Answer: (E) Not necessarily, because this wasn't an experiment
Step-by-step explanation:
As much as the results would suggest that the fast-paced music was responsible for the faster finishing time, this conclusion cannot be authoritatively made because this was not technically an experiment but rather a test to satisfy curiosity.
An experiment is planned and is scientific. It has more stringent requirements that ensure causation that Roshanda did not meet before she engaged in this trial so we cannot say for a fact that her findings are objective.
Answer: C. yes, the students were randomly assigned to treatment and control groups.
Step-by-step explanation:
Complete the statement to describe how to convert ounces to pounds?
Answer:
to find the weight in pounds, divide the number of ounces by the unit rate, 16 ounces per pound.
The difference of the square of a number and 10 is equal to 3 times that number. Find the negative solution.
Answer:
-2
Step-by-step explanation:
Let's call the number x. The statement tells us that
x^2 - 10 = 3x, or
x^2-3x-10 = 0
Factoring:
(x-5)(x+2) = 0. Here, we see that there are two solutions: x = 5 and x = -2. So, the negative solution is x = -2.
Why do you think the cart rolls farther when it starts from a higher position?
Answer:
It has higher PE which can be converted into kinetic energy. The car also has had more work done on it when its at a higher position.
Step-by-step explanation:
This is because the cart gains speed as it goes from the top of higher point to bottom.
What is 7x - 62 > 1 ?
Answer:
X>9
Step-by-step explanation:
Move all terms not containing x to the right side
7x>63
divide each term by 7 and simplify
7x/7 >63/7
cancel the common factor of 7
x>63/7
divide 63 by 7 x>9
x>9
11. If you want to enlarge a square with area 36 square inches
by a factor of 3, what would be its new perimeter?
a. 18 inches
b. 24 inches
c. 324 inches
d. 8 inches
e. 72 inches
Answer:
e. 72 inches
Step-by-step explanation:
Well, firstly to find the lengths of the sides, we would have to find the square root of 36 (which is 6, as 6x6=36).
Now, if we enlarge the square by SF 3, the new side lengths would be 6x3=18 inches. That is only one side.
Now we know the length of one side, we can do 18x4 (because as we all know, squares have 4 sides) to find the perimeter.
18x4=72 inches. This means the answer is option e.
Try It! Guppies 3 Tank 3 has a ratio of 3 guppies for every 4 angelfish. Complete the ratio table to find the number of angelfish in Tank 3 with 12 guppies. Using the information in Example 2 and the table at the right, which tank with guppies has more fish? Angelfish 4
Answer:
n
Step-by-step explanation:
Answer:
Step-by-step exp
If y = 17.5 when x = 12, find y when x = 6.
Answer:
What is 2x + 5 (y-1) when x=8 and y=5
Step-by-step explanation:
CAN SOMEONE HELP PLS
Step-by-step explanation:
If y = 17.5 when x = 12
when x = 6., then y=17.5/2=8.75
Jane's dog eats 3 pounds of food a week. How many weeks will a 24- pound bag last?
Answer:
The 24 pound bag of food will last the dog 8 weeks
Step-by-step explanation:
divide 24 by 3
=8
Answer:
3x = 24
Step-by-step explanation:
happy to help ya :)
Can somebody help me? I’m already failing :(
Answer:
125
Step-by-step explanation:
f(1)= the first time (32,000)
n= 9
r= .5 (each term is being mulitplied by .5 to get the next one
We have
32,000*(.5)^(9-1)
32,000*(.5)^8
=125
A lumber yard has scrap wood for sale. One employee recorded the measurements for the lengths of 50 different wood boards. The median length was recorded as 47.78 inches and the IQR was recorded as 14.54 inches. Someone discovers the measuring tape used started at 5 inches instead of 0. This means that each piece of wood is actually 5 inches shorter than the value recorded by the employee. What is the updated IQR
Answer:
The updated IQR is 14.54.
Step-by-step explanation:
The interquartile range is given by the difference between the 75th percentile(value that is greater than 75% of the measures) and the 25th percentile.
This means that each piece of wood is actually 5 inches shorter than the value recorded by the employee.
This means that the length of each wood is less than 5. However, the difference between the 75th percentile and the 25th percentile will stay the same, since both were subtracted by 5.
The updated IQR is 14.54.
The updated IQR is 14.54.
Interquartile range:The interquartile range should be provided by the difference between the 75th percentile and the 25th percentile.Since IQR was recorded as 14.54 inches. So the updated IQR is 14.54.Learn more about the range here: https://brainly.com/question/4135956?referrer=searchResults
simplify!!!! pls i need help
4/√6
Answer:
2√6/3
Step-by-step explanation:
Mark has 5 more pencils than Bill. If Mark has m amount of pencils, which expression gives the number of pencils Bill has?
Answer:
m-5 Tray would be Bill's amount of pencils
Help please i am stuck
Answer:
it is because so you can evenly add it
Step-by-step explanation:
because it is easyer to add 5/10 + 2/10
than 5/10 + 1/5 isnt it?
6х + Зу = 15
What is the ordered pair?
twice the sum of a number and six is sixty
Answer:26
Step-by-step explanation:60 minus 6, equals 52. you need to do 60-6 to get the twice the sum of a number. divide 52 by 2, since its twice the sum of a number. 52 divided by 2 is 26. you can check your answer by doing 26 times 2 plus 6, and get 60.
A bus travels 6/8 of a mile in 12 of a minute. How far will it travel in one minute?
Find the unit rate and simplify. Show all work.
