1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
polet [3.4K]
2 years ago
5

In order to determine if engine oil EEEA B C will improve gas mileage, a research study was conducted. From a wide range of vehi

cle makes, models, and model years, 400 vehicles were randomly selected. Half of the vehicles were chosen at random to receive oil , and the other half received a generic brand of oil. The resulting data showed that vehicles that received engine oil had substantial improvements in gas mileage as compared to those that received the generic brand of engine oil. Which of the following can best be concluded based on the design and results of the research?
a. Engine oil E improves gas mileage better than any other available engine oil.
b. Engine oil E will cause a significant improvement in gas mileage.
c. Engine oil E will improve the gas mileage of any vehicle that uses it.
d. Engine oil E is likely to improve the gas mileage of cars that use it.
Mathematics
1 answer:
Georgia [21]2 years ago
5 0

Answer:

b. Engine oil E will cause a significant improvement is gas mileage.

Step-by-step explanation:

The research was conducted with the random vehicles who were introduced with Engine oil E. When compared with engine oil E and the generic oil the vehicle that uses engine oil E performed better. The gas mileage of such vehicles improved significantly as compared to other vehicles who received generic oil.

You might be interested in
Match each quadratic equation with its solution set.
Luba_88 [7]

Answer:

2x²-32 ⇒ x²=16⇒ (-4,4)

4x²-100 ⇒x²=25 ⇒(-5,5)

x²-55=9 ⇒x²=64 ⇒(-8,8)

x²-140=-19 ⇒x²=121 ⇒(-11,11)

2x²-18=0 ⇒x²=9 ⇒(-3,3)

5 0
3 years ago
Read 2 more answers
What is the area of the rectangle? (area = length x width)
dimaraw [331]

Answer:

C. 10 Units

Step-by-step explanation:

Multiply two and five together to get ten. You can get these numbers by counting the amount of space between each dot.

8 0
2 years ago
Read 2 more answers
Is there are 4 more girls than boys in ms. Raubs class of 28 students what is the ratio of girls to boys
Viefleur [7K]
The ratio of girls to boys would be  16:12 because if you divide 28 by 2 you get 14. subtract 2 to on one of them and add the two to the other. You get 12 and 16. There is a difference of 4 to them and when you add them together you get 28. :)
7 0
3 years ago
Which number is between 0.5 and 5/8<br><br> A) 1/4<br><br> B) 8/28<br><br> C) 9/16<br><br> D) 19/28
Andru [333]
I think a but not sure but i hope i helped :D
8 0
2 years ago
Read 2 more answers
Pea flowers may be purple (P) or white (p). Pea seeds may be round (R) or wrinkled (r). What proportion of the offspring from th
Rudiy27

Answer:

The proportion of the offspring from the cross PpRr × PpRr that are expected to have white flowers and wrinkled seeds is 1/16 or 6.25%.

Step-by-step explanation:

The uppercase letter represents the dominant allele, while the lowercase represents the recessive allele. The dominant allele determines the phenotype (observable trait) when it is present. 

When you cross heterozygous individuals for each trait, each individual of the offspring has the probability of 1/6 of each combination of four alleles (two for each trait). Because the dominant allele determines the phenotype when it is present, the probability of dominant phenotypes is higher than recessive phenotypes.

Proportions of each phenotype in the offspring from the cross PpRr × PpRr are:

Purple flowers with round seeds: 9/16

Purple flowers with wrinkled seeds: 3/16 

White flowers with round seeds: 3/16

White flowers with wrinkled seeds: 1/16

The proportion of individuals with white flowers and wrinkled seeds is the lowest because they are homozygous recessive for both traits. 

8 0
3 years ago
Other questions:
  • Jill wants to paint a cylinder shaped flower pot that has a radius of 8 cm and a height of 9 cm what is the approximate surface
    5·2 answers
  • A jet flies at an altitude of 52,800 feet. What is the jets height in miles?
    11·1 answer
  • Pls help I don’t understand
    13·1 answer
  • If AB = AD + DB and AD = AC, then AB = AC + DB because of the
    5·1 answer
  • PLEASE HELP I HAVE THIS LAST QUESTION PLEASE!!!!
    14·1 answer
  • 3/8 times what equals 1
    14·1 answer
  • A dealer can fix 30 dirt bikes in 5 hours. What is the unit rate per hour? How many dirt bike can they
    6·1 answer
  • Which statement is true?​
    13·1 answer
  • What is 5+8+*2-0/0+39284
    7·1 answer
  • HELP PLEAS EI GIVE BRAINLISt
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!