Ms. Johnson's sixth grade class handed out surveys,
one to each student, about hair color and later posted the results:
75% of students had brown hair
20% of students had red hair
10% of students had blonde hair
What is the error in this sampling?
OA. Not that many students had brown hair.
O B. No one kept track of the number of surveys that went out.
O C.
The results add up to more than 100%
O D. Only two students were involved in tabulating the results.
Answers
Answer:
b
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
this should be obvious as 75 + 30 = 105
Related Questions
Use the sum of cubes identity to write this polynomial expression in factored form:
8x3 + 27.
Answers
Answer:
8*3+27=2³*3+3³
Step-by-step explanation:
2³=8
3³=27
8*3+27=2³*3+3³
Roderick works as an architectural draftsman for an engineering firm. His monthly salary is $3,204.17. After taxes and other deductions, he takes home $2,317.56. His wife works as an electronics technician and earns $25.07 per hour. She works 37.5 hours each week and is paid every other week.
Based on this information, what is their gross income for six months?
Answers
Taxes are not deducted for gross income.
Roderick's gross income for 6 months = $3,204.17 × 6 = $19,225.02
Wife's gross income for 6 months = $25.07 × 37.5 × 26 = $25,057.5
Total gross income = $44,282.52
Pls help giving 20 points
Answers
Answer:
220.5 ft
Step-by-step explanation:
The number of bats in a colony is growing exponentially. After 1 year, there were 70 bats. After 4 years, there were 560 bats. If the colony continues to grow at the same rate, how many bats are expected to be in the colony after 7 years?
Answers
Answer:
23040 bats
Step-by-step explanation:
Let N(t) be the number of bats at time
We know that exponential function
[tex]y = ab[/tex]
According to question
[tex]N(t) = ab^{2}[/tex]
Where t (in years)
Substitute t=2 and N(2)=180
[tex]180 = ab^{2}[/tex]
Substitute t=5 and N(5)=1440
[tex]1440 = ab^{5}[/tex]
Equation (1) divided by equation (2)
[tex]\frac{180}{1440} = \frac{ab^{2} }{ab^{5}} = \frac{1}{b\frac{5-2}{}}[/tex]
By using the property
Substitute the values of b in equation (1)
Substitute t=9
Hence, after 9 years the expected bats in the colony=23040 bats
A function with an input of 1 has an output of 3. Which of the following could not be the function equation?
y = 3 x
y = - x + 4
y = x - 2
y = 2 x + 1
Answers
Answer:
y = x - 2
Step-by-step explanation:
The easiet method is to plug in both the x and y value. If the statement is true, that means that answer choice is wrong. Doing this, you find that answer Choice 3 is not correct. That is your answer.
Write the number in expanded NOTATION 14.95
Answers
i think
write in logarithmic form 4^-3 = 1/64
Answers
Answer:
-3=log base 4 1/64
Step-by-step explanation:
This was hard to write because you cant do base on keyboard.
Una persona camina desde su casa hasta el parque la distancia de 100 M y el tiempo recorrido fue de 10 minutos cuál fue su velocidad
Answers
Usando la relación entre la velocidad, la distancia y el tiempo, se encuentra que su velocidad fue de 10 m/min.
¿Cuál es la relación entre la velocidad, la distancia y el tiempo?Velocidad es distancia dividida por el tiempo, o sea:
[tex]v = \frac{d}{t}[/tex]
En este problema, hay que:
La distancia es de d = 100 m.El tiempo es de t = 10 min.Por eso:
v = 100 m/10 min = 10 m/min.
Su velocidad fue de 10 m/min.
Puede-se aprender más a cerca de la relación entre la velocidad, la distancia y el tiempo en https://brainly.com/question/24558377
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Please Help!!!!
Find the slope of the line.
Answers
Answer:
-1/2
Step-by-step explanation:
Use the two points shown.
slope = rise/run
Start at teh left point.
Go down 2 units. That is a rise of -2.
Now go right 4 units. That is a run of 4.
slope = rise/run = -2/4 = -1/2
On a long hike, Austin drank 5 pints of water. How much did he drink in quarts?
Answers
Answer:
Austin drank 2.5 quarts.
Step-by-step explanation:
There are 2 pints in a quart.
To get from pints to quarts, divide by 2
5/2 = 10
2.5 quarts
mark brainliest please!
Question 1 of 8
Which of the following are good questions to ask when trying to understand a
problem? Check all that apply.
A. Does my guess satisfy the equation?
B. Is the variable always positive, negative, or either?
C. How should I present the solution?
D. What is the variable?
E. What is a logical name for the variable?
F. What are the units of the variable?
Answers
Answer:
A, C,D,E,F
Step-by-step explanation:
Resuelve el siguiente problema aplicando las estrategias de solución de problemas:
• La suma de dos números es 20 y su diferencia es de 4. Halla los números.
