Select the correct answer.
Energized and Powercell are companies that manufacture alkaline batteries. Both companies claim that their batteries last longer than the average alkaline battery.
Anju decided to conduct a test to see whether their claims were true. He purchased 30 Energized batteries, 30 Powercell batteries, and batteries of other brands to conduct the test. The purchase selection was random, and the test was unbiased. The batteries that lasted longer than the average of all the batteries were stated to have passed the test. The batteries that did not last as long as the average of all the batteries were stated to have failed the test. The results for Energized and Powercell are displayed in this table.
Answers
Answer:
both manufactures' claims are true because most of there batteries lasted longer than the average alkaline battery.
Step-by-step explanation:
PLATO USERS
Answer:
Both companies claim that their batteries last longer than the average alkaline battery is true .
Step-by-step explanation:
Both companies claim that their batteries last longer than the average alkaline battery is true because most of the batteries of these companies did passed the test to last longer.
As we can project from that table given that around 77% Energized batteries passed the test and around 67% powered cell batteries passed the test.
hence we can also inferred from here that Energized batteries are more consistent.
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Related Questions
CAN SOMEONE HELP A DUMMY OUT PLZ
Find the value of h for the triangle.
A14
h=1
No links plz :)
Thanks:)!!
Answers
9514 1404 393
Answer:
5.3
Step-by-step explanation:
The formula for the area of a triangle is ...
A = 1/2bh . . . . where b is the base length and h is the height.
The figure gives an area and shows b=h, so we have ...
14 ft² = 1/2(h)(h)
28 ft² = h² . . . . . . . . . multiply by 2
h = √28 ft ≈ 5.3 ft . . . . . take the square root
Fitness can be measured by the rate of oxygen consumption during exercises with more fit people having higher rates. Unfortunately, this measurement is quite costly to obtain, and so an experiment was done to see if this measurement could be predicted from the time it takes (in minutes) to run 1500 m. The following computer output was obtained. Which of the following is NOT CORRECT?
a. For every additional minute it takes to run the 1500 m the estimated oxygen consumption rate decreases by 3.31.
b. The fitted regression line is approximately Y = 82.42(runtime)
c. A person who runs 1500 m in 10 minutes would have an estimated oxygen consumption rate of about 50.
d. There is good evidence that there is a relationship between oxygen consumption and the run time.
e. The slope is 82.42.
Answers
Answer:
b. The fitted regression line is approximately Y = 82.42(runtime)
Step-by-step explanation:
The regression line is Y= aX + b
here b= 82.42 a = -3.31
Hence the regression equation is
Y= 82.42- 3.31 X
where x is the runtime and the slope is given by b.
Option a is correct because from the above equation we see that for every additional minute it takes to run the 1500 m the estimated oxygen consumption rate decreases by 3.31.
Option b is incorrect because the runtime is not given by Y it is given by X.
Option C is correct as
Y= 82.42-3.31*10
Y= 82.42-33.1
Y= 49.32 almost 50
Option d is also correct that the equation line shows a relationship between oxygen consumption and the run time.
Option e is also correct because the slope is given by b and b= 82.42
what is the domain of the relation [(7,10), (7,17), (7,24),(7,31),(14,10)
Answers
Answer:
{7,14}
Step-by-step explanation:
Domain is always the X= Values
Answer:
it is 7.
Step-by-step explanation:
Domain = x values
range = y values
A clinical trail tests a method designed to increase the probability of conceving a girl. In the study 280 babies were born, and 252 of them were girls. Use thr sample data to construct a 99%, confidence interveral estimate of the percentage of girls vorn. Baced on the result foes the method appesr to be effective?
Answers
Suppose AABC has coordinates A(2,3), B(5, 1), C(4.4), line m is the line with equation y = -5, and AABC is mapped to AA'B'C' by applying the glide
reflection T(-2, 1) Rm Select all the statements that are true about AA'B'C'.
A All the vertices of LA'B'C' are in Quadrant II
B. All the vertices of AA'B'C' are in Quadrant IV.
C. The x-coordinates of A', B, and C are all negative,
D. The y-coordinates of A, B, and C are all positive,
E The y-coordinates of A' B', and C are all negative,
Answers
Based on the information in the graph, in which month do 24% of the students have a birthday?
Answers
Answer:
23
Step-by-step explanation:
I'm confused can someone please help?
