The new TCL LED TV at Best Buy is regularly $299.
a) You have a 25% coupon. What is the sale price after the discount? $
b) What is the total purchase price if sales tax is 8.5%? $
Answer:
1) 224.25
2) 243.31
Step-by-step explanation:
Type the correct answer in each box.
Lake Temperature (°C)
Lake A
-2
Lake B
0
Lake C
2
Lake D
-1
°C.
The coldest lake has a temperature of
°C, and the warmest lake has a temperature of
Reset
Next
Answer:
Coldest has - 2° C while warmest had 2 °C
What type of study is described? (NOT A MULTIPLE CHOICE)
a. Managers of a forest preserve want to know what percent of the visitors with dogs keep their dogs on a leash. The park assigns an employee to count the numbers of visitors that do and do not use a leash.
b. A local newspaper polls citizens of a city about whether they support a local tax levy?
Answers:
a) Observational Studyb) Survey===========================================================
Explanation:
Part (a)
We have an observational study because the park ranger is observing the people coming and going, as to whether they leash their dog or not. The people being counted are not asked to fill out a form or survey, so that's why we aren't conducting a survey here.
Ideally, the park ranger should somehow make a visual note of each person so they do not count that person more than once. For example, let's say we had 500 people go through the park. Of that 500, the true number of people who leash their dogs is 20. I don't know what the true percentage is, but let's just go with this hypothetical situation. If those 20 people pass back and forth where this manager is taking note, then he might overcount some individuals and inflate that 20 to say 40 or 60, or perhaps even 100. This is if the ranger doesn't look at the individuals closely and simply marks a tally for "leash" vs "no leash". So that's why there needs to be some quick method to distinguish between any unique guest of the park.
--------------------------------
Part (b)
In contrast to part (a), we have a survey here this time. Each person is asked directly about a specific narrow well defined question. The newspaper reporter isn't going out into the field to simply watch or listen to people discuss about taxes, so that's why we don't have an observational study going on. The reporter should try to keep the question as bias-free as possible. Also, they need to ensure that the sample is representative of the population.
In neither part (a) nor part (b) is an experiment being done. An experiment requires two groups: a treatment group and control group. Also, the researcher would directly affect the treatment group to somehow change one specific aspect, while keeping the control group the same (though possibly giving a placebo of some kind). For each of these, the researcher is simply trying to stay out of the picture as much as possible while gathering the external data.
2) Heather received a 32% discount on a
$34 shirt. After the 7% sales tax was added.
how much did she pay for the shirt?
A) $24.74
B) $22.60
C) $23.12
D) $21.50
Answer:
a
Step-by-step explanation:
34 x .32=10.88
34-10.88=23.12
sale price was 23.12
1.61 in tax
23.12+1.61(rounded to 162)
24.74
Hii, Ok so basically I really need help with these questions they are really difficult and don't worry rewards are plenty a come. On the last question whoever give the right answer and is the quickest will get brainliest. But do not worry whoever answers this question will get a
1. Thank you *heart*
2. 5 star rating
3. Comment
So you may be wondering what the question is well take a look oh and by the way please do not give a random answer and its a maths question
Given that angle A = 284 degrees, work out x
given that f(x)=x^2+5x-5, find f(2)
Answer:
9
Step-by-step explanation:
for this problem, plug in 2 for every x
2^2 + 5(2) -5
4 + 10 -5= 9
Answer:
9
Step-by-step explanation:
plug 2 in whenever you see the x
the trip took 1 hour and 40 minutes 30% of the time the car traveled on rough roads how much time did the car travel on rough roads?
A. 70 min B. 45 min C. 40 min D. 30 min
40.39 is what percent of 65?
A.60% B. 0.6% C. 39% D. 65%
Please help I need it now this is due ate 6:00 am please
Answer:
D
NOTE: 1 HOUR IS 60 MINUTES
do 60+40 gives u the minute which is 100
then 100 x30% = 30
NOTE: for the second round up the digit and multiply it by 65
so 40.4 x 65 gives 62. something
the nearest number is 60 % so 60% is the answer
Please mark as brainliest
Have a great day, be safe and healthy
Thank u
XD
Answer:
D
NOTE: 1 HOUR IS 60 MINUTES
do 60+40 gives u the minute which is 100
then 100 x30% = 30
Please mark as brainliest
Have a great day, be safe and healthy
Thank u
XD
Freeee BRAINLY okkkkkkkkkkkkk
Answer: 80 + 2x +10 = 180
Step-by-step explanation:
Sorry if I'm wrong I just think that's the answer.
I always get lost what is 1-1=. Is it 0 or 1.??????
Answer:
1-1=0 haha
Step-by-step explanation:
if you have one ball and then take away one ball, you will have zero balls
Dunkin Donuts sold 1,600 drinks in one day. Of those drinks, 87.5% of them were coffee . How many of the drinks were coffee?
Answer: 1400 is coffee.
Step-by-step explanation:
*HELP QUICKLY PLEASE.*
which of the following is correct? grandson needs help.
according to his teacher this needs to be done within the hour.
Charlie wants to buy a new bike. The bike costs $125 and he has a coupon for a 20% discount. How much money will he get to save with the discount?
Answer:
He will get to save 25 dollars.