Answer:
1/16 of a mile in one minute.
Step-by-step explanation:
1. you know that 3/4 mile = 12 mins and x mile = 1 min
2. To get 12 mins to 1 you divide the mins by 12
3. So you do the same for miles!
4. 3/4 miles divided by 12
5. which turns into 3/4 * 1/12
6. so your final answer would be 1/16 of a mile in one minute
find b and round to the nearest tenth... (geometry) plz help fast i’m behind
Answer:
5.51 cm
Step-by-step explanation:
What type of jobs offer commissions?
Answer:
Sales Engineers. ...
Wholesale and Manufacturing Sales Representatives. ...
Securities, Commodities, and Financial Services Sales Agents. ...
Advertising Sales Agent. ...
Insurance Sales Agent. ...
Real Estate Brokers and Sales Agents. ...
Travel Agents.
Step-by-step explanation:
What type of jobs offer commissions?
-Sales Engineers
-Wholesale and Manufacturing Sales Representatives
-Securities, Commodities, and Financial Services Sales Agents
-Advertising Sales Agent
-Insurance Sales Agent
-Real Estate Brokers and Sales Agents
-Travel Agents
a car travels 170 miles in 3 hours at this rate how many miles will the car travel in 1/2 hours
karen works for 85 hours throughout a two-week period. She earns $2,891.25 throughout this period. How much does karen earn for 8 hours
pls help me giving 33 points! enjoy <3
Solve for x in the diagram below.
Answer:
x = 20
Step-by-step explanation:
x + 2x + (x + 10) = 90° (right angle)
x + 2x + x + 10 = 90
Add like terms
4x + 10 = 90
4x = 90 - 10 (substraction property of equality)
4x = 80
x = 80/4 (division property of equality)
x = 20
Please help thanks help help help
Question is in photo
Answer:
d
Step-by-step explanation:
because it asks for up to 30
pls brainliest
Answer:
the answer is D hope that helps
Consider the arithmetic sequence: 6,2,-2,-6,...
If n is an integer, which of these functions generate the sequence?
Choose all answers that apply:
a(n) = 10 – 4n for n > 0
b(n) = 10 – 4n for n > 1
c(n) = 18 - 4n for n > 2
d(n) = 14 - 4n for n > 3
Answer: b(n)=10-4n for n >1
The function a(n) = 10 – 4n for n > 0 generates the given arithmetic sequence.
What is an arithmetic sequence?"It is a number sequence with a common difference between successive terms."
For given example,
Given arithmetic sequence: 6, 2, -2, -6, . . .
Here, 2 - 6 = -4
-2 - 2 = -4
-6 - (-2) = -4
This means, the common difference is d = -4
If n is a positive integer, then the function a(n) = 10 - 4n (n > 0) generates given sequence.
For n = 1
⇒ a(1) = 10 - 4(1)
⇒ a(1) = 6
For n = 2,
⇒ a(2) = 10 - 4(2)
⇒ a(2) = 2
For n = 3,
⇒ a(3) = 10 - 4(3)
⇒ a(3) = -2
For n = 4,
⇒ a(4) = 10 - 4(4)
⇒ a(3) = -6
Therefore, the function a(n) = 10 – 4n for n > 0 generates the given arithmetic sequence.
Learn more about an arithmetic sequence here:
https://brainly.com/question/10396151
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Division of Labor:
There were 4 hobos that arrived in town looking for work. They met with a business owner who said he could pay them for 200 hours of work. However, there was a catch. They could divide up the work anyway they wanted, but each hobo had to work the same number of days as he/she worked hours in 1 day. For example, If a hobo worked 8 hours a day, he/she had to work for 8 days. The other catch is that the laziest hobo of all did the negotiations with the business owner and then went back to present the plan to his/her pals.
The question is how many hours a day did each hobo work?
(please be asap lol i need help on this )
Answer:
16
Step-by-step explanation:
The equation of line WX is y = −2x − 5. Write an equation of a line perpendicular to line WX in slope-intercept form that contains point (−1, −2).
Answer:
Step-by-step explanation:
y = -2x - 5.....slope here is -2. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we will need is : 1/2. See how I flipped the slope of -2/1 and changed it to -1/2.....now I change the sign making our new slope be 1/2.
y = mx + b
slope(m) = 1/2
(-1,-2).....x = -1 and y = -2
now sub and find b, the y int
-2 = 1/2(-1) + b
-2 = -1/2 + b
-2 + 1/2 = b
-4/2 + 1/2 = b
-3/2 = b
so ur perpendicular line is : y = 1/2x - 3/2
Answer:
y = -2x - 5
m = -2
Step-by-step explanation:
The perpendicular line has a negative reciprocal slope.
m = 1/2
You are also given a point, so use the point slope formula.
y - y1 = m(x - x1)
y + 2 = 1/2(x + 1)
y + 2 = 1/2x + 1/2
y = 1/2x - 3/2
So the line perpendicular to y = -2x - 5 in slope intercept form is:
y = 1/2x - 3/2
or
y = 0.5x - 1.5
Chilling and dying
Spending lonely nights
Pandemic gotta go no cap, especially since it got me on this brainly app
please help hurry please
Answer:
The value of expression is 8.
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Turn the phrase into a problem
The quotient of ten and. a number
(10/n-3)+6
n = 2 so we replace it
(10/2-3)+6
(5-3)+6
= 2+6
= 8
Select all of the values.
(1.2 x 10-1)(7 x 104)
Complete the Scientific Notation
Answer:
it would be 8736x^2-728x
Step-by-step explanation: