Answer: C) He should also take a sample from each of the other history classes in all of the other grades in the middle school.
Step-by-step explanation:
In order for his sample to be representative of all middle school students Leo: C) Should also take a sample from each of the other history classes in all of the other grades in the middle school.
What is sample?Sample can be defined as the data that is randomly collected by a researcher so as to reach or draw a conclusion.
Since only one grade is being surveyed which is Mr. Barnes’s eighth-grade history classes, he should as well carryout the survey on Ms. Lopez and Mrs. Frank history class.
Inconclusion he should also take a sample from each of the other history classes in all of the other grades in the middle school.
Not only students in the 8th grade are in the middle school, there are other students in other grades who are in the middle school and are enrolled in history classes. Leo's sample is only from one grade of the middle school. In fact, including Ms. Lopez's and Mrs. Frank's classes in the selection of sample is not sufficient. Leo has to take a sample from the remaining grades to avoid making a wrong conclusion as a result of bias in the choice of data.
I answered the question at first but I got it wrong could you help me figure it out?
30% is wrong though.
Answer:
The answer is 55%
Step-by-step explanation:
If you look at the answer the average is greater on that side.
Hope this helps!!!
HELP! ASAP
Select all equations that have x = 2 as a solution
Answer:
Need the rest of the problem
Answ
I'M NOT SURE
Step-by-step explnation:
(NEEDS HELP!) Haley needs to get a ride home from the airport she wants to use a rideshare company, but she needs to choose between two different companies Company A charges a flat fee of $10 plus $0 50 per mile
Company B charges a flat fee of $8 plus $0.75 per mile Let Z represent the number of miles of a ride, and let Y represent the total price paid for a ride
The system of equations below represents this situation
Company A: y = 0.50x + 10
Company B: y = 0.75 + 8
(answer choices in picture)
Answer:
i think the last one
Step-by-step explanation:
the other ones are just kinda don't make sense
Answer:
The last one
Step-by-step explanation:
is the 72 or right or nah this is way to confusing for me
Answer:
36mm2
Step-by-step explanation:
The ratio between sides is:
[tex]\frac{12}{8}[/tex]
Since this is the proportional area, we square this ratio
[tex](\frac{12}{8} )^{2}=\frac{12^{2} }{8^{2} }= \frac{144}{64} =2.25[/tex]
If the minor triangle has an area of 16 mm2, then the greater triangle will have an area of:
[tex]16(2.25)=36mm^{2}[/tex]
Hope this helps
16.4 solve Andre''s inequality and explain what the solution means: 3x + 10 <30
Answer:
x<20/3 or about 6.67
This means that x is equal to any number less than 20/3
Step-by-step explanation:
Undo everything being done to the variable.
3x+10<30
1: Subtract 10 from both sides to undo the addition.
3x<20
2: Divide both sides by 3 to undo the multiplication.
x<20/3
Griffins's driveway is 21 feet long.
Choose the word and number to complete the sentence correctly.
To convert 21 feet to yards
?
21 by
?
.
Name a set of vertical angles in the image below:
Answer: Choice D
[tex]\angle 1 \text{ and } \angle 3[/tex]
Reason:
Whenever we have two lines cross to form an X shape, the vertical angles are always opposite one another. They do not have to be vertically stacked (as they can be side by side like angles 2 and 4 are). Vertical angles are always congruent.
What is the Volume of the prism?
Answer:
The formula for the volume of a prism is V=Bh , where B is the base area and h is the height. The base of the prism is a rectangle. The length of the rectangle is 9 cm and the width is 7 cm.
Step-by-step explanation:
Cathy borrows $3280 at 0.3% simple interest per month. When Cathy pays the loan back 9 years later, what is the total amount that Cathy ends up repaying?
PTR/100
$3280*0.3*9/100
2x² = 8
Find x
Most helpful answer will get brainliest
Answer:
x = 2, x = -2
Step-by-step explanation:
2x^2 = 8
divide both sides by 2
x^2 = 4
This is a perfect square!
square root on both sides
x = 2, or -2
(2 negatives multiplied = positive)
Check work
2*(2)^2 = 8
2*4 = 8
8 = 8 :)
Check work
2*(-2)^2 = 8
2*4 = 8
8 = 8 :)
the mayor is hoping to develop a new outdoor park area. he decides to survey the town residents by surveying YMCA member on a Saturday morning. Is this a random sample? Justify your answer.
Answer:
it is not a random sample because it is not a good representative for all the population because what the mayor can do is to choose a random sample for all people or everyone that live in the town to get the best results he can get because if he does survey ymca he would not get the results that he expected so hopefully that is the correct answer or explanation.
Step-by-step explanation: I hope this helps and sorry if i got it wrong.
ok so, I have to do this question as a mixed number: Neil made his mother a garden. The width is 9
4
5
ft and the length is 5
3
4
ft. What is the area of the garden?
brainliest** also do all three in the picture and show work
Answer:
There is no picture sorry
Step-by-step explanation:
Max received financial assistance to pay for his college education. Max earned high grades in high school and scored well on his standardized tests. As long as Max maintains a B average, his college will cover all of his tuition.
Which kind of financial assistance did Max receive?
Answer:
here it is
Step-by-step explanation:
https://brainly.com/question/27388407?answeringSource=feedPublic%2FhomePage%2F5
BRAINLIEST!!!!!
ANSWER THE QUESTIONS!!!
1.B
2.B
im not sure about this one but ill have to say c sorry if im wrong on 3
4.A i think
A controlled variable is an element that remains unaffected and unchanged by other variables.
:)
Step-by-step explanation:
The coach for a basketball team wants to buy new shoes for her 12 players.
Super Sports is offering a 20% discount on each pair of shoes, which were originally priced $72.50. A 6.5% sales tax will be applied to the discounted price.
The same shoes are also available on Double Dribble’s website for $54.75. A 9% processing fee will be applied to the cost of the shoes, plus a shipping fee of $5.99 for each pair.
What is the difference in the total cost of the 12 pairs of shoes between the two stores?
Answer:
46.77
Step-by-step explanation:
First, we need to determine what the final price is for each pair in these two stores. In Super Sports, the shoes were originally $72.50, but they had a 20% discount. This means that you would pay for 80% (0.8) of the price:
72.50 * 0.8 = 58
A 6.5% sales tax will be applied to the discounted price. This means you would pay for 106.5% of the price:
58 * 1.065 = 61.77
On the other hand, at Double Dribble, the shoes are originally $54.75. A 9% processing fee is applied to this:
54.75 * 1.09 = 59.67
plus a shipping fee of $5.99:
59.67 + 5.99 = 65.67
If we were to buy 12 pairs of shoes, the prices would be:
Store A: 61.77 * 12 = 741.24
Store B: 65.67 * 12 = 788.01
The difference would be $46.77 (788.01 - 741.24).
if im right pls give Brainliest
If the perimeter of an equilateral triangle is 60 cm, then what is its area?
can you help thank you i will give branlyist if you are correctt
Answer:
The answer is: Y is always 2
Step-by-step explanation:
You can see this because as you go left to right the y corrodinate will always be 2 as the x increases/ decreases.
Brittany graphs (6,3) on a coordinate grid. Which describes where she should plot the point if she starts at the origin?
Answer:
She would be 6 to the right and 3 up
Step-by-step explanation:
Think abt the abc's x comes before y. so 6 is x or horizontal and 3 is y or vertical!
i hope it helps!
Brainliest, thank you in advance! Explain how you get your answer well!
Answer:
There is only two endpoints,
Step-by-step explanation:
as you can see there is a straight line with 2 rays on each side, remember that rays do not have an ending they just keep going and do not stop, but the straight line does and all straight lines have 2 endpoints. Hope this helped.
Triangle ABC is shown below. It’s original lengths are multiplied by 150%. What is the new perimeter of A’B’C?
Answer: 12757.5cm²
Step-by-step explanation:
A is 20cm x 150% =30cm
B is 9cm x 150% =13.5cm
C is 21cm x 150% =31.5cm
30cm x 13.5cm x 31.5cm= 12757.5cm²
The diagram below shows the dimensions of a rectangular house with a rectangular backyard. What is the total area, in square feet, of the house and backyard?
Answer:
D) 5,200
Step-by-step explanation:
The formula to find the area of a r rectangle: l x w, where l is the length and w is width.