Step-by-step explanation:
percentage formula:
($125×20) ÷ 100
(2500) ÷ 100
= 25
Answer:25
Step-by-step explanation: because you divide 11by20 hthen you add in th ermaneder
The area of a triangle is 30 square feet. If the height of the triangle is 5 feet, what is the base of the triangle?
Answer:
150
Step-by-step explanation:
Answer:
12 feet
Step-by-step explanation:
Area of a triangle is A = 1/2 b h
Plug in:
Area = 30
Height = 5
30 = 1/2 (5)b
Divide by 1/2:
30 / 1/2 = 60
60 = 5b
Divide by 5:
60 / 5 = 12
12 = b
Base = 12 feet
What is the area of this face?
10 in.
20 in.
5 in.
10 in.
10 in.
5 in.
10 in.
Answer:
its 200
Step-by-step explanation:
the supermarket down the street from tina sells a cereal like beard called delici-osos. Last week, they sold 45 boxes of cereal. How many boxes will they sell in 7 weeks?
Answer:
they will sell 315 boxes in 7 weeks
Step-by-step explanation:
This is because you have to multiply 45 x 7 = 315
1/3 of 4 feet=___inches
Plz help m confused ♀️
Answer: 16in
4 feet= x inches
4*12= 48
48/3= 16
1/3 of 4 feet is 16in
Answer:
16 inches
Step-by-step explanation:
(1 / 3) * (4 feet)
Please help ASAP I have no idea
Answer:
73.4
Step-by-step explanation:
I’m 96% sure this is the answer
Combine all like terms to simplify the expression.
12x +5-4x+2x2
a.) 8x2 +5
b.) 10x +5
c.) 2x2 + 8x +5
d.) 17 - 4x
12x + 5 - 4x + 2x² =
= 2x² + 12x - 4x + 5 = 2x² + 8x + 5
Please help!!!! !!!!!!!!
Step-by-step explanation:
Sum of all interior angles = 900°
A+B+C+D+E+F+G=900
120+B+148+90+142+130+129=900
B=900-759
B=141°
SOLVE THE LATRAL AND TOTAL SURFACE AREA OF THE CYLINDER
I NEED AN EXPLANATION
radius r=7
height h=9
let pi π = 3.14159
Casey paod $32 for a book that was on sale at 20% off. WHat was the original prize for that book
Answer:
$38.4
Step-by-step explanation:
20%=0.20
32*0.20=6.4
32+6.4=38.4
Solve each equation by taking square roots NEED THIS ASAP WILL GIVE BRAINLIEST
Answer:
#3. n = 1#5. x = 2Step-by-step explanation:
#3.
n x n - 5 = -4
n x n = 5 + -4
n x n = 1
n = 1
#5.
7x^2 + 1 = 29
7x^2 = 29 - 1
7x^2 = 28
x^2 = 28 / 7
x^2 = 4
x = 2
Hope that helps!
Jessica is selling girl scout cookies and recorded how many she sold in one afternoon. She sold Thin Mints, Trefoils, and Samoas. a) She sold 54 boxes of Thin Mints, which was 60% of the total number she sold. How many total boxes did she sell? (3 points - 2 pts for correct answer, 1 pt for showing work)
Answer:
total # of boxes sold = 90
Step-by-step explanation:
54 is 60% of total #
54 = .6x
x = 54/0.6 = 90
Find the value of x.
143
2x° 152
116°
to
1259
140°
139°
Answer:85 degrees
Step-by-step explanation:
Formula for sum of interior angles is (n-2)180. Since there are 7 sides, n-2 is 5.
5 x 180 = 900
Add all the angles given and subtract sum from 900 and you are left with 85 for the missing angle.
20% of 400 is what number
please help , thank youu
Answer:
9.) would be 89 and 10.) would be 1500 ft
Answer:
A. 89 B. 1200 ft
Step-by-step explanation:
A.
5(-4²)+9
5(16)+9
80+9
89
B.
-150+1350=
1200
A researcher plans to conduct a test of hypotheses at the 1% significance level. She designs her study to have a power of 0.90 at a particular alternative value of the parameter of interest. What is the probability that the researcher will commit a Type II error for the particular alternative value of the parameter at which she computed the power
Answer:
P(Type II error) = 0.1
Step-by-step explanation:
In statistics, the formula for power of a hypothesis is given by;
Power = 1 - P(Type II error)
Where P(Type II error) is the probability of making a Type II error.
We are told that the power is 0.9.
Thus;
0.9 = 1 - P(Type II error)
Making P(Type II error) the subject gives;
P(Type II error) = 1 - 0.9
P(Type II error) = 0.1
1. 5, 10, 15, 20.....
a. Rule:
b. Next three:
2. 1.3, 1.5, 1.7, 1.9....
a. Rule
b. Next Three
Answer:
1. a) rule is that it adds 5 every time
1.b) 25, 30, 35
2.a) rule is that it adds 0.2 every time
2.b) 2.1, 2.3, 2.5
Mr.Green took a poll of 80 students to find out how they get to school.How many students in total ride the bus to school? 8 students,12 students,24 students,or 32 students?
Answer:
This problem needs more information.
Step-by-step explanation:
Choose the correct simplification of (4x − 3)(3x² − 4x − 3).
Answer: 12x^3−25x^2+9
^ are the exponents
Step-by-step explanation:
i think the answer is 3x^2-x