Answers
Numero mayor = x
Numero menor = 20 - x
x -( 20 - x) = 4
x - 20 + x = 4
2x = 4 +20
x = 24/2
x = 12
El numero mayor es 12
El numero menor es = 20 - 12 = 8
El producto es = 12*8 = 96
What is 14 quarter inches
Answers
Answer:
1.1875 feet is equal to 14.25 (14 quarter) inches.
Hope It Helps.
please help me!!
a bag contains 18 marbles. there are 6 red marbles, 6 yellow marbles, and 6 green marbles. a marble is drawn at random and returned. then another marble is drawn at random
which statements are true?
A. the expected probability of drawing a green marble first is the same as the expected probability of drawing a green marble second.
B. there are six possible outcomes
C. the probability of drawing a red marble first is the same as not drawing a red marble second
D. the expected probability of drawing a red marble and then a yellow marble is 1/9
E. there are three possible outcomes from drawing the same color twice
F. the probability of drawing a yellow marble and then a yellow marble is 1/6
Answers
Answer:
Step-by-step explanation:
A. False. The probability of drawing a green marble twice is even smaller (It may be true though depending on what the question is asking, if it is asking the chance of drawing a green marble second is the same as the 1st chance, then yes it is True.
B.False
C. False
D.True, 1/3*1/3 (Simplified version of 6/18*6/18) is 1/9
E. False (Although this may be true, again depending on the type of question)
F. False
In a round of mini-golf, Clare records the number of strokes it takes to hit the ball into the hole of each green.
2 3 1 4 5 2 3 4 3
She said that, if she redistributed the strokes on different greens, she could tell that her average number of strokes per hole is 3. Explain how Clare is correct.
Answers
Answer:
She is correct because 3 appears the most amount of times.
can u guys please help me
Answers
Answer:
60.69cm^2
Step-by-step explanation:
5.1^2 = 26.01
5.1/2 = 2.55
2.55 × 5.95 = 15.1725
15.1725×4 = 60.69
60.69 + 26.01 = 60.69cm^2 nice
Which of the following is equivalent to
?
60 ^1/2
Answers
Answer:
60^1/2 = 60^0.5 = sqrt 60 = 7.75
good luck :))) <3
What is the answer to this?…
Answers
[tex]~~~~~\dfrac 34n = 9\\\\\\\implies n = \dfrac{9 \times 4} 3\\\\\\\implies n = \dfrac{36}3\\\\\\\implies n = 12[/tex]
At a fudge shop, they cut a sheet of fudge into one-ounce pieces.
What would happen if they cut the sheet of fudge into one-pound pieces?
A.There would be more pieces.
B. There would be fewer pieces.
C. There would be no pieces.
D. There would be the same number of pieces.
Answers
Answer:
a
Step-by-step explanation:
What financial risk does training employees on a computerized accounting system represent?
Without suitable security access protocols in place, well-trained employees could figure out ways to use the accounting system to _________
from the company
Reset
Next
Answers
Without security access protocols in place, well-trained employees could find ways to use the accounting system to divert or steal companies funds (money).
What are security access protocols?A security protocol is known to be a kind of communication protocol that is said to be a well planned sequence of actions to be done by two or more firms so as to achieve their desired goal.
Conclusively, Note that when there is no good or suitable security access protocols that has been put in place by an organization or firm, well-trained employees could figure out ways to use the accounting system to divert or steal companies funds (money) from the company to their own personal account.
Learn more about security access protocols from
https://brainly.com/question/1863524
Can someone help me find the volume of this?
Answers
Answer:
97.2 m³
Step-by-step explanation:
The volume of a triangular prism is half the volume of a rectangular prism with the same length, width, and height.
V = 1/2LWH
V = 1/2(9 m)(7.2 m)(3 m) = 97.2 m³
_____
Additional comment
The relation we used above comes from the more general formula for the volume of a prism:
V = Bh
where B is the area of the base.
You know a rectangular base will have an area of ...
A = bh
and a triangle with the same base and height will have an area of ...
A = 1/2bh
That is, the base area of a triangle is half that of a rectangle with the same dimensions. When we use this fact in the volume formula, we find the volume of a triangular prism is 1/2 that of a rectangular prism with the same length, width, and height.
Solve the equation. Write your answer as an integer or simplified fraction.
5n−6 n−2 =19
n = _____
Answers
Explaination :
The given equation,
[tex] \boxed{\sf{5n \: - 6(n - 2) \: = \: 19}} \: \bigstar[/tex]Lets start solving it..!!
