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
lozanna [386]
3 years ago
7

a cylindrical tank is a diameter of 14 m and a height of 3.5 m find the capacity of the water tank in litres​

Mathematics
1 answer:
sergey [27]3 years ago
6 0

v=pi.r^2.h

v=3.14×7×7×3.5

v=538.51 cubic meter

1cubic meter=1000 litre

so v=538510 litre

You might be interested in
1. I am a three-digit number. My tens digit is 3 more than my
Tems11 [23]

Answer:

1. 474

2. 397

Step-by-step explanation:

1. If the three-digit number is xyz, then y = z + 3.

When rounded to the nearest ten and reduced by 320, the result is 150.  150 + 320 = 470, so x = 4.  y = 6 if z ≥ 5, and y = 7 if z < 5.

So the number is either 463 or 474.  463 doesn't round to 470, so the answer is 474.

2. If the three-digit number is xyz, then z = x + 4.  y is the largest of the three digits; since all the digits are odd, y is either 5, 7, or 9.  So z is either 5 or 7, and x is either 1 or 3.

When rounded to the nearest hundred and reduced by 100, the result is 300.  100 + 300 = 400, and y > 5, so xyz is rounded up to 400, which means x = 3.  So z = 7 and y = 9.

The answer is 397.

6 0
3 years ago
Given a sample mean difference of 23, a standard error of 4.2, and a critical t value of 2.262, what are the values for the conf
erastova [34]

Answer: (13.4996, 32.5004)

Step-by-step explanation:

The confidence interval for mean difference is given by :-

(\overline{x}_1-\overline{x}_2)\pm t^*\times SE ,

where (\overline{x}_1-\overline{x}_2) = sample mean difference .

t^*= critical t value (two-tailed)

SE= Standard error.

Given : (\overline{x}_1-\overline{x}_2)=23

t^*=2.262

SE= 4.2

Now, the confidence interval for mean difference will be :-

23\pm (2.262)\times (4.2)\\\\= 23\pm9.5004\\\\=(23-9.5004,\ 23+9.5004)\\\\=(13.4996,\ 32.5004)

Hence, the required confidence interval : (13.4996, 32.5004)

8 0
3 years ago
is picking out some movies to rent, and he has narrowed down his selections to 5 documentaries, 7 comedies, 4 mysteries, and 5 h
pogonyaev

Answer: 91

Step-by-step explanation:

Given : The number of documentaries = 5

The number of comedies = 7

The number of mysteries = 4

The number of horror films =5

The total number of movies other than comedy = 14

Now, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is given by :-

^7C_7\times^{14}C_2\\\\\dfrac{7!}{7!(7-7)!}\times\dfrac{14!}{2!(14-2)!}\\\\=(1)\times\dfrac{14\times13}{2}\\\\=91

Therefore, the number of possible combinations of 9 movies can he rent if he wants all 7 comedies is 91 .

5 0
3 years ago
The distance from the Earth to the moon is about 239,000 miles. Rewrite the distance in scientific notation.
egoroff_w [7]

Answer:

2.39 x 10^5 miles

Step-by-step explanation:

Although it is not usually written, there is always a .0 at the end of a number unless there is a specific decimal that was given.

So, the number here is 239,000.0 and if you count the number of spaces that the decimal needs to move in order to be in the correct spot for scientific notation (which is always after the first number), there is 5 spaces.

Therefore the answer is 2.39 x 10^5 miles.

4 0
1 year ago
Rewrite the expression using the distributive property and the gcf 35+42
forsale [732]

Answer: 7(5+6)

Step-by-step explanation:

The greatest common factor is the largest number that can both be divisible by 35 and 42

The distributive property is where a number is distributed to both numerals in the equation

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the first term and the common difference of the arithmetic sequence whose 5 th term is 3 and 19 th term is 45 .
    14·1 answer
  • Dillon words at the park every third day. William words at the park every fourth day. They both last worked together on a Thursd
    13·1 answer
  • Vermont had 3 inches of snow on the ground before the sun melted 2 inches. The next storm tripled the amount on the ground. The
    9·1 answer
  • What is the solution to the system of linear equations graphed below?
    8·1 answer
  • What are the possible values of x
    14·1 answer
  • What is 17-4x=1-4x+12-2x
    14·1 answer
  • Write a recursive function for the following geometric sequence ,6,18,54,162
    14·1 answer
  • Seemas little sister is now 5 years old.if Her
    9·1 answer
  • Which of the binomials below is a factor of this trinomial?<br> x^2+8x+16
    9·1 answer
  • A math teacher has a large box of colored pencils for her students to use during class. Two-sevenths of pencils in the box are r
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!