Area of the backyard: 50 x 80
= 4,000 ft
Area of the house: 40 x 30
= 1,200 ft
Total = 4,000 + 1,200
= 5,200 ft²
PLEASE HELP
What is the measure of ∠I? Explain.
Describe the relationship between ∠H and ∠L.
The Relationship between Angle H and Angle L is that they are Corresponding Angles. Corresponding Angles are angles that equal to each other and are on the same side of the tranversal.
Sorry I don't know the answer to the first one without numbers. Hope that helped!
HELP NOW!!! FOR 11 POINTS!!! Enter the correct sum in each box. Use the number line to help you.
(A vertical number line from negative 7 to 3 with tick marks at intervals of 1 tenth)
(A) 4.6 + (–5.9)
(B) –4.4 + 6.2
(C) 2.1 + 0.5
(D) –3.8 + (–1.3)
The answers are shown below:
a) 4.6 + (–5.9)
b) 1.8
c) 2.6
d) -4.6
what is Number line?A horizontal line with evenly spaced numerical increments is referred to as a number line. How the number on the line can be answered depends on the numbers present. The use of the number is determined by the question that it corresponds to, such as when graphing a point.
The horizontal straight lines known as number lines are where integers are arranged in equal intervals. A number line can be used to represent every number in a sequence. The endpoints of this line go on forever. Integers are arranged on a number line in the image above.
Given:
a) 4.6 + (–5.9)
( The arrow will be on 4.6 and move the arrow right of of the number line to reach -5.9)
Using Integers,
4.6 - 5.9 = -1.3
b) ) –4.4 + 6.2
= 1.8
( The arrow will be on -4.4 and move the arrow right of of the number line to reach 6.2 units)
c) 2.1 + 0.5
= 2.6
d) –3.8 + (–1.3)
= -3.8 - 1.3
= -4.6
As, in number line to perform addition the arrow move to right side of number line and to perform subtraction the arrow move left side.
Learn more about number line here:
https://brainly.com/question/13425491
#SPJ5
If the volume of the solid below is 440 cubic inches, what is the height of the solid?
Answer:
Height= 11
Step-by-step explanation:
V= l x w x h
4 x 10 x ? = 440
?= 11
Answer:
40
I did the 4 x the 10 and you get 40 (I dont get english very good)
I am sorry if I was wrong :)
The dot plot shows the number of pretzels that were in each snack bag made for a party.
100 POINTS AND BRAINLY IF CORRECT. A dot plot whose number line is labeled Number of pretzels. There are 2 dots above 14, 2 dots above 15, 4 dots above 16, 2 dots above 18, 1 dot above 19, 3 dots above 20, and 1 dot above 21.
How many snack bags were made for the party? Enter your answer in the box.
Answer:
15 snack bags
Step-by-step explanation:
Well, if each dot represents the amount of pretzels in each bag, then all we have to do is count all the dots.
Answer:15:))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
Step-by-step explanation:
BRAINLIEST
5/6 + 3/6
Add. Simplify and reduce your answers to the lowest terms.
A.8/6
B.1 1/3
C.8/12
D.3/4
Answer:
B. 1 1/3
Step-by-step explanation:
[tex]\frac{5}{6} + \frac{3}{6} = \frac{8}{6}[/tex]
[tex]\frac{8}{6} = \frac{4}{3}[/tex]
three can go into 4 once, so we have a whole number of 1 and a leftover 1/3.
= [tex]1\frac{1}{3}[/tex]
hope this helps :)
HELP!
Four one foot rulers laid end to end reach how many inches?
Answer:
48 inches
Step-by-step explanation:
Answer: 48
Step-by-step explanation: 1 foot = 12 inches. 12 inches x 4 feet = 48 inches
Inches x feet
Show that 4(6m + 3) is equivalent to 4(m + 3 +5m) using algebraic properties. Explain which properties you used. (20 POINTS)
Answer:
use the associative property for 5m+m and the communitive property to move 6m before 3
25x4
A) 800
B) 35
C) 52
D) 100
Answer:
D) 100
If 25 is a quarter (one-fourth) of 100, multiply 25 by 4 to get 100, the full amount.