Answer:
may i see the question
Answer:
gjtudt57uydt57uy
Step-by-step explanation:
yhrsy4ry64eyhdrt
identify hypotheses.Write the null and alternative hypotheses in words and then symbols foreach of the following situations.(a) A tutoring company would like to understand if most students tend to improve their grades(or not) after they use their services. They sample 200 of the students who used their servicein the past year and ask them if their grades have improved or declined from the previousyear.(b) Employers at a firm are worried about the effect of March Madness, a basketball championship held each spring in the US, on employee productivity. They estimate that on a regular businessday employees spend on average 15 minutes of company time checking personal email, makingpersonal phone calls, etc. They also collect data on how much company time employees spendon such non-business activities during March Madness. They want to determine if these dataprovide convincing evidence that employee productivity changed during March Madness.(c) Since 2008, chain restaurants in California have been required to display calorie counts ofeach menu item. Prior to menus displaying calorie counts, the average calorie intake of dinersat a restaurant was 1100 calories. After calorie counts started to be displayed on menus,a nutritionist collected data on the number of calories consumed at this restaurant from arandom sample of diners. Do these data provide convincing evidence of a difference in theaverage calorie intake of a diners at this restaurant
Answer:
H0 : μ = 0 ; H1 : μ > 0 ;
H0 : μ = 15 ; H1 : μ ≠ 15
H0 : μ = 1100 ; H1 : μ ≠ 1100
Step-by-step explanation:
Null hypothesis H0 : mean grade of student after they use service of tutoring company is the same.
H0 : μ = 0
Alternative hypothesis H1 : mean grade of student after using service of the tutoring company increases
H1 : μ > 0
2.)
Null hypothesis H0 : Average or mean company time spent checking personal is 15 minutes
H0 : μ = 15
Alternative hypothesis H1 : Average or mean company time spent checking personal mail is not equal to 15 minutes
H1 : μ ≠ 15
C.)
Null hypothesis H0 : Average calorie intake of diner at restaurant.
H0 : μ = 1100
Alternative hypothesis H1 : There is a difference in average calorie intake of diner at restaurant.
H1 : μ ≠ 1100
Multiple Choice
Use the diagram below to answer questions 1–3.
Which angle is congruent to angle 1?
A. angle2
B. angle5
C. angle6
D. angle7
A line that includes the point (7,0) has a slope of 1. What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
[tex]y = x-7[/tex]
Step-by-step explanation:
To write the equation of the line in slope-intercept form, use the slope-intercept formula, [tex]y = mx +b[/tex]. Find real values for the [tex]m[/tex] and [tex]b[/tex] and substitute them into the formula.
1) We know that [tex]m[/tex] represents the slope, so substitute 1 in its place. However, we still need to find [tex]b[/tex], or the y-intercept. So, along with substituting that 1 in for [tex]m[/tex], substitute the x and y values for (7,0) for the x and y in the formula as well. Then, isolate [tex]b[/tex] to find its value:
[tex]y = mx + b\\0 = (1)(7)+b\\0 = 7 + b\\-7 = b[/tex]
So, [tex]b[/tex] = -7.
2) Now, just substitute the found values for [tex]m[/tex] and [tex]b[/tex] into the slope-intercept formula. Remember that the slope is [tex]m[/tex], so substitute 1 in, and [tex]b[/tex] is -7, so substitute -7 in its place as well. This gives the following equation in slope-intercept form:
[tex]y = 1x -7[/tex] or [tex]y = x-7[/tex]
A group of 28 people bought tickets to a show. The tickets cost $23.98 each.
What was the total cost of the tickets?
Enter your answer in the box.
Answer:
$671.44
Step-by-step explanation:
$23.98 * 28 (people) = $671.44
Answer:
$671.44
Step-by-step explanation:
At a football stadium 5% of the fans in attendance were teens. If there were 400 teens at the football stadium what was the total number of people
Answer: 8000
Step-by-step explanation:
Each 5% is 400.
10%= 800
10x10= 100% therefore
800x10 =8000.
8000 total fans
Gemma says that,2x/5 + x/7 = 3x/12
Why is Gemma wrong?
Work out the correct answer.
Racial dimorphism mesning
Answer:
Facial sexual dimorphism emerges at puberty: as the size and shape of the male and female faces increase with age, faces begin to show different secondary sexual characteristics (i.e., masculine or feminine).
a school paid $31.50 for each calculator, if the school spent 504 dollars on calculators how many did the school buy?
