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
soldier1979 [14.2K]
4 years ago
15

The cup was filled at a constant rate. It started empty. After 2 seconds, it held 70 cm^3 of water.

Mathematics
1 answer:
nydimaria [60]4 years ago
8 0

Answer:

About 90%

Step-by-step explanation:

If the cup was filled at a constant rate, then the cup fills at 70/2=35 cubic centimeters per second. The formula for the volume of a cone is \frac{1}{3} \pi r^2 h, or in this case \frac{112}{3}\pi cubic centimeters. After 3 seconds, the cup would have 35*3=105 cubic centimeters of water inside of it, or about 89.52% which rounds to 90%. Hope this helps!

You might be interested in
How do i write 4n²/7 into a verbal expression ?​
Anna11 [10]

Answer:

four n squared divided by 7

Step-by-step explanation:

:) please thank me and mark me brainliest

6 0
4 years ago
Which quadratic function in vertex form can be represented by the graph that has a vertex 3.-7) and posses
vovangra [49]

Answer:D

Step-by-step explanation:

5 0
3 years ago
A conveyor belt carries supplies from the first floor to the second floor, which is 26 feet higher. The belt makes a 60° angle w
tamaranim1 [39]
<h3>Answer:</h3>

30 ft; 0.4 min

<h3>Step-by-step explanation:</h3>

The mnemonic SOH CAH TOA reminds you ...

... Sin = Opposite/Hypotenuse

Here, the angle of elevation is opposite the triangle side representing the distance between floors. The hypotenuse is the length of the conveyor belt. Rearranging the formula (by muliplying by Hypotenuse/Sin), we get ...

... Hypotenuse = Opposite/Sin

Filling in the values from this problem, we have ...

... length of conveyor = (26 ft)/sin(60°) ≈ 30 ft

The time it takes to travel that distance is given by ...

... time = distance/speed

... time = (30 ft)/(75 ft/min) = 2/5 min = 0.4 min

3 0
3 years ago
Which subtraction expression
Bond [772]
If you would like to know which subtraction expression has the difference 1 + 4i, you can calculate this using the following steps:

a. (–2 + 6i) – (1 – 2i) = –2 + 6i – 1 + 2i =  –3 + 8i

b. (–2 + 6i) – (–1 – 2i) = <span>–2 + 6i + 1 + 2i =  </span>–1 + 8i

c. (3 + 5i) – (2 – i) = 3 + 5i – 2 + i = 1 + 6i

d. (3 + 5i) – (2 + i) = 3 + 5i – 2 – i = 1 + 4i

The correct result would be <span>d. (3 + 5i) – (2 + i).</span>
5 0
3 years ago
Read 2 more answers
Find the surface area of the
Brums [2.3K]

Answer:

169 sq cm

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • A function f is​ _____ on an open interval I​ if, for any choice of x1 and x2 in​ I, with 1 less than
    6·1 answer
  • What is 2.7 repeating as a fraction?
    15·2 answers
  • Use a proportion to solve the problem. Round to the nearest tenth as needed.
    5·1 answer
  • How old am I if 400 reduced by 2 times my age is 204
    5·1 answer
  • The velocity-time graph for a cycle is shown.
    13·1 answer
  • Three consecutive odd integers are such that the square of the third integer is 9 less than the sum of the squares of the first
    13·1 answer
  • What is .015 as fraction
    9·2 answers
  • Could someone please check my answer and explain? im not sure if im doing this right
    15·1 answer
  • Help pls quick!PLS AND TY
    13·1 answer
  • Suppose the x-intercept of f(x) is (p,0) and the x-intercept of g(x) is (q,0). What is the value of p+q?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!