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
-BARSIC- [3]
3 years ago
14

A cylindrical tank is half-full of oil. The cylinder has a base radius of 100 cm. The height of the cylinder is 250 cm. How many

litres of oil are in the tank? 1 litre = 1000 cm3
Mathematics
2 answers:
lbvjy [14]3 years ago
7 0
V=hpir²


1/2 full

Vcylinderthisone=(1/2)hpir^2
given
h=250
r=100

so

V=(1/2)(250)pi(100)²
V=125pi10000
V=1250000pi
aprox pi=3.141592
V=3926990 cm^3

divide by 1000
3926.99 liters
about 3927 liters
NARA [144]3 years ago
4 0
V=πr²h
V=π(100)² x 250
V=7853982.5 cm³

Then do the conversion:
1 litre = 1000 cm³
x litre =  7853982.5

Cross multiply:

1000x= 7853982.5
 x= 7853982.5/1000
x= 7853.98 litres

You might be interested in
Solve each equation. Check your solution.<br> 4t - 2 = 14
anyanavicka [17]
T = 4. first, you can add 2 to both sides of the equation. you get 4t = 16. then, you can divide both sides by 4 to isolate t.
3 0
2 years ago
Read 2 more answers
The area of a square is 32 cm. find the length of the diagonal
Over [174]

Answer:

8 cm

Step-by-step explanation:

Squares have equal side lengths so if we call each side x, then x × x gives us the area (32 cm²). This means that x² = 32 and therefore, one side is √32 cm.

Next, to work out the diagonal we can use Pythagoras' theory, since we can form a right-angled triangle. a² + b² = c² (c is the diagonal or the hypotenuse)

(√32)² + (√32)² = c²

(note: the square and the square root cancel out)

32 + 32 = 64

c² = 64 ∴ c = √64 which is 8

Hope this helps!

4 0
2 years ago
Read 2 more answers
Explian how to tell wherher (2,-1) is a solution of the equation y=3x-2
jolli1 [7]

Answer:

it is not a solution

Step-by-step explanation:

You would plug them in

-1=3(2)-2

-1=6-2

-1=4

4 0
3 years ago
Read 2 more answers
Can someone plsss help me?!
MAXImum [283]

Answer:

Angle A is 101

Angle B is 79

Angle C is 83

Angle D is 97

Step-by-step explanation:

Vertical angles are congruent, which applies to C.

Lines are parallel so 79 and angle B are the same

Angle a is 101 because its a supplementary angle

Angle D is 97 because its also a supplementary angle so you subtract 83 from 180.

3 0
2 years ago
If a plane can travel 490 miles per hour with the wind and 390 miles per hour against the​ wind, find the speed of the wind and
abruzzese [7]
Let the speed of plane in still air be x and that wind be y
therefore:
x+y=490
x-y=390
next we solve for the values of x and y, first we add the above equations. This will give us:
2x=880
x=880/2
x=440 miles per hour.
substituting the value of x in one of the equations and solving for y we get:
440+y=490
y=490-440
y=50 miles per hour
4 0
3 years ago
Read 2 more answers
Other questions:
  • In the image, two circles are centered at A. The circle containing B was dilated to produce the circle containing B′. What is th
    13·2 answers
  • the deepest point in the indian ocean is the java trench, which is 25,344 feet below sea level. elevations below sea level are r
    13·1 answer
  • There is a state soccer tournament with 128 teams competing for 1st place. Each week, half of the teams get eliminated. How many
    8·2 answers
  • What plus 5 equals -2
    12·1 answer
  • Subtract 5-3 1/3 <br><br> a) 1 2/3<br> b) 2 2/3<br> c) 3 1/3<br> d) 2 2/3
    14·2 answers
  • 20 points please help - geomtry
    9·1 answer
  • Identify the solid. A. triangular prism B. hexagonal prism C. right pyramid D. rectangular prism
    15·2 answers
  • What is the volume of the sphere? Round the answer to the nearest cubic unit.
    11·2 answers
  • If the two solids have the same volume and height, find the area of one of the cross sections. A. 18 cm B. 36 cm C. 48 cm? D. 72
    13·2 answers
  • Your soccer team is holding a silent auction dinner as a fundraiser to pay for school uniforms. The list shows all the expenses
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!