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
vampirchik [111]
3 years ago
7

If 80% is 60 marks,what is full marks?I need help quickly please thanks :-)

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0
It would be 100%=100 marks
You might be interested in
Which system of equations has one solution?
ehidna [41]

Answer:

A is correct, when two lines have 1 intersection (1 solution).

Step-by-step explanation:

B Two lines are parallel => No intersection (no solution).

C Two lines are coincident => Many intersection (many solutions).

Hope this helps!

:)

3 0
3 years ago
Read 2 more answers
What is the inverse of f(x) = one-thirdx + 2? h(x) = one-thirdx + 2 h(x) = one-thirdx - 2 h(x) = 3x - 2 h(x) = 3x - 6
Anettt [7]

Answer:

Step-by-step explanation:

h(x) = 3x - 6

i just did the quiz ;-;

8 0
3 years ago
Read 2 more answers
A recipe calls for of a cup of milk for 11 cookies. How many cups of milk are needed to make 66 cookies?
stiv31 [10]
It should be 7 cups of milk
5 0
3 years ago
4. (x+ 2)(2x2 + 9x+8)
vfiekz [6]

Answer:

2x3+9x2+8x+4x2+18x+16

2x3+13x2+26x+16

6 0
3 years ago
A field researcher is gathering data on the trunk diameters of mature pine and spruce trees in a certain area. The following are
lidiya [134]

Answer:

As the pvalue of the test is 0.02097 < 0.1, using a .10 significance level, he can conclude that the average trunk diameter of a pine tree is greater than the average diameter of a spruce tree.

Step-by-step explanation:

Using a .10 significance level, can he conclude that the average trunk diameter of a pine tree is greater than the average diameter of a spruce tree

The null hypothesis is that they are equal(that is, subtraction between the means is 0), while the alternate hypothesis is that they are greater(that is, subtraction between the means is larger than 0). So

H_0: \mu_1 - \mu_2 = 0

H_a: \mu_1 - \mu_2 > 0

In which \mu_1 is the mean pine trees height while \mu_2 is the mean spruce trees height.

The test statistic is:

z = \frac{X - \mu}{s}

In which X is the sample mean, \mu is the value tested at the null hypothesis and s is the standard error.

0 is tested at the null hypothesis:

This means that \mu = 0

Mean trunk diameter (cm) 35 30:

Pine trees - 35

Spruce trees - 30

The sample mean is given by the subtraction of the means. So

X = 35 - 30 = 5

Sample Size 40 80

Population variance 160 160

This means that the standard error for each sample is given by:

s_1 = \frac{\sqrt{160}}{\sqrt{40}} = 2

s_1 = \frac{\sqrt{160}}{\sqrt{80}} = \sqrt{2}

The standard error of the difference is the square root of the sum squared of the standard error of each sample.

s = \sqrt{2^2 + (\sqrt{2})^2} = \sqrt{6} = 2.4495

Test statistic:

z = \frac{X - \mu}{s}

z = \frac{5 - 0}{2.4495}

z = 2.04

Pvalue of the test:

Probability of a sample mean larger than 5, which is 1 subtracted by the pvalue of Z when X = 5.

Looking at the z-table, z = 2.04 has a pvalue of 0.9793.

1 - 0.9793 = 0.0207

As the pvalue of the test is 0.02097 < 0.1, using a .10 significance level, he can conclude that the average trunk diameter of a pine tree is greater than the average diameter of a spruce tree.

8 0
3 years ago
Other questions:
  • Two candidates are running for mayor in a small town. The campaign committee for candidate A has been conducting weekly telephon
    13·1 answer
  • Solve the word problem. Round your final result to the nearest hundredth.
    7·1 answer
  • Whats the answer for this
    8·2 answers
  • What is the radian measure of 205°? Express your answer as a fraction.
    11·1 answer
  • List the perfect cubes that are less than 150
    9·1 answer
  • Https://brainly.com/question/19057122 HELP WITH THIS MATH COPY AND PASTE
    10·1 answer
  • Quick I need it help
    12·2 answers
  • Bác lan thu hoạch được 10 tạ gạo nếp và 1,5 tấn gạo tẻ. hỏi bác lan thu được tất cả bao nhiêu tạ gạo
    6·1 answer
  • What is the value of x?<br> a.3<br> b.4<br> c.6<br> d.8
    8·2 answers
  • Please help what is the answer
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!