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
Sveta_85 [38]
2 years ago
6

Quick easy one to do!! 15pts​

Mathematics
2 answers:
Novosadov [1.4K]2 years ago
4 0

Answer:

Step-by-step explanation:

K=34

Hope it helps

And I’m only in 6th grade

And i smart ÙwÚ

Lyrx [107]2 years ago
3 0

Answer:

34

Step-by-step explanation:

90-56=34

You might be interested in
During one term Rachel took 2 mathematics test her mean score was 75 she scored 12 points more on the first test then the second
MaRussiya [10]

Answer: she scored 69 points on the second test.

Step-by-step explanation:

Let x represent the number of points that she scored in the first test.

Let y represent the number of points that she scored in the second test.

If her mean score was 75, it means that

(x + y)/2 = 75

x + y = 75 × 2

x + y = 150- - - - - - - - - 1

If she scored 12 points more on the first test than the second test, it means that

x = y + 12

Substituting x = y + 12 into equation 1, it becomes

y + 12 + y = 150

2y + 12 = 150

2y = 150 - 12

2y = 138

y = 138/2

y = 69

3 0
3 years ago
The formula for the volume V of a cylinder is , where r is the radius of the base and h is the height of the cylinder. Select th
m_a_m_a [10]

Answer:

<h2>h = 4 cm</h2><h2 />

Step-by-step explanation:

V = π r² h

where r = 3 cm

V = 36π cm³

solve for h

plugin values into the formula:

36π = π 3² h

h = <u> 36π </u>

      π 3²

h = 4 cm

6 0
3 years ago
Then, answer Part B. A number cube that has sides numbered 1 through 6 is rolled 180 times. Part A How many times would you expe
Nitella [24]

Using the binomial distribution, it is found that the expected values are given by:

a) 120.

b) 150.

<h3>What is the binomial probability distribution?</h3>

It is the probability of <u>exactly x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

In this problem, for both items, we consider that the number cube is rolled 180 times, hence n = 180.

Item a:

4 of the 6 possible values are greater than 2, hence p = 4/6 = 2/3.

The expected value is given by:
E(X) = 180 x 2/3 = 120.

Item b:

5 of the 6 values are less than 6, hence p = 5/6.

The expected value is given by:
E(X) = 180 x 5/6 = 150.

More can be learned about the binomial distribution at brainly.com/question/24863377

4 0
2 years ago
I need help plzzzz percent equations blank% of $30 =3
Lyrx [107]

Answer:

10%

Step-by-step explanation:

Hello I can help you with this question. Lets start.

The question is asking what percent of $30 is 3

so i think u actually meant $3 right but anyways

30 is 10 times 3

then clearly it would be 10%

gogo that's the answer!

4 0
3 years ago
Need help fast please with these 5 questions
Natali [406]

Answer:

16.....................................

  • 6⁹*6ⁿ = 6¹²
  • 6⁹⁺ⁿ = ¹²
  • 9 + n = 12
  • n = 3

17.....................................

  • 7⁸/7ⁿ = 7³
  • 7⁸⁻ⁿ = 7³
  • 8 - n = 3
  • n = 5

18.....................................

  • 15ⁿ = 1
  • 15ⁿ = 15⁰
  • n = 0

19.....................................

  • 1/10⁵ = 10ⁿ
  • 10⁻⁵ = 10ⁿ
  • -5 = n
  • n = -5

20.....................................

  • (8²)ⁿ = 8¹²
  • 8²ⁿ = 8¹²
  • 2n = 12
  • n = 6

3 0
2 years ago
Other questions:
  • Can someone help me
    10·1 answer
  • I) state the
    14·1 answer
  • What is 0.303 as a fraction ?
    15·2 answers
  • Do number 4 please DONT get it wrong or i block report, i really need help please :)
    11·1 answer
  • Please help me with this thanks
    14·1 answer
  • Julie wants to make 800 g of a 15% alcohol solution by mixing a
    8·1 answer
  • Which expression is equivalent 8(2s + 6)
    13·2 answers
  • Define a polynomial that is a difference of squares. How do you know that it is the difference of squares? How is it factored?
    13·1 answer
  • Four friends are playing the board game Hidden Treasure. The game begins with 40 coins
    13·1 answer
  • The question is on the picture
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!