Answers
Answer:
your answer is C i hope this helps sorry if i am wrong
Step-by-step explanation:
Help plz no links unhelpful answers will get reported use formulas plz. I'm being gneerous
Answers
Answer:
what's the question?? I b.d ont get it
kira´s best distance in the long jump is 3 7/10 meters.
Which decimal is equivalent to 3 7/10?
help me pleaseee
Answers
Answer:
3.7
Step-by-step explanation:
Which data set would be numerical?
Eye color
Kinds of pets
Age
Favorite food
Answers
The selling price of a bicycle that had sold for $55,000 last year increased by 15%. What is the new price?
Answers
Answer:
$ 63,250
Step-by-step explanation:
55,000 x 0.15 = 8,250
55,000 + 8,250 = 63,250
Answer:
$63,250
Step-by-step explanation:
To find the percentage of 55,000, multiply 55,000 x 0.15, giving you 8,250. Add this to 55,000 to get 63,250 dollars :)
What is the answer please tell me
Answers
Answer:
45 cm²
Step-by-step explanation:
Area of polygon = Area of square + (area of triangle)
= (side * side) + (1 / 2 * bh)
= 5*5 + (1 / 2 * 5 * 8)
= 25 + (20)
= 25 + 20
= 45 cm²
The ages of a bowling team are 33, 25, 39, and 37. Mary just joined the team and is 34 years old.
How will Mary's age affect the mean and median ages of the team?
A.
It will raise both the mean and the median.
B.
It will raise the mean and lower the median.
C.
It will lower the mean and raise the median.
D.
It will lower both the mean and the median.
Answers
Answer:Its Either A B C OR D
Step-by-step explanation:
I Think It's A
Plz help me well mark brainliest if correct!!....
Answers
Answer:
a. 28 centimeters
i think sooooooooo
Please help me asap i need help i will give 10 points
Answers
Answer:
C. 189
Step-by-step explanation:
Each triangle is 27 which makes it 108, and 108+81=189
Surface area = sum of all area, which is the total of 4 triangles and 1 square.
1 square = 9 x9 = 81
each triangle = (6 x 9)/2 = 27
so 4 triangles = 27 x 4 = 108
=> total = 108+ 81 = 189
Solve the proportion 7/5=21/x
Answers
Answer:
=15
Step-by-step explanation:
Tan 18= x/75 solve for x
Answers
Answer:
x ≈ 24.4
Step-by-step explanation:
Given
tan18° = [tex]\frac{x}{75}[/tex] ( multiply both sides by 75 )
75 × tan18° = x , then
x ≈ 24.4 ( to 1 dec. place )
What is the difference of the whole number and the mixed number with an improper fraction below? 8 7/4 -7 A. 2 1/2 B. 2 3/4 C. 4 3/4 D. 2 1/4
Answers
Answer:
D. 2 1/4
Step-by-step explanation:
8 7/4 - 7
9 3/4 - 7
2 1/4
Plzz help me well mark brainliest if correct!!....
Answers
Answer:
A) 3 cm
Step-by-step explanation:
since length x width = area, divide the area by the length. 30/10 = 3 (the width.)
Answer:
Option A
Step-by-step explanation:
ANSWER THIS ASAP NO FILE AT ATT!! THIS MY LAST QUESTION JUST GET IT RIGHT PLEASE
Answers
Answer:
I believe the answer is A
Answer:
A is your answer I think
Step-by-step explanation:
maybe wait for someone else to answer as well haha
803.84 rounded to the nearest tenth?
Answers
Answer: 800
Step-by-step explanation:
Someone help ASAP I REALLY NEED HELP
Answers
Answer:
10 i think
Step-by-step explanation:
because 20+10+10=40
Answer:
70
Step-by-step explanation:
Let the claire pointa be x then
Mean = Sameson X / N
40= 20+30+x/3
40×3=50+x
120-50=x
Therefore x=70
I NEED HELP ASAP
IGNORE THIS TEXT: Ali wants to buy a car that costs $8,000. One option is to use a monthly payment plan. Her monthly payments would be $143.75 over 5 years. The second option is to pay the $8,000 at the time of purchase. About how much more will Ali pay using the monthly payment plan than paying the $8,000 at the time of purchase?
Answers
Answer:
He would be paying 625 extra if he paid monthly.
Step-by-step explanation:
143.75 x 12(5) = 8,625.
Answer:
Help I need HELP FAST I give brainliest.
