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
Neko [114]
2 years ago
7

Is this answer correct?

Mathematics
1 answer:
Marianna [84]2 years ago
6 0

Answer:

no

Step-by-step explanation:

You might be interested in
A spherical exercise ball has a maximum diameter of 30 inches when filled with air. The ball was completely empty at the start,
Alex73 [517]

Answer:

A) A(t)  =  4500*π  -  1600*t

B) A(4)  =  7730 in³

C) t  =  8,8 sec

Step-by-step explanation:

The volume of the sphere is:

d max  =  30   r max  =  15 in

V(s) =  (4/3)*π*r³      V(s)  =   (4/3)*π* (15)³

V(s) = 4500*π

A)  Amount of air needed to fill the ball A(t)

A(t)  = Total max. volume of the sphere - rate of flux of air * time

A(t)  =  4500*π  -  1600*t    in³

B) After 4 minutes

A(4)  =  4500*π  - 6400

A(4)  =  14130 - 6400

A(4)  =  7730 in³

C)  A(t)  =  4500*π  -  1600*t  

when  A(t) = 0   the ball got its maximum volume then:

4500*π -  1600*t  =  0

t  =   14130/1600

t  =  8,8 sec

8 0
2 years ago
A bag contains 70 pencils out of which 15 are green and 30 blue.(i)How many pencils of other colours. are in the bag?(ii)A penci
Bas_tet [7]

Answer:

i) 25

ii) 30:70; 30 out of 70 pencils will be blue.

Step-by-step explanation:

i) 70 - (15+30)= 25 other colors in the bag.

ii) 30:70

4 0
3 years ago
Do two whole numbers always have a least common multiple?
finlep [7]
Yes. i am pretty sure
4 0
3 years ago
(3x+2)+(2x^2+3x-1)<br><br> Please answer ty:)
Paul [167]
Answer = 2x^2+6x+1

3x+2+2x^2+3x-1
3x+1+2x^2+3x
Now combine like terms
3x+1+2x^2+3x
6x+1+2x^2
Rearrange terms
6x+1+2x^2
2x^2+6x+1
4 0
2 years ago
Factor the problem: 8x^2+7x-4
Andre45 [30]

x=  

16

7−  

177

​  

 

​  

=−0.394

x=  

16

7+  

177

​  

 

​  

=1.269Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • How many ways are there for eight men and five women to stand in a line so that no two women stand next to each other? [hint: fi
    12·1 answer
  • 24.095 + 3.26 = ____ (5 points)
    15·1 answer
  • The length of a rectangle is 3 meters less than twice its width.
    13·1 answer
  • What is the measure of AC ? (First Picture)
    13·1 answer
  • Solve x – 1 + 5 = 2​
    5·2 answers
  • Please help me asap
    10·1 answer
  • If ∠2 = 82°, then ∠7= ?<br> look at image
    8·2 answers
  • 14. 6 • _____ = 3 • ____
    7·1 answer
  • Help me please guys.<br><br> Determine the ratio in the picture below
    13·1 answer
  • Is 17/2 rational or irrational?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!