Will mark Brainliest. Please answer questions 9-14 :)
Write an inequality that represents the graph below.
Answer:
x ≤ -2
Step-by-step explanation:
The arrow is going left meaning. It is less than -2. A closed dot means "or equal to". A open dot means" greater than/less than"(normal).
You can ask me to explain further if you need me to!! :)
In ASTU, the measure of U=90°, the measure of T=35°, and US =
6.5 feet. Find the length of ST to the nearest tenth of a foot.
Answer:
I think it is it is 45.4°
Which figures are polygons?
Select each correct answer.
Figure A
Figure B
Figure C
Figure D
6- A restaurant charges $48 on a food bill. The tax on the food bill is 9%.
If you give the waiter a 20% tip, what is the total cost of the bill?
Answer:
$61.92
Step-by-step explanation:
Given data
Charge for food= $48
Tax= 9%
Tip=20%
Let us find the amount of the tax and the tip
Tax
=9/100*48
=0.09*48
=$4.32
Tip
=20/100*48
=0.2*48
=$9.6
Hence the total amount paid is
=48+4.32+9.6
=$61.92
Can yall help me what my teacher talking bout please this is worth 73 point put the answer nd all
Please help test due in 1 hour and it’s a grade! Will give good review and brainliest!
Answer:
Step-by-step explanation:
(3x-2)+(2x+16)=90
5x=76
x=15.2
I hope this helps
Answer and explain I’ll mark brainliest please help!!!!!
Answer:
230 were sold at the door
170 were sold in advance
Step-by-step explanation:
x=at door y=in advance
x+y=400
3x+2y=1030
y=-x+400
2y=-3x+1030
y=-3/2x+515
-x+400=-3/2x+515
x=230 y=170
There is a couple more
Answer:
m<4= 81 by the alternate interior postulate
Which is greater 27 or 72
Answer:
72??? For greater wise? Then yeah, 72.
Step-by-step explanation:
Answer:
there both equal if you add 2 and 7 equals 9
if you had 7 and 2 equals 9
Step-by-step explanation:
A small jar of peanut butter sells for 0.08 per ounce. A large jar of peanut butter sells for $1.20 per pound. Which is the better buy and by how much (in cents per pound)?
Answer:
a small jar of penuts buteer sells for 0.08 per ounce
A large jar of penut buttter sells for $1.20 per pound
the answer is :
hope it will help you
Your friend says that enough information is given to prove that x= 15. Is your friend correct?
please help
Answer:
Yes, it appears so.
Step-by-step explanation:
Based on the fact that angle L and angle P are congruent, the angles at point M are also congruent to their opposites. All of this points to triangles MNP and MLK being the same, which would mean that x does equal 15. Sorry I couldn't state any specific laws or anything.
Find the measure of angle B and angle C.
Answer:
angle B is 135 degrees and angle c is 45 degrees
help!!!
For which points is the x-coordinate less than 3?
Answer:
C and D.
Step-by-step explanation:
C is ( 1 , 1 ) and D is ( -2.5 , -1.5 )
4. The teacher recommends that students read for 20
minutes each night. How many pages will the
student complete?
proportional relationships
Rewrite 11/12 and 8/9 so that they have a common denominator.
Then use <, =, or > to order 11/12 and 8/9
Answer:
33/36 > 32/36
so, 11/12 > 8/9
..................
Answer:
11/12 = 33/36. 8/9 = 32/36. 33/36 > 32/36
Find the Value of X.
Answer:
Check pdf
Step-by-step explanation:
Is x2+8x+16 a perfect square?
Answer:
yes, it's factors are (x+4)²
Step-by-step explanation:
Answer:
It is a perfect square.
Step-by-step explanation:
(5,-6) and (2,-6) find the distance between each pair points in units
Answer:
The distance between the points is 3.
Step-by-step explanation:
Hope it helps ;)
Cali records the number of articles she
writes each month for a year.
Articles Each Month
5
5
3
6
2
5
5
4
4
7
9
2
In what percent of the months does
she write MORE than 3 articles?
%
Answer: 75%
Step-by-step explanation:
9/12 months are number larger than three. 9/12 simplified is 3/4 and 3/4 is 75%
1. The temperature on a winter night in Kansas is - 6 Celsius. The
temperature decreases by 8 Celsius. What is the new temperature, in
degrees Celsius? *
100 POINTS AND WILL GIVE BRAINLIEST Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
x
2
-1
10
1
2
y
Use the function rule to complete the table.
- 10x + y = 4