IGNORE THIS TEXT: Which graph shows this solution set? y is greater than negative 2 and y is less than or equal to 2Answer options with 5 optionsA.The graph shows a number line.Short description, The graph shows a number line.,Long description,A number line has negative 2 and positive 2. At negative 2 and positive 2, there are filled in circles. Between negative 2 and positive 2, the number line is shaded. B.The graph shows a number line.Short description, The graph shows a number line.,Long description,A number line has negative 2 and positive 2. At negative 2 and positive 2, there are open circles. Between negative 2 and positive 2, the number line is shaded. C.The graph shows a number line.Short description, The graph shows a number line.,Long description,A number line has negative 2 and positive 2. At negative 2, there is an open circle. At positive 2, there is a filled-in circle. Between negative 2 and positive 2, the number line is shaded. D.The graph shows a number line.Short description, The graph shows a number line.,Long description,A number line has negative 2 and positive 2. At negative 2, there is an open circle. At positive 2, there is a filled-in circle. The number line is shaded to the left of negative 2 and to the right of positive 2. E.The graph shows a number line.Short description, The graph shows a number line.,Long description,A number line has negative 2 and positive 2. At negative 2, there is filled in circle. At positive 2, there is an open circle. The number line is shaded to the left of negative 2 and to the right of positive 2.
Solve the equation 2032 * 93 equals?
Answers
Answer:
188976
Step-by-step explanation:
2032 x 93 = 188976
The plumber charged Mrs. Evans $225.00 for materials and $35.00 an hour for labor to fix her leaky sink. The total bill came to $347.50. How many hours did it take the plumber to fix the sink?
Answers
Answer:
3.5 or 3[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
First, subtract. 347.50 - 225.00 = 122.50
Then, divide. 122.50 ÷ 35 = 3.5
Next, you can turn the decimal into a fraction 3[tex]\frac{1}{2}[/tex]
Lastly, have a wonderful day! :)
what property is occurring in the following example? 11.5 + (- 11.5) = 0
A- Commutative
B- Associative
C- Addictive Inverse
D- Distributive Property
PLEASE I NEED ANSWERS!!
Answers
Answer: A property occurring in the example 11.5 + (-11.5) = 0, is additive inverse.
Step-by-step explanation:
A property where sum of any number and its inverse is equal to zero is called additive inverse property.
For example, 11.5 + (-11.5) = 0
Here, 11.5 is the number and its inverse is (-11.5). The sum of both these is equal to zero. Hence, it shows a property of additive inverse.
Thus, we can conclude that property occurring in the example 11.5 + (-11.5) = 0, is additive inverse.
Which of these could be the graph of F(x) = 3 • (0.5)^x?
Answers
The graph of F(x) = 3 • (0.5)^x is represented by the third graph in the image. The correct option is C.
What is a graph?
A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data. A function is defined as the expression that set up the relationship between the dependent variable and independent variable.
The graph of the function is cutting an intercept at point 3 at the y-axis and is lying about the x-axis. The graph of the function is attached with the answer below.
Therefore, the graph of F(x) = 3 • (0.5)^x is represented by the third graph in the image. The correct option is C.
To know more about graphs follow
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Can someone please help me I will mark u brillant
Answers
Answer:
I'm sorry for answering like that, so here is my actual answer: It is the third one. Again I'm very sorry.
Step-by-step explanation:
Answer:
The last option
Don't mind this it's just so I can post the answer.
How many 5 digit zip codes are possible? Zero can be a digit.
Answers
Answer:
There are ten possible digits (0 to 9).
If they can be repeated, you're looking at 10 * 10 *10 * 10 * 10, or 105
This means 100000 possible zip codes if repeatable.
If not, you're looking at one less each time:
10 * 9 * 8 * 7 * 6
90 * 56 * 6
540 * 56 = 30240 zip codes without any repetitions.
Please answer asap. No links
Answers
Answer:
0.17
Step-by-step explanation:
First, we can easily calculate that the area of the rectangle is 7 * 5 = 35
Next, to find the probability of choosing a point in the triangle, we need to find the area of the triangle compared to the area of the rectangle. Notice that the square has nothing to do with the solution because we are only interested in finding the probability for the triangle!
Since the area of the triangle is base * height / 2 or 4 * 3/2 = 6, the probability is 6/35. Plugging this value in the calculator gives us 0.17