★ Multiplying -6 by (n -2),
[tex] \implies \: \sf{5n \: - 6 \times (n - 2) \: = \: 19} [/tex]
[tex] \implies \: \sf{5n \: - 6n + 12 \: = \: 19} [/tex]
★ Subtracting 5n from 6n,
[tex]\implies \: \sf{ - n + 12 \: = \: 19} [/tex]
★ Transposing 12 from L.H.S. to R.H.S. it would be in negative,
[tex]\implies \: \sf{ - n \: = \: 19 - 12} [/tex]
★ On subtracting 12 from 19 we gets,
[tex] \implies \: \sf{ - n \: = \: 7} [/tex]
★ Now,
[tex] \implies \: \red{\bf{ n \: = \: - 7} }[/tex]
Therefore,
Value of n is -7What is the factorization of the polynomial graphed below? Assume it has no
constant factor. Write each factor as a polynomial in descending order.
Answers
(x - 5)(x - 3)(x - 2)
[tex]\bold{EXPLANATIONS:}[/tex]
2. Choose the correct measurement of the paper clip to the nearest 1/8 inch.
Answers
Answer: 1 3/8 inches.
Answer: 1 3/8
The paper clip is 1.375 inches.
Three hundred eighty-five defective alcohol swabs were produced in a day. If 4% of the alcohol swabs produced were defective, how many alcohol swabs
were produced in all?
Answers
Answer:
9625
Step-by-step explanation:
If 385 alcohol swabs were defective, then 385 is 4% of all produced alcohol swabs.
385*25 = 9625
9625 alcohol swabs were produced
The number of alcohol swabs produced in all was 9625.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is equivalent to the quantity of that value between 1 and 100, and it is highly helpful for forecasting. For instance, if you say 678, we must also know the whole number, but if you say 80%, it is obvious.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
Let's say the total of x number of alcohol produced
4 percent were defective so
0.04 × x = 384
x = 9625 hence a total of 9625 alcohol was produced.
For more about the percentage
brainly.com/question/13450942
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Find a single expression that represents the area of the outer ring of the circle if the area of the whole circle is represented by the expression "25x2 − 12x − 9."
A) 18x2 − 12x − 6
B) 18x2 − 12x − 12
C) 32x2 − 12x − 6
D) 32x2 − 12x − 12
Answers
Answer:
18x2-12x-6
Step-by-step explanation:
I got it wrong and this was the answer. Take it or leave it
13. Miguel has two different cylindrical containers. The capacities of the two containers are
shown below.
30 pinto
4 gallons
Container X
Containery
not to soolo
Which statement correctly compares the capacities of the two containers?
A. Container X is 1 quart greater than Container Y.
B. Container X is 1 quart less than Container Y.
C. Container X is 26 quarts greater than Container Y.
D. Container X is 26 quarts less than Container Y.
M
Answers
The statement that correctly compares the capacities of the two containers is container X is 1 quart greater than Container Y.
How do we determine the correct statement?In order to correctly compare the capacities of the two containers, the capacities have to be converted to quarts.
1 pint = 0.5 quart
Capacity of container Y = 30 / 0.5 = 15 quarts
1 gallon = 4 quarts
Capacity of container X =4 x 4 = 16 quarts
Difference in capacity = 16 - 15 = 1
To learn how to convert units, please check: https://brainly.com/question/25993533
8x = 2/3 ; x =
1 1/2 = 2x; x =
5x = 2/7; x =
1/4x = 5; x =
1/5 = 2/3x; x =
Answers
We can simply solve the equations by just dividing by the coefficient value of x. For example, we would divide both sides of the first equation by 8 to make the equation into x = 2/24 = 1/12
8x=2/3 --> x=1/12
1.5=2x --> x=0.75
5x=2/7 --> x= 2/35
1/4x=5 --> x=20
1/5=2/3x --> 3/5=2x --> x=3/10
When multiplying 286 x 23 what is the first step?
Answers
Answer: the answer to your question is 6,578
Step-by-step explanation:
Answer:
first step multiple 286×23=578
10.0% complete
Question
You are writing a book about a 3,030-mile bike race across the United States. You wonder about a title, and how many pedal strokes it takes to finish the race. Assuming a pedal stroke is about 16 feet on average, which of the following would be the best book title?
Answers
Answer:
Step-by-step explanation:
"One Billion Pedals to Finish " seems like a good title to me, but, if you want a math correct title, then,
3,030mi* 5280 ft. per mile = 15,998,400 ft.
now divide pedals into ft.
15,998,400 / 16 =999,990 :D do you think they did that on purpose? made the answer 99999 :D I think so, soooo name the title "One million pedals to finish" or to be math accuate, but less "pop" , then "999,990 petals to finish"
I like "One million pedals" which do you like? :/ The very first answer? but totally wrong? :D, yeah, go with the " One Billion Pedals" sure, it's inaccuarate :DDD but very amazing :P