trickster tales.
The importance of folk tales include to help children:
develop strong reading skills, study other culture,model positive character traits, and discover a love of stories.The Lakota folk tale according to the passage which encourages the youth to emulate an important elder is inculcating a positive character traits in the youths.
Therefore, the passage is most likely excerpted from A lakota folk tale that encourages youth to emulate an important elder.
Learn more about folk tales here:
https://brainly.com/question/6474529
A package of 88 batteries costs $ 4 . 724.72 . what is the cost per battery? $
Answer:
the batteries cost 59 cent a piece
Is this statement true or false? with the exception of israel, agriculture in the region remains undeveloped. true false
Answer:
True
Explanation:
Answer:
true
Explanation:
took the test on k12
Bmx company has one employee. fica social security taxes are 6.2% of the first $137,700 paid to its employee, and fica medicare taxes are 1.45% of gross pay. for bmx, its futa taxes are 0.6% and suta taxes are 5.4% of the first $7,000 paid to its employee.
The BMX tax for situation A, B and C are respectively calculated as; $282.3, $327.6 and $1600.4.
How to Calculate Social Security taxes?We are given;
When the FICA Social Security = 6.2% of the first $128,400
Then FICA Medicare = 1.45% of gross pay.
Also, FUTA = 0.6%
Then SUTA = 5.4% of the first $7,000 paid
Now, Gross Pay through August 31 -----Gross Pay for September
A ⇒ $5,100 ⇒ $2,200
B ⇒ 2,300 ⇒ $2,400
C ⇒ 122,700 ⇒ 8,600
In case of A;
FICA is calculated by multiplying the tax rate by the corresponding amount;
FICA social security tax = $2,200 * 0.062 = $136.4
FICA Medicare = $2,200 * 0.0145 = $31.90
FUTA and also SUTA are calculated by multiplying the excess amount by the respective tax rate.
FUTA taxes = ($7,000 - $5,100) * 0.006 = $11.40
SUTA taxes = ($7,000 - $5,100) * 0.054 = $102.60
BMX tax in situation A = $136.4 + $31.90 + $11.40 + $102.60
BMX Tax = $282.3
In case B;
The gross pay is multiplied by the respective tax rate in this situation because the employee has not reached $7,000 in wages.
FICA social security tax = $2,400 * 0.062 = $148.8
FICA Medicare = $2,400 * .0145 = $34.80
FUTA taxes = $2,400 * 0.006 = $14.40
SUTA taxes = $2,400 * 0.054 = $129.6
BMX tax in situation B = $148.8 + $34.80 + $14.40 + $129.6
BMX Tax = $327.6
In case of C;
The maximum amount of wages subject to social security tax is $128,400. Thus;
FICA social security tax = ($128,400 - $122,700) * 0.062 = $353.40
FICA Medicare: $8,600 * 0.0145 = $1247.00
Total taxes for BMX = $353.40 + $1247.00 = $1600.4
Read more baout Calculating Social security at; https://brainly.com/question/3521473
The quotient of and a number n results in. What is the value of n?
The quotient of a number 8.4x10⁹ and a number n results in 5.6 x 10^27, with the value of n is 1.5×10⁻¹⁸.
What is the quotient of a number?Quotient is the resultant number which is obtained by dividing a number with another. Let a number a is divided by number b. Then the quotient of these two number will be,
[tex]q=\dfrac{a}{b}[/tex]
Here, (a, b) are the real numbers.
The two number given in the problem are, 8.4x10⁹ and n. The quotient when first number is divided with second is 5.6 x 10^27. Thus,
[tex]\dfrac{8.6\times10^9}{n}=5.6\times10^{27}[/tex]
Rearrange the equation for n as,
[tex]n=\dfrac{8.6\times10^9}{5.6\times10^{27}}\\n=\dfrac{8.6\times10^{9-27}}{5.6}\\n=1.5\times10^{-18}[/tex]
Thus, the quotient of a number 8.4x10⁹ and a number n results in 5.6 x 10^27, with the value of n is 1.5×10⁻¹⁸.
Learn more about the quotient here;
https://brainly.com/question/673545
#SPJ1
1. You just realized the turn signal on your vehicle is broken, and
you need to signal that you're turning left. What is the correct
way to do it?
A. Hold your left arm out of the window at a 90-degree angle, with your hand
pointing upward to the sky.
B. Hold your left arm out of the window at a 90-degree angle with the hand
pointed down.
C. Hold your left arm horizontally out the window.
D. Hold your left arm out the window pointing vertically straight up to the sky.
Answer:
C. Hold your left arm horizontally out the window.
Explanation: