Answer:
Step-by-step explanation:
I wouldn't consider it biased, but I'll bet a stats person would. Their reason would be that those who enter the cafeteria are select segment of a school population.
What about the kids who go to clubs at noon? or other activities.What about those who are only there part time and have jobs or just go home at noon?What about those who bring lunches and want to sit outside or even in their cars if they have one?What about those who are serving detentions?Those are just four exceptions. There must be others -- like a staggered lunch period.
Two planes just took off from Boston, MA. The first plane is traveling 2.5 times as fast as the second plane. After traveling in the same direction for 5 hours, they are 735 miles apart. What is the average speed of each plane? (Hint: Since they are traveling in the same direction, the distance between them will be the difference of their distances.)
Answer:
Plane 1: rate = 245 mph
Plane 2: rate = 98 mph
Step-by-step explanation:
Plane 2: Let r = rate
d = 5r
Plane 1: 2.5r = rate
d = 5(2.5r)
5(2.5r) - 5r = 735
12.5r - 5r = 735
7.5r = 735
r = 98
Sadie volunteers on the weekend at the Central Library. As a school project, she decides to record how many people visit the library, and where they go. On Saturday, 316 people went to The Youth Wing, 497 people went to Social Issues, and 460 went to Fiction and Literature. On Sunday, the library had 1400 total visitors. Based on what Sadie had recorded on Saturday, about how many people should be expected to go to The Youth Wing? Round your answer to the nearest whole number..
Answer:
347Step-by-step explanation:
Total visitors on Saturday:
316 + 497 + 460 = 1273Proportion of people who went to The Youth Wing on Saturday:
316/1273 = 0.248Expected number of people to visit The Youth Wing on Sunday:
1400*0.248 = 347 (rounded)What is the answer to this
Answer:
-23
Step-by-step explanation:
h(-5) = 4 * -5 - 3 = -20 - 3 = - 23 .... x ≥ -5
From the roof of a house the angle of depression of
the top of a tree 20 ft. high was found to be 30°. If
the distance between the house and the tree is
10√2 find the height of the house.
Answer:
GB = CD = 20 ft, GC = BD = 10√3 ft, ∠FAC = 30°, AB = ? Or, AG = 10 ft. hence, the height of the house (AB) = 30 feet is the required answer.
6ft to 74in as a fraction in lowest terms
Answer:
[tex]\frac{72}{74}[/tex] or [tex]\frac{36}{37}[/tex]
Hope that this helps!
........:::::::::::: have a great day
Answer:
thanks so much! you too :)
Step-by-step explanation:
Answer:
same to you.
Explanation:
You have 2 different savings accounts. For Account A, the simple interest earned after months is $1.90. For Account B, the simple interest earned after 18 months is $22.05. If the interest rate is 3.8% for Account A and 2.1% for Account B, how much is the principal in each account? Which account earned you the most interest the first month? Explain your answer.
Please help i need to turn it in soon!!
Answer:
The computation is shown below;
As we know that
The simple interest is
Simple interest = Principal × rate × time
For Account A, the principal would be
2 = Principal × 3.2% × 3
So, the principal is $20.83
For account B, the principal would be
38.50 = Principal × 2.2% × 30
So, the principal is $58.33
Now the interest for both the accounts are as follows
For account 1
= $20.83 × 3.2%
= $0.67
And, for the account 2
= $58.33 × 2.2%
= $1.28
As it can be seen that the account 2 has the highest interest
The same is to be considered
Step-by-step explanation:
PLEASE HELP
i will mark brainliest
Answer:
I think B
Step-by-step explanation:
Answer:
I agree and also think it is B.
Step-by-step explanation:
I hope this helped!
Help? I forgot everything about this.
In the figure shown, KN is parallel to LM.
When comparing KJN and LJM, Tara states that
Explain why Tara’s statement is correct.
Answer:
Triangle KJN is just a scaled down version of triangle LJM, so the angles are the same.
Tara’s statement is correct because with Reflexive property angle KJN and angle LJM are congruent.
What is the congruence theorem?Triangle congruence theorem or triangle congruence criteria help in proving if a triangle is congruent or not. The word congruent means exactly equal in shape and size no matter if we turn it, flip it or rotate it.
From the given figure, KN is parallel to LM.
Here, ∠KJN = ∠LJM (Reflexive property)
Hence, Tara’s statement is correct because with Reflexive property angle KJN and angle LJM are congruent.
To learn more about the congruent theorem visit:
https://brainly.com/question/24033497.
#SPJ2
1. find the greatest mass
that can be taken on exact
number of times from 360g
504g, and 672 g
Answer:
72g
Step-by-step explanation:
I hope it's right I figured it out by common factor
Which equation has infinitely many solutions?
es
A)
8x + 3
= 2x + 4
2
B)
15x + 5
= 5x + 2
3
C)
8x45
8x + 5
= 8x + 6
2
D)
9x + 6
= 3x + 2.
3
+ 2
Answer:
its c
Step-by-step explanation:
F(x)= x^2 - 7x +12
The above equation is in standard form. Write the above equation in factored form
f(x) = (x-r1)(x-r2)
r1 represents first root, r2 represetnts second root
What are the roots?
Remember, x-r1 = 0 and x-r2=0
Answer:
f(x) = (x - 3)(x - 4)
Step-by-step explanation:
f(x)= x^2 -7x +12 factors immediately into f(x) = (x - 3)(x - 4
The roots are 3,4
The probability of buying a small car is 1. What does that mean?
It is unlikely.
It is impossible.
It is definite.
It is likely
Answer:
it is unlikely if it is one out of 5
Step-by-step explanation:
Erica saw a skateboard on sale for $45.56. The original price of the skateboard was $75.99. What is the approximate percent discount on the skateboard? Round to the nearest whole percent.
Answer:
60%
Step-by-step explanation:
45.56/75.99 x 100 = 59.9
Rounded = 60%
Hello!
Discounts! I struggle myself with these, but a common method can help you find the price.
First, we'll subtract 45.56 from 75.99, to get our discount factor.
75.99 - 45.56 = 30.43
Now, we have to figure out the percentage of said factor. How much of 75.99 is 30.43. We must divide discount factor by original number.
30.43 ÷ 75.99 = 0.40044742729306 which would be equal to 40.044742729306%
Lastly we round 40.044742729306% to the nearest whole percent.
Our final answer is: 40%
waffletowne
Gimme some relaxation songs
Answer:
slowed songs
Step-by-step explanation:
Thank me later.
PLEASEEEEE HELP WITH BOTH OF THEM. I’LL MARK BRAINLIEST!
Answer:
its not clear
Step-by-step explanation:
the number is a 5 digit number.the value at ones and tens place is the highest single digit number .the hundreds place is double the thousands..the thousands place is double the ten thousands place is number 2 . write the numeral
Answer:
24,899
Step-by-step explanation:
A researcher plans to study the causal effect of a strong legal system on economy, using data from a random sample of U.S. counties. The researcher plans to regress national income per capita on whether the country has a strong legal system or not (an indicator variable taking the value 1 or 0, based on expert opinion). Do you think this regression suffers from omitted variable bias
Answer:
Based on expert opinion the regression does not suffer from omitted variable bias
Step-by-step explanation:
Based on expert opinion the regression does not suffer from omitted variable bias because its indicators taking values of 1 and 0 where 1 would represent taking action by the legal system and 0 would represent not taking action by the legal system. as
The researcher plans to regress national income per capita based on the effect of the legal system
applying the formula for addressing omitted variable bias ( attached below )
Pls help I’ll brainlest
Answer:
(D) 13/15
Step-by-step explanation:
Well there are 15 marbles in total.
There are 2 marbles that are blue
The qusection asks for the probability of NOT a blue
so 13/15
Jenelle draws one card from a standard deck of 52 cards.
Determine the probability of drawing either a jack or a queen?
Write your answer as a reduced fraction.
Answer =
Determine the probability of drawing either a jack or a spade?
Write ydur answer as a reduced fraction.
Answer =
Answer:
First Answer = 2/13
Second Answer = 4/13
Step-by-step explanation:
1. There are 52 cards in a standard deck. There is also a total of 4 jacks and 4 queens of these 52 cards. So, the probability of drawing either a jack or a queen after one pick would be 8/52 = 2/13.
2. There are 4 jacks, and 13 spades. However, one of those jacks is a jack of spades. So, instead of 17 possible picks, one overlaps, resulting in 16 possible picks. This is represented by 16/52 = 4/13.
The probability of drawing either a jack or a queen is 2/13 or 15.38%. In turn, the probability of drawing either a jack or a spade is 15/52 or 28.84%
Since Jenelle draws one card from a standard deck of 52 cards, to determine the probability of drawing either a jack or a queen, and to determine the probability of drawing either a jack or a spade, the following calculations must be performed:
Jack + Queen = 4 + 48/52 = X2/13 = X0.1538 = XJack + Spade = 4 + 1115/52 = X0.2884 = XLearn more in https://brainly.com/question/17193366
Which situation would most likely show a positive association?
O A. the age of a car and its resale value
O B. the weight of a dog and the amount of food it eats per day
o C. the number of minutes exercised per day and a person's weight
o D. the amount of time a boy plays video games and his grade in math
Answer:
B. the weight of a dog and the amount of food it eats per day.
This is because dogs only eat around 1/3 of their body weight a day, hence the dogs weight having a positive comparison value to the weight of the food that it eats.
Hope this helps!
Answer: B
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
A pyramid has a regular hexagonal base with side lengths of 4 and a slant height of 6. Find the total area of the pyramid.
Answer:
2+2=4
Step-by-step explanation: big brain
I WILL GIVE BRANLIY IF YOU ARE RIGHT
Answer:
B
Step-by-step explanation:
Answer:
9%
Step-by-step explanation:
Find the measure of 45.
65 = [?]
697
45
Enter
Answer:
Solution given:
<5+69=180°[co- interior angle]
<5=180°-69°=111°
<5=111°
Same side ineterior angles aree supplementary
<5+69=180<5=180-69<5=111°Step by step explanation please!!
Answer:
what do you mean on the question?
Step-by-step explanation:
A desk that is originally $130 is discounted by 45%. What is the sale price?
Answer:
$71.5
Step-by-step explanation:
130* (1-45%)
Answer:
$71.5
HOPE THIS HELPS :)
Can you guys help? Another question about writing out an equation of the line shown in the graph
Answer:
Step-by-step explanation:
how many triangles are there in the picture ?
Answer:
there are 10 triangles
Step-by-step explanation:
Write the equation of the circle with the given information.
Center: (2,8)
Radius: 3
Answer:
(x - 2)² + (y - 8)² = 9
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Here (h, k ) = (2, 8 ) and r = 3 , then
(x - 2)² + (y - 8)² = 3² , that is
(x - 2)² + (y - 8)² = 9
it takes four jars of in to record the store's inventory for 12 weeks at that rate how many jars of ink do you need to keep track of inventory for 33 weeks
Answer:
11
Step-by-step explanation:
So every 12 weeks there are 4 jars right? right.
1.) Divide 33 by 12 and you will get 2.75
2.) Then multiply 2.75 by 4 and you will get 11!
The problem is a bit hard to understand but I hope I answer your question correctly! Have